Volkert Dirk Siersma

Volkert Dirk Siersma

!!Statistiker, External Lecturer

ORCID: 0000-0003-1941-2681

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  1. Published

    Seasonal variation in biopsy-proven giant cell arteritis in Eastern Denmark from 1990-2018

    Konig, E. B., Stormly Hansen, M., Foldager, J., Siersma, Volkert Dirk, Loft, A., Terslev, Lene, Møller Døhn, U., Radmer Jensen, M., Wiencke, Anne Katrine Riise, Faber, Carsten, Hamann, Steffen & Heegaard, Steffen, 2021, In: Acta Ophthalmologica. 99, 5, p. 527-532 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    P05-13 Associations between occupational physical activity and progression of carotid atherosclerosis among middle-aged women, are those with pre-existing cardiovascular disease more vulnerable?

    Korshoj, M., Allesoe, K., Mortensen, Ole Steen, Siersma, Volkert Dirk & Kauhanen, J., 2022, In: European Journal of Public Health. 32, 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  3. Published

    Occupational physical activity predicts baseline and 8-year progression of carotid atherosclerosis among women

    Korshøj, M., Allesøe, K., Mortensen, Ole Steen, Siersma, Volkert Dirk, Kauhanen, J. & Krause, N., 2023, In: Scandinavian Journal of Medicine and Science in Sports. 33, 9, p. 1792-1806 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Relationship between cumulative exposure to occupational lifting throughout working life and risk of ischemic heart disease in men and women. The Copenhagen Aging and Midlife Biobank

    Korshøj, M., Møller, Anne, Siersma, Volkert Dirk, Lund, Rikke, Hougaard, Charlotte Ørsted, Mortensen, Ole Steen & Allesøe, K., 2024, In: Annals of Work Exposures and Health. 68, 2, p. 109–121 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    The effectiveness of computer reminders for improving quality assessment for point-of-care testing in general practice - a randomized controlled trial.

    Kousgaard, Marius Brostrøm, Siersma, Volkert Dirk, Reventlow, Susanne, Ertmann, Ruth Kirk, Felding, P. & Waldorff, Frans Boch, 2013, In: Implementation Science. 8, 47

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    The impact of gender on the long-term morbidity and mortality of patients with type 2 diabetes receiving structured personal care: A 13-year follow-up study

    Krag, M. Ø., Hasselbalch, L., Siersma, Volkert Dirk, Nielsen, Anni Brit Sternhagen, Reventlow, Susanne, Malterud, Kirsti & Olivarius, Niels de Fine, Feb 2016, In: Diabetologia. 59, 2, p. 275-285 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Short-term practice effects and variability in cognitive testing in a healthy elderly population

    Krenk, L., Rasmussen, L. S., Siersma, Volkert Dirk & Kehlet, Henrik, 2012, In: Experimental Gerontology. 47, 6, p. 432–436 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    What is a PROM and why do we need it? Article 1 in a series of 10

    Krogsgaard, Michael R., Brodersen, John Brandt, Christensen, Karl Bang, Siersma, Volkert Dirk, Kreiner, Svend, Jensen, J., Hansen, C. F. & Comins, J. D., 2021, In: Scandinavian Journal of Medicine and Science in Sports. 31, 5, p. 967-971 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    How to translate and locally adapt a PROM: Assessment of cross-cultural differential item functioning

    Krogsgaard, Michael R., Brodersen, John Brandt, Christensen, Karl Bang, Siersma, Volkert Dirk, Jensen, J., Hansen, C. F., Engebretsen, L., Visnes, H., Forssblad, M. & Comins, J. D., 2021, In: Scandinavian Journal of Medicine & Science in Sports. 31, 5, p. 999-1008 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Missing portion sizes in FFQ: alternatives to use of standard portions

    Køster-Rasmussen, Rasmus, Siersma, Volkert Dirk, Halldorson, T. I., Olivarius, Niels de Fine, Henriksen, J. E. & Heitmann, Berit, Aug 2015, In: Public Health Nutrition. 18, 11, p. 1914-1921 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Intentional Weight Loss and Longevity in Overweight Patients with Type 2 Diabetes: A Population-Based Cohort Study

    Køster-Rasmussen, Rasmus, Simonsen, M. K., Siersma, Volkert Dirk, Henriksen, J. E., Heitmann, Berit & Olivarius, Niels de Fine, 25 Jan 2016, In: PloS one. 11, 1, p. 1-14 14 p., e0146889.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Back on track: smoking cessation and weight changes over nine years in a community-based cohort study

    Køster-Rasmussen, Rasmus, Permin, C. A., Siersma, Volkert Dirk, Henriksen, J. E., Heitmann, Berit, Heldgaard, P. E. & Olivarius, Niels de Fine, Dec 2015, In: Preventive Medicine. 81, p. 320-325 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    BRAF mutations in conjunctival melanoma: investigation of incidence, clinicopathological features, prognosis and paired premalignant lesions

