Volkert Dirk Siersma

Volkert Dirk Siersma

!!Statistiker, External Lecturer

ORCID: 0000-0003-1941-2681

Publication year:
All
201 - 300 out of 380Page size: 100
  1. 2017
  2. Published

    Accreditation in general practice in Denmark: study protocol for a cluster-randomized controlled trial

    Andersen, M. K., Pedersen, L. B., Siersma, Volkert Dirk, Bro, F., Reventlow, Susanne, Søndergaard, J., Kousgaard, Marius Brostrøm & Waldorff, Frans Boch, 13 Feb 2017, In: Trials. 18, p. 1-9 9 p., 69.

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

  3. Published

    Health-Related Quality-of-Life in patients with chronic rheumatic disease after a multidisciplinary rehabilitation regimen

    Couppé, C., Comins, J., Beyer, N., Hansen, S. E., Stodolsky, D. S. & Siersma, Volkert Dirk, Feb 2017, In: Quality of Life Research. 26, 2, p. 381–391 11 p.

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

  4. Published

    Quality of life following trauma before and after implementation of a physician-staffed helicopter

    Funder, K. S., Rasmussen, L. S., Hesselfeldt, R., Siersma, Volkert Dirk, Lohse, N., Sonne, A., Wulffeld, S. & Steinmetz, J., Jan 2017, In: Acta Anaesthesiologica Scandinavica. 61, 1, p. 111-120

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

  5. Published

    Clinical indications for antibiotic use in Danish general practice: results from a nationwide electronic prescription database

    Aabenhus, Rune Munck, Hansen, M. P., Siersma, Volkert Dirk & Bjerrum, Lars, 2017, In: Scandinavian Journal of Primary Health Care. 35, 2, p. 162-169 8 p.

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

  6. Published

    Diagnosing Urinary Tract Infection in General Practice

    Holm, Anne, Jessen, Lisbeth Rem, Frimodt-Møller, N., Siersma, Volkert Dirk & Bjerrum, Lars, 2017

    Research output: Book/Report › Ph.D. thesis › Research

  7. Published

    Full journal publication of abstracts presented at the Nordic Congress of General Practice in 2009 and 2011

    Waldorff, Frans Boch, Petersen, K., Vinther, S., Sandholdt, H., Siersma, Volkert Dirk & Andersen, John Sahl, 2017, In: Scandinavian Journal of Primary Health Care. 35, 1, p. 84-88 5 p.

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

  8. Published

    Social disparities in diabetes care: a general population study in Denmark

    Heltberg, Andreas Søndergaard, Andersen, John Sahl, Kragstrup, Jakob, Siersma, Volkert Dirk, Sandholdt, H. & Ellervik, Christina, 2017, In: Scandinavian Journal of Primary Health Care. 35, 1, p. 54–63 10 p.

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

  9. 2016
  10. Published

    Effects of numerical information on intention to participate in cervical screening among women offered HPV vaccination: a randomised study

    Hestbech, Mie Sara, Gyrd-Hansen, D., Kragstrup, Jakob, Siersma, Volkert Dirk & Brodersen, John Brandt, 15 Nov 2016, In: Scandinavian Journal of Primary Health Care. 34, 4, p. 401-419 19 p.

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

  11. 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

  12. Published

    Cerebrospinal Fluid Amyloid Beta and Tau Concentrations Are Not Modulated by 16 Weeks of Moderate- to High-Intensity Physical Exercise in Patients with Alzheimer Disease

    Jensen, C. S., Portelius, E., Siersma, Volkert Dirk, Høgh, Peter, Wermuth, L., Blennow, K., Zetterberg, H., Waldemar, Gunhild, Hasselbalch, Steen & Simonsen, A. H., Oct 2016, In: Dementia and Geriatric Cognitive Disorders. 42, 3-4, p. 146-158 13 p.

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

  13. Published

    Effect of Total Dose of Lidocaine on Duration of Adductor Canal Block, Assessed by Different Test Methods: A Report of Two Blinded, Randomized, Crossover Studies in Healthy Volunteers

    Jæger, P., Koscielniak-Nielsen, Z. J., Hilsted, K. L., Grevstad, U., Siersma, Volkert Dirk, Fabritius, M. L. & Dahl, J. B., Oct 2016, In: Anesthesia and Analgesia. 123, 4, p. 1026-1032 7 p.

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

  14. 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

  15. Published

    How does HPV vaccination status relate to risk perceptions and intention to participate in cervical screening? a survey study

    Hestbech, Mie Sara, Gyrd-Hansen, D., Kragstrup, Jakob, Siersma, Volkert Dirk & Brodersen, John Brandt, 3 Aug 2016, In: BMC Public Health. 16, p. 1-11 11 p., 708.