    Larsen, A., Dahl, C., Dahmcke, C. M., Lade-Keller, J., Siersma, Volkert Dirk, Toft, Peter Bjerre, Coupland, S. E., Prause, J. U., Guldberg, P. & Heegaard, Steffen, 2016, In: Acta Ophthamologica (Online). 94, 5, p. 463-470 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    MicroRNA expression analysis and Multiplex ligation-dependent probe amplification in metastatic and non-metastatic uveal melanoma

    Larsen, A., Holst, L. M., Kaczkowski, B., Andersen, M. T., Manfé, V., Siersma, Volkert Dirk, Kolko, Miriam, Kiilgaard, Jens Folke, Winther, Ole, Prause, J. U., Gniadecki, R. & Heegaard, Steffen, 2014, In: Acta Ophthalmologica. 92, 6, p. 541-549

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    A Retrospective Review of Conjunctival Melanoma Presentation, Treatment, and Outcome and an Investigation of Features Associated With BRAF Mutations

    Larsen, A., Dahmcke, C. M., Dahl, C., Siersma, Volkert Dirk, Toft, Peter Bjerre, Coupland, S. E., Prause, J. U., Guldberg, P. & Heegaard, Steffen, Nov 2015, In: J A M A Ophthalmology. 133, 11, p. 1295-1303 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    The excess mortality of patients with diabetes and concurrent psychiatric illness is markedly reduced by structured personal diabetes care. A 19-year follow up of the randomized controlled study Diabetes Care in General Practice (DCGP).

    Larsen, J. R., Siersma, Volkert Dirk, Davidsen, Annette Sofie, Waldorff, Frans Boch, Reventlow, Susanne & Olivarius, Niels de Fine, 2016, In: General Hospital Psychiatry. 38, p. 42-52 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Long-term survival and cognitive function according to blood pressure management during cardiac surgery: A follow up

    Larsen, M. H., Draegert, C., Vedel, A. G., Holmgaard, F., Siersma, Volkert Dirk, Nilsson, J. C. & Rasmussen, L. S., 2020, In: Acta Anaesthesiologica Scandinavica. 64, 7, p. 936-944 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Trend in antibiotic prescription to children aged 0-6 years old in the capital region of Denmark between 2009 and 2018: Differences between municipalities and association with socioeconomic composition

    Larsen, S. B., Jensen, Maria Louise Veimer, Bjerrum, Lars, Siersma, Volkert Dirk, Bang, C. W. & Jensen, J. N., 2021, In: The European Journal of General Practice. 27, 1, p. 257-263 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    GP and staff evaluation of the maturity matrix as a tool to assess and improve organizational development in primary care

    Loegstrup, L., Edwards, A., Waldorff, Frans Boch, Siersma, Volkert Dirk, Buch, M. S. & Eriksson, T., 2009, In: International Journal of Health Care Quality Assurance. 22, 7, p. 684-701 18 p.

    Research output: Contribution to journal › Journal article › Research

  20. Published

    Fitness consultations in routine care of patients with type 2 diabetes in general practice: an 18-month non-randomised intervention study

    Lohmann, H., Siersma, Volkert Dirk & Olivarius, Niels de Fine, 2010, In: B M C Family Practice. 11, p. 83-92 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Early predictors of the long-term outcome of low back pain - results of a 22-year prospective cohort study from general practice

    Lonnberg, F., Pedersen, P. & Siersma, Volkert Dirk, 2010, In: Family Practice. 27, 6, p. 609-614 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Adequate measurement of menopausal symptoms

    Lund, K. S., Waldorff, Frans Boch, Siersma, Volkert Dirk & Brodersen, John Brandt, 16 Jun 2015.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  23. Published

    Efficacy of a standardised acupuncture approach for women with bothersome menopausal symptoms: a pragmatic randomised study in primary care (the ACOM study)

    Lund, K. S., Siersma, Volkert Dirk, Brodersen, John Brandt & Waldorff, Frans Boch, 2019, In: BMJ Open. 9, 1, p. e023637 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Measuring bothersome menopausal symptoms: development and validation of the MenoScores questionnaire

    Lund, K. S., Siersma, Volkert Dirk, Christensen, Karl Bang, Waldorff, Frans Boch & Brodersen, John Brandt, 2018, In: Health and Quality of Life Outcomes. 16, 12 p., 97.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    Sustained effects of a brief and standardised acupuncture approach on menopausal symptoms: post hoc analysis of the ACOM randomised controlled trial

    Lund, K. S., Siersma, Volkert Dirk, Bang, C. W., Brodersen, John Brandt & Waldorff, Frans Boch, 2020, In: Acupuncture in Medicine. 38, 6, p. 396-406 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    Menopausal symptoms: Development and dimensionality of the MenoScores Questionnaire (MSQ)

    Lund, K. S., Waldorff, Frans Boch, Siersma, Volkert Dirk & Brodersen, John Brandt, 15 Jun 2016.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  27. Published

    The efficacy of acupuncture on menopausal symptoms (ACOM study): protocol for a randomised study