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

  16. Published

    Antibiotic prescribing in Danish general practice 2004-13

    Aabenhus, Rune Munck, Siersma, Volkert Dirk, Hansen, M. P. & Bjerrum, Lars, Aug 2016, In: Journal of Antimicrobial Chemotherapy. 71, 8, p. 2286-2294 9 p.

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

  17. Published

    The role of the anterolateral ligament in ACL insufficient and reconstructed knees on rotary stability: A biomechanical study on human cadavers

    Tavlo, M., Eljaja, S., Tranum-Jensen, Jørgen, Siersma, Volkert Dirk & Krogsgaard, Michael R., Aug 2016, In: Scandinavian Journal of Medicine & Science in Sports. 26, 8, p. 960-966

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

  18. Published

    Perioperative hyperoxia - Long-term impact on cardiovascular complications after abdominal surgery, a post hoc analysis of the PROXI trial

    Fonnes, S., Gogenur, I., Sondergaard, E. S., Siersma, Volkert Dirk, Jørgensen, Lars Nannestad, Wetterslev, J. & Meyhoff, Christian Sylvest, 15 Jul 2016, In: International Journal of Cardiology. 215, p. 238-243

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

  19. 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

  20. Published

    Associations between plasma concentrations of PCB 28 and possible indoor exposure sources in Danish school children and mothers

    Egsmose, E. L., Bräuner, E. V., Frederiksen, M., Mørck, T. A., Siersma, Volkert Dirk, Hansen, P. W., Nielsen, F., Grandjean, P. & Knudsen, Lisbeth E., Feb 2016, In: Environment International. 87, p. 13-19 7 p.

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

  21. Published

    Maternal pain influences her evaluation of recurrent pain in 6- to 11-year-old healthy children

    mxb897, mxb897, Siersma, Volkert Dirk, Nielsen, Kirsten Lykke, Ertmann, Ruth Kirk, Knudsen, Lisbeth E. & Mäkelä, Marjukka, Feb 2016, In: Acta Paediatrica. 105, 2, p. 183-190 8 p.

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

  22. 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

  23. 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

  24. Published

    Long-term follow-up of trauma patients before and after implementation of a Physician-Staffed Helicopter: a prospective observational study

    Funder, K. S., Rasmussen, L. S., Lohse, N., Siersma, Volkert Dirk, Hesselfeldt, R. & Steinmetz, Jacob, Jan 2016, In: Injury. 47, 1, p. 7-13 7 p.

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

  25. 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

  26. 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

  27. Published

    Effect of aerobic exercise on physical performance in patients with Alzheimer’s disease

    Sobol, N. A., Hoffmann, K., Frederiksen, K. S., Vogel, A., Vestergaard, K., Brændgaard, H., Gottrup, H., Lolk, A., Wermuth, L., Jakobsen, S., Laugesen, L., Gergelyffy, R., Høgh, P., Bjerregaard, E., Siersma, Volkert Dirk, Andersen, B. B., Johannsen, P., Waldemar, G., Hasselbalch, S. G. & Beyer, N., 2016, In: Alzheimer's & Dementia. 12, 12, p. 1207–1215 9 p.

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

  28. 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

  29. 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

  30. Published

    Moderate-to-high intensity physical exercise in patients with Alzheimer’s disease: a randomised controlled trial.

    Hoffmann, K., Sobol, N. A., Frederiksen, K. S., Beyer, N. A-M., Vogel, A. M., Vestergaard, K., Brændgaard, H., Gottrup, H., Lolk, A., Wermuth, L., Jacobsen, S., Laugesen, L. P., Gergelyffy, R. G., Høgh, P., Bjerregaard, E., Andersen, B. B., Siersma, V. D., Johannsen, P., Cotman, C. W., Waldemar, G. & 1 others, Hasselbalch, Steen, 2016, In: Journal of Alzheimer's Disease. 50, 2, p. 443-453 11 p.

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

  31. Published

    OP0006-HPR Even in The Long Run Nordic Walking Is Superior To Strength Training and Home Based Exercise for Improving Physical Function in Older People with Hip Osteoarthritis - An RCT

    Bieler, T., Siersma, Volkert Dirk, Magnusson, Stig Peter, Kjær, M. & Beyer, N., 2016, In: Annals of the Rheumatic Diseases. 75, p. 55 1 p.

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

  32. 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

  33. Published

    Prevalence and clinical significance of neutropenia discovered in routine complete blood cell