    Lund, K. S., Brodersen, John Brandt, Siersma, Volkert Dirk & Waldorff, Frans Boch, Mar 2017, In: Danish Medical Journal. 64, 3, p. 1-6 6 p., A5344.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    The effectiveness of structured personal care of type 2 diabetes on recurrent outcomes: a 19 year follow-up of the study Diabetes Care in General Practice (DCGP)

    Lundström, H. M., Siersma, Volkert Dirk, Nielsen, Anni Brit Sternhagen, Brodersen, John Brandt, Reventlow, Susanne, Andersen, Per Kragh & Olivarius, Niels de Fine, Jun 2014, In: Diabetologia. 57, 6, p. 1119-23 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Examining to what extent pregnancy-related physical symptoms worry women in the first trimester of pregnancy: a cross-sectional study in general practice

    Lutterodt, Melissa C., Kähler, P., Kragstrup, Jakob, Nicolaisdottir, Dagny Ros, Siersma, Volkert Dirk & Ertmann, Ruth Kirk, 2019, In: British Journal of General Practice Open . 3, 9 p., 4.

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    Good quality of oral anticoagulation treatment in general practice using international normalised ratio point of care testing.

    Løkkegaard, T., Pedersen, T. H., Lind, B., Siersma, Volkert Dirk & Waldorff, Frans Boch, Feb 2015, In: Danish Medical Journal. 62, 2, p. 1-6 6 p., A5010.

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Did psychosocial status, sociodemographics and smoking status affect non-attendance in control participants in the Danish Lung Cancer Screening Trial? A nested observational study

    Malmqvist, J., Siersma, Volkert Dirk, Thorsen, Hanne, Heleno, B., Rasmussen, J. F. & Brodersen, John Brandt, 2020, In: BMJ Open. 10, 2, 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Short and long-term psychosocial consequences of participating in a colorectal cancer screening programme: a matched longitudinal study

    Malmqvist, J., Siersma, Volkert Dirk, Hestbech, Mie Sara, Bang, C. W., Nicolaisdottir, Dagny Ros & Brodersen, John Brandt, 2022, In: BMJ Evidence-Based Medicine. 27, 2, 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Consequences of screening in colorectal cancer (COS-CRC): development and dimensionality of a questionnaire

    Malmqvist, J., Siersma, Volkert Dirk, Bang, C. W. & Brodersen, John Brandt, Dec 2021, In: BMC Psychology. 9, 1, 16 p., 7.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Psychosocial consequences of invitation to colorectal cancer screening: A matched cohort study

    Malmqvist, J., Siersma, Volkert Dirk, Hestbech, Mie Sara, Nicolaisdottir, Dagny Ros, Bang, C. W. & Brodersen, John Brandt, 2021, In: Journal of Epidemiology and Community Health. 75, 9, 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Informasjonsstyrke og utvalgsstørrelse i kvalitative studier

    Malterud, Kirsti, Siersma, Volkert Dirk & Guassora, Ann Dorrit, 2016, In: Fysioterapeuten. 83, 8, p. 31 1 p.

    Research output: Contribution to journal › Journal article › Research

  36. Published

    Sample size in qualitative interview studies: guided by information power

    Malterud, Kirsti, Siersma, Volkert Dirk & Guassora, Ann Dorrit, Nov 2016, In: Qualitative Health Research. 26, 13, p. 1753-1760 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Deaths and cardiopulmonary events following colorectal cancer screening—A systematic review with meta-analyses

    Martiny, Frederik Handberg Juul, Bie, A. K. L., Jauernik, Christian Patrick, Rahbek, O. J., Nielsen, S. B., Gram, Emma Grundtvig, Kindt, I. S., Siersma, Volkert Dirk & Brodersen, John Brandt, 2024, In: PLoS ONE. 19, 3, 23 p., e0295900.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Changes in Prescription Routines for Treating Hypothyroidism Between 2001 and 2015: An Observational Study of 929,684 Primary Care Patients in Copenhagen

    Medici, B. B., Nygaard, Birte, la Cour, J. L., Grand, Mia Klinten, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros, Lind, B., Olivarius, Niels de Fine & Andersen, Christen Bertel L, 2019, In: Thyroid. 29, 7, p. 910-919

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Endo- and exocytic rate constants for spontaneous and protein kinase C-activated T cell receptor cycling

    Bonefeld, Charlotte Menne, Møller Sørensen, T., Siersma, Volkert Dirk, von Essen, Marina Rode, Ødum, Niels & Geisler, Carsten, 2002, In: European Journal of Immunology. 32, 3, p. 616-26 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Risk of new or recurrent cancer after a high perioperative inspiratory oxygen fraction during abdominal surgery

    Meyhoff, C. S., Jørgensen, Lars Nannestad, Wetterslev, J., Siersma, Volkert Dirk & Rasmussen, L. S., 2014, In: British Journal of Anaesthesia. 113, suppl. 1, p. i74-i81 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Social relations and contact with general practitioner in a middle-aged Danish population: a prospective register- and survey-based cohort study

    Mikkelsen, A. S. B., Lund, Rikke, Siersma, Volkert Dirk, Jørgensen, Terese Sara Høj, Christensen, Ulla & Kristiansen, Maria, 2022, In: BMC Health Services Research. 22, 481, 481.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Influence of educational level on test and treatment for incident hypothyroidism

    Møllehave, Line Tang, Jacobsen, R. K., Linneberg, Allan René, Skaaby, T., Knudsen, Nils Jakob, Jørgensen, T., Kårhus, L. L., Kriegbaum, Margit, Grand, Mia Klinten, Siersma, Volkert Dirk, Lind, B., Andersen, Christen Bertel L, Nygaard, Birte, Medici, B. B., Pedersen, I. B., Ravn-Haren, G. & Thuesen, B. H., 2021, In: Clinical Endocrinology. 94, 6, p. 1025-1034 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Does physical exposure throughout working life influence chair-rise performance in midlife? A retrospective cohort study of associations between work and physical function in Denmark

    Møller, Anne, Reventlow, Susanne, Hansen, Åse Marie, Andersen, L. L., Siersma, Volkert Dirk, Lund, Rikke, Avlund, K., Andersen, J. H. & Mortensen, Ole Steen, 4 Nov 2015, In: B M J Open. 5, 11, p. 1-9 9 p., e009873.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    Cumulative physical workload and mobility limitations in middle-aged men and women: a population-based study with retrospective assessment of workload

    Møller, Anne, Mänty, M., Andersen, L. L., Siersma, Volkert Dirk, Lund, Rikke & Mortensen, Ole Steen, 2019, In: International Archives of Occupational and Environmental Health. 92, 5, p. 651-660 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    Does a history of physical exposures at work affect hand-grip strength in midlife? A retrospective cohort study in Denmark

    Møller, Anne, Reventlow, Susanne, Hansen, Åse Marie, Andersen, L. L., Siersma, Volkert Dirk, Lund, Rikke, Avlund, K., Andersen, J. H. & Mortensen, O. S., 10 May 2013, In: Scandinavian Journal of Work, Environment & Health. 39, 6, p. 599-608

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Allogeneic mesenchymal stem cell therapy for dry eye disease in patients with Sjögren's syndrome: A randomized clinical trial

    Møller-Hansen, M., Larsen, A. C., Wiencke, Anne Katrine Riise, Terslev, Lene, Siersma, Volkert Dirk, Andersen, T. T., Hansen, Adam Espe, Bruunsgaard, Helle, Haack-Sørensen, M., Ekblond, A., Kastrup, J., Utheim, T. P. & Heegaard, Steffen, 2024, In: Ocular Surface. 31, p. 1-8 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    The Danish contribution to the European DEMOCOPHES project: A description of cadmium, cotinine and mercury levels in Danish mother-child pairs and the perspectives of supplementary sampling and measurements

    Mørck, T. A., Nielsen, F., Nielsen, J. K. S., Jensen, J. F., Hansen, P. W., Hansen, A. K., Christoffersen, L. A. N., Siersma, V. D., Larsen, I. H., Hohlmann, L. K., Skaanild, M. T., Frederiksen, H., Biot, P., Casteleyn, L., Kolossa-Gehring, M., Schwedler, G., Castaño, A., Angerer, J., Koch, H. M., Esteban, M. & 12 others, Schoeters, G., Den Hond, E., Exley, K., Sepai, O., Bloemen, L., Joas, R., Joas, A., Fiddicke, U., Lopez, A., Cañas, A., Aerts, D. & Knudsen, Lisbeth E., Aug 2015, In: Environmental Research. 141, p. 96-105 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    PCB Concentrations and Dioxin-like Activity in Blood Samples from Danish School Children and Their Mothers living in Urban and Rural Areas

    Mørck, T. A., Erdmann, S. E., Long, M., Mathiesen, Line, Nielsen, F., Siersma, Volkert Dirk, Bonefeld-Jørgensen, E. C. & Knudsen, Lisbeth E., Jul 2014, In: Basic & Clinical Pharmacology & Toxicology. 115, 1, p. 134-44 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Micronucleus frequency in Danish school children and their mothers from the DEMOCOPHES population.

    Mørck, T. A., Vande Loock, K., Poulsen, M. B., Siersma, Volkert Dirk, Nielsen, J. K. S., Hertel, O., Kirsch-Volders, M. & Knudsen, Lisbeth E., 2016, In: Mutagenesis. 31, 1, p. 1-8 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    PFAS concentrations in plasma samples from Danish school children and their mothers

    Mørck, T. A., Nielsen, F., Nielsen, J. K. S., Siersma, Volkert Dirk, Grandjean, P. & Knudsen, Lisbeth E., 2015, In: Chemosphere. 129, p. 203-209 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  51. Published

    Developing a prediction model to identify people with severe mental illness without regular contact to their GP - a study based on data from the Danish national registers

    Naesager, A. H. D., Damgaard, S. N., Rozing, Maarten Pieter, Siersma, Volkert Dirk, Møller, Anne & Jensen, Katrine Tranberg, 2024, In: BMC Psychiatry. 24, 1, 12 p., 301.

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. Published

    Symptom-based screening tool for asthma syndrome among young children in Uganda

    Nantanda, R., Siersma, Volkert Dirk, Ndeezi, G., Tumwine, J. K. & Ostergaard, M. S., 2020, In: Primary Care Respiratory Journal. 30, 6 p., 30.

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. Published

    Randomised controlled trial of extraarticular gold bead implantation for treatment of knee osteoarthritis: a pilot study

    Nejrup, K., Olivarius, Niels de Fine, Jacobsen, J. L. & Siersma, Volkert Dirk, Nov 2008, In: Clinical Rheumatology. 27, 11, p. 1363-9 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  54. Published

    Poor self-rated health did not increase risk of permanent nursing placement or mortality in people with mild Alzheimer’s disease

    Nielsen, Anni Brit Sternhagen, Siersma, Volkert Dirk, Waldemar, Gunhild & Waldorff, Frans Boch, 2016, In: B M C Geriatrics. 16, 87

    Research output: Contribution to journal › Journal article › Research › peer-review

  55. Published

    The impact of changes in self-rated general health on 28-year mortality among middle-aged Danes

    Nielsen, Anni Brit Sternhagen, Siersma, Volkert Dirk, Kreiner, Svend, Hiort, L. C., Drivsholm, Thomas, Eplov, L. F. & Hollnagel, Hanne, 2009, In: Scandinavian Journal of Primary Health Care. 27, 3, p. 160-166 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  56. Published

    The relationship between HbA(1c) level, symptoms and self-rated health in type 2 diabetic patients

    Nielsen, Anni Brit Sternhagen, Gannik, D. E., Siersma, Volkert Dirk & Olivarius, Niels de Fine, Sep 2011, In: Scandinavian Journal of Primary Health Care. 29, 3, p. 157-164 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  57. Published

    The predictive value of self-rated health in the presence of subjective memory complaints on permanent nursing home placement in elderly primary care patients over 4-year follow-up.

    Nielsen, Anni Brit Sternhagen, Siersma, Volkert Dirk, Waldemar, Gunhild & Waldorff, Frans Boch, 2013, In: Age and Ageing. 43, 1, p. 50-57

    Research output: Contribution to journal › Journal article › Research › peer-review

  58. Published

    Self-rated general health among 40-year-old Danes and its association with all-cause mortality at 10-, 20-, and 29 years' follow-up

    Nielsen, Anni Brit Sternhagen, Siersma, Volkert Dirk, Hiort, L. C., Drivsholm, T., Kreiner, Svend & Hollnagel, Hanne, 2008, In: Scandinavian Journal of Public Health. 170, 36, p. 3-11 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  59. Published

    Health-Related Quality of Life and Physical Function in Individuals with Parkinson's Disease after a Multidisciplinary Rehabilitation Regimen-A Prospective Cohort Feasibility Study

    Nielsen, C., Siersma, Volkert Dirk, Ghaziani, E., Beyer, N., Magnusson, Stig Peter & Couppé, Christian, Jan 2020, In: International Journal of Environmental Research and Public Health. 17, 20, 13 p., 7668.

    Research output: Contribution to journal › Journal article › Research › peer-review

  60. Published

    Respiratory syncytial virus infection - risk factors for hospital admission: a case-control study

    Nielsen, H. E., Siersma, Volkert Dirk, Andersen, S., Gahrn-Hansen, B., Mordhorst, C. H., Nørgaard-Pedersen, B., Røder, B., Sørensen, T. L., Temme, R. & Vestergaard, B. F., 2003, In: Acta Paediatr.. 92, p. 1314-1321

    Research output: Contribution to journal › Journal article › Research › peer-review

  61. Published

    Treatment of opioid overdose in a physician-based prehospital EMS: Frequency and long-term prognosis

    Nielsen, K., Nielsen, S. L., Siersma, Volkert Dirk & Rasmussen, L. S., 2011, In: Resuscitation. 82, 11, p. 1410-1413 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  62. Published

    Are CSF Biomarkers Useful as Prognostic Indicators in Diagnostically Unresolved Cognitively Impaired Patients in a Normal Clinical Setting

    Nielsen, M. S., Simonsen, A. H., Siersma, Volkert Dirk, Hasselbalch, Steen & Høgh, Peter, Sep 2016, In: Dementia and Geriatric Cognitive Disorders. Extra. 6, 3, p. 465-476 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  63. Published

    The Diagnostic and Prognostic Value of a Dual-Tasking Paradigm in a Memory Clinic

    Nielsen, M. S., Simonsen, A. H., Siersma, Volkert Dirk, Hasselbalch, Steen & Høgh, Peter, 2018, In: Journal of Alzheimer's Disease. 61, 3, p. 1189-1199 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  64. Published

    Mobility decline in old age: the combined effect of mobility-related fatigue and socioeconomic position

    Nilsson, Charlotte Juul, Siersma, Volkert Dirk, Mänty, M. R., Avlund, K., Vass, Mikkel & Lund, Rikke, 2014, In: Journal of Epidemiology & Community Health. 68, p. 510-515 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  65. Published

    Mobility Decline in Old Age: The Joint Effect of Mobility-Related Fatigue and Social Relations.

    Nilsson, Charlotte Juul, Siersma, Volkert Dirk, Avlund, K., Vass, Mikkel & Lund, Rikke, 2013.

    Research output: Contribution to conference › Conference abstract for conference › Communication

  66. Published

    Progression of Mobility Limitations in Old Age: The Combined Effect of Mobility-Related Fatigue and Socio-Economic Position

    Nilsson, Charlotte Juul, Siersma, Volkert Dirk, Mänty, M. R., Lund, Rikke, Vass, Mikkel & Avlund, K., 2013.

    Research output: Contribution to conference › Conference abstract for conference › Research

  67. Published

    Distinguishing fluvio-deltaic facies by bulk geochemistry and heavy minerals: an example from the Miocene of Denmark

    Olivarius, M., Rasmussen, E. S., Siersma, Volkert Dirk, Knudsen, C. & Pedersen, G. K., 2011, In: Sedimentology. 58, 5, p. 1155-1179 25 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  68. Published

    Weight history of patients with newly diagnosed Type 2 diabetes

    Olivarius, N. D. F., Richelsen, B., Siersma, Volkert Dirk, Andreasen, A. H. & Beck-Nielsen, H., 2008, In: Diabetic Medicine. 25, 8, p. 933-41 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  69. Published

    The Astonishing Hypothesis (Letter)

    Olivarius, Niels de Fine & Siersma, Volkert Dirk, 2012, In: Primary Care Diabetes.

    Research output: Contribution to journal › Letter › Research

  70. Published

    Changes in levels of haemoglobin A1c during the first 6 years after diagnosis of clinical type 2 diabetes

    Olivarius, Niels de Fine, Siersma, Volkert Dirk, Hansen, Lars J, Drivsholm, Thomas & Horder, M., 2009, In: Scandinavian Journal of Clinical & Laboratory Investigation. 69, 8, p. 851-857 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  71. Published

    Peripheral vascular disease is associated with reduced glycosuria in newly diagnosed type 2 diabetic patients.

    Olivarius, Niels de Fine, von Holstein-Rathlou, Niels-Henrik, Siersma, Volkert Dirk, Witt, K., Vestbo, E., Andreasen, A. H. & Mogensen, C. E., 2004, In: Diabetes & Metabolism. 30, 3, p. 269-74 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  72. Published

    Prevalence and progression of visual impairment in patients newly diagnosed with clinical type 2 diabetes: a 6-year follow up study

    Olivarius, Niels de Fine, Siersma, Volkert Dirk, Almind, G. J. & Nielsen, N. V., 2011, In: B M C Public Health. 11, 80

    Research output: Contribution to journal › Journal article › Research › peer-review

  73. Published

    Vaegtanamnesen for patienter med nyopdaget type 2-diabetes--sekundaerpublikation

    Olivarius, Niels de Fine, Richelsen, B., Siersma, Volkert Dirk, Andreasen, A. H. & Beck-Nielsen, H., 2008, In: Ugeskrift for læger. 170, 45, p. 3640-3 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  74. Published

    Weight Changes following the Diagnosis of Type 2 Diabetes: The Impact of Recent and Past Weight History before Diagnosis. Results from the Danish Diabetes Care in General Practice (DCGP) Study

    Olivarius, Niels de Fine, Siersma, Volkert Dirk, Køster-Rasmussen, Rasmus, Heitmann, Berit & Waldorff, Frans Boch, 15 Apr 2015, In: P L o S One. 10, 4, p. 1-14 14 p., e0122219.

    Research output: Contribution to journal › Journal article › Research › peer-review

  75. Published

    Changes in patient weight and the impact of antidiabetic therapy during the first 5 years after diagnosis of diabetes mellitus

    Olivarius, Niels de Fine, Andreasen, A. H., Siersma, Volkert Dirk, Richelsen, B. & Beck-Nielsen, H., 2006, In: Diabetologia. 49, 9, p. 2058-2067 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  76. Published

    Weight change og change in weight trend. Differences in analytical approaches

    Olivarius, Niels de Fine & Siersma, Volkert Dirk, 2007, In: Diabetes, Obesity and Metabolism. 9, p. 915-916 1 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  77. Published

    Vægtforløbet og betydningen af antidiabetisk behandling de første fem år efter diabetesdiagnosen - sekundærpublikation

    Olivarius, Niels de Fine, Andreasen, A. H., Siersma, Volkert Dirk, Richelsen, B. & Beck-Nielsen, H., 2006, In: Ugeskrift for læger. 168/45, p. 3913-3916

    Research output: Contribution to journal › Journal article › Research › peer-review

  78. Published

    Predictors of mortality of patients newly diagnosed with clinical type 2 diabetes: a 5-year follow up study

    Olivarius, Niels de Fine, Siersma, Volkert Dirk, Nielsen, Anni Brit Sternhagen, Hansen, L. J., Rosenvinge, L. & Mogensen, C. E., 1 Jan 2010, In: B M C Endocrine Disorders. 10, p. 14

    Research output: Contribution to journal › Journal article › Research › peer-review

  79. Published

    Patients newly diagnosed with clinical type 2 diabetes during oral glucocorticoid treatment and observed for 14 years: all-cause mortality and clinical developments

    Olivarius, Niels de Fine, Siersma, Volkert Dirk, Dyring-Andersen, B., Drivsholm, Thomas, Hansen, Lars J & Henriksen, J. E., Apr 2011, In: Basic & Clinical Pharmacology & Toxicology. 108, 4, p. 285-288 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  80. Published

    Mental well-being during stages of COVID-19 lockdown among pregnant women and new mothers

    Overbeck, Gritt, Rasmussen, Ida Scheel, Siersma, Volkert Dirk, Kragstrup, Jakob, Ertmann, Ruth Kirk & Wilson, Philip Michael John, 2022, In: BMC Pregnancy and Childbirth. 22, 1, 7 p., 92.

    Research output: Contribution to journal › Journal article › Research › peer-review

  81. Published

    Family wellbeing in general practice: a study protocol for a cluster-randomised trial of the web-based resilience programme on early child development

    Overbeck, Gritt, Kragstrup, Jakob, Gørtz, Mette, Rasmussen, Ida Scheel, mxb897, mxb897, Siersma, Volkert Dirk, de Voss, Sarah Strøyer, Ertmann, Ruth Kirk, Shahrzad, S., Appel, Clara Lundmark & Wilson, Philip Michael John, 2023, In: Trials. 24, 1, 12 p., 7.

    Research output: Contribution to journal › Journal article › Research › peer-review

  82. Published

    Depression and anxiety symptoms in pregnant women in Denmark during COVID-19

    Overbeck, Gritt, Andersen, Julie Høgsgaard, mxb897, mxb897, Rasmussen, Ida Scheel, Kragstrup, Jakob, Siersma, Volkert Dirk, Wilson, Philip Michael John & Ertmann, Ruth Kirk, 2021, In: Scandinavian Journal of Public Health. 49, 7, p. 721-729 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  83. Published

    Age-related prevalence and clinical significance of neutropenia - isolated or combined with other cytopenias: Real world data from 373 820 primary care individuals

    Palmblad, J., Siersma, Volkert Dirk, Lind, B., Bjerrum, O. W., Hasselbalch, Hans Carl & Andersen, Christen Bertel L, 2020, In: American Journal of Hematology. 95, 5, p. 521-528 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  84. Published

    Real-world outcomes for a complete nationwide cohort of more than 3200 teriflunomide-treated multiple sclerosis patients in The Danish Multiple Sclerosis Registry

    Papp, V., Buron, M. D., Siersma, Volkert Dirk, Rasmussen, P. V., Illes, Z., Kant, M., Hilt, C., Mezei, Z., Roshanisefat, H., Sejbaek, T., Weglewski, Arkadiusz, van Wingerden, J., Geertsen, S. S., Bramow, S., Sellebjerg, Finn Thorup & Magyari, M., 2021, In: PLoS ONE. 16, 5, 16 p., 0250820.

    Research output: Contribution to journal › Journal article › Research › peer-review

  85. Published

    Dementia and road traffic accidents among non-institutionalized older people in Denmark: A Danish register-based nested case-control study

    Petersen, Jindong Ding, Siersma, Volkert Dirk, Christensen, R. D., Storsveen, M. M., Nielsen, C. T., Vass, Mikkel & Waldorff, Frans Boch, 2019, In: Scandinavian Journal of Public Health. 47, 2, p. 221-228 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  86. Published

    Clinical management of hip fractures in elderly patients with dementia and postoperative 30-day mortality: A population-based cohort study

    Petersen, Jindong Ding, Siersma, Volkert Dirk, Wehberg, S., Nielsen, C. T., Viberg, B. & Waldorff, Frans Boch, 2020, In: Brain and Behavior. 10, 11, 10 p., e01823.

    Research output: Contribution to journal › Journal article › Research › peer-review

  87. Published

    Dementia and traffic accidents: a Danish register-based cohort study

    Petersen, Jindong Ding, Siersma, Volkert Dirk, Nielsen, C., Vass, Mikkel & Waldorff, Frans Boch, 2016, In: JMIR Research Protocols. 5, 3, p. e191

    Research output: Contribution to journal › Journal article › Research › peer-review

  88. Published

    Major depressive symptoms increase 3-year mortality rate in patients with mild dementia

    Petersen, Jindong Ding, Waldorff, Frans Boch, Siersma, Volkert Dirk, Phung, T. K. T., Bebe, Anna & Waldemar, Gunhild, 6 Apr 2017, In: International Journal of Alzheimer's Disease. 2017, p. 1-9 9 p., 7482094.

    Research output: Contribution to journal › Journal article › Research › peer-review

  89. Published

    The risk of fall accidents for home dwellers with dementia—A register- and population-based case-control study

    Petersen, Jindong Ding, Siersma, Volkert Dirk, Christensen, R. D. P., Storsveen, M. M., Nielsen, C. T. & Waldorff, Frans Boch, 2018, In: Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring. 10, p. 421-428 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  90. Published

    Changes in leisure time physical activity unrelated to subsequent body weight changes, but body weight changes predicted future activity

    Petersen, Jindong Ding, Siersma, Volkert Dirk, Andersen, M. K. K. & Heitmann, Berit, 2022, In: Journal of Sports Sciences. 40, 3, p. 288-298 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  91. Published

    A three-year follow-up on the efficacy of psychosocial interventions for patients with mild dementia and their caregivers: the multicentre, rater-blinded, randomized Danish Alzheimer Intervention Study (DAISY).

    Phung, K. T. T., Waldorff, Frans Boch, Buss, D. V., Eckermann, A., Keiding, N., Rishøj, S., Siersma, Volkert Dirk, Sørensen, J., Søgaard, R., Sørensen, L. V., Vogel, Asmus & Waldemar, Gunhild, 2013, In: B M J Open. 3, 11

    Research output: Contribution to journal › Journal article › Research › peer-review

  92. Published

    Self-rated versus Caregiver-rated Health for Patients with Mild Dementia as Predictors of Patient Mortality

    Phung, T. K. T., Siersma, Volkert Dirk, Vogel, Asmus, Waldorff, Frans Boch & Waldemar, Gunhild, 2018, In: American Journal of Geriatric Psychiatry. 26, 3, p. 375-385 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  93. Published

    Diabetic foot disease: impact of ulcer location on ulcer healing.

    Pickwell, K., Siersma, Volkert Dirk, Kars, M., Holstein, P. & Schaper, N., 2013, In: Diabetes - Metabolism: Research and Reviews (Online). 29, 5, p. 377-387

    Research output: Contribution to journal › Journal article › Research › peer-review

  94. Published

    Minor amputation does not negatively affect health-related quality of life as compared with conservative treatment in patients with a diabetic foot ulcer: An observational study

    Pickwell, K., Siersma, Volkert Dirk, Kars, M., Apelqvist, J., Bakker, K., Edmonds, M., Holstein, P., Jirkovska, A., Jude, E., Mauricio, D., Piaggesi, A., Reike, H., Spraul, M., Uccioli, L., Urbancic, V., Acker, K. V., Baal, J. V. & Schaper, N., Mar 2017, In: Diabetes - Metabolism: Research and Reviews (Print Edition). 33, 3, 6 p., e2867.

    Research output: Contribution to journal › Journal article › Research › peer-review

  95. Published

    Predictors of lower-extremity amputation in patients with an infected diabetic foot ulcer

    Pickwell, K., Siersma, Volkert Dirk, Kars, M., Apelqvist, J., Bakker, K., Edmonds, M., Holstein, P., Jirkovska, A., Jude, E., Mauricio, D., Piaggesi, A., Ragnarson Tennvall, G., Reike, H., Spraul, M., Uccioli, L., Urbancic, V., van Acker, K., van Baal, J. & Schaper, N., May 2015, In: Diabetes Care. 38, 5, p. 852-857 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  96. Published

    Educational intervention and functional decline among older people: The modifying effects of social capital

    Poulsen, T., Siersma, Volkert Dirk, Lund, Rikke, Christensen, Ulla, Vass, Mikkel & Avlund, K., May 2014, In: Scandinavian Journal of Public Health. 42, 3, p. 295-303 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  97. Published

    Impact of Social Capital on 8-year Mortality Among Older People in 34 Danish Municipalities

    Poulsen, T., Siersma, Volkert Dirk, Christensen, Ulla, Lund, Rikke, Vass, Mikkel & Avlund, K., 2012, In: Journal of Aging and Health. 24, p. 1202-1222 20 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  98. Published

    The development of multimorbidity during 16 years after diagnosis of type 2 diabetes

    Pouplier, S., Olsen, M. Å., Willadsen, Tora Grauers, Sandholdt, H., Siersma, Volkert Dirk, Andersen, Christen Bertel L & Olivarius, Niels de Fine, 2018, In: Journal of Comorbidity. 8, 1, p. 1-9 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  99. Published

    Subjective memory complaints and future depression in primary care patients: A four-year follow-up study

    Quaade, A. S., Davidsen, Annette Sofie, Siersma, Volkert Dirk, Waldemar, Gunhild & Waldorff, Frans Boch, 1 Nov 2018, In: General Hospital Psychiatry. 55, p. 4-9 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  100. Published

    Multimorbidity in patients with low back pain in Danish chiropractic practice: a cohort study

    Rafn, B. S., Hartvigsen, J., Siersma, Volkert Dirk & Andersen, John Sahl, 2023, In: Chiropractic and Manual Therapies. 31, 1, 11 p., 8.

    Research output: Contribution to journal › Journal article › Research › peer-review

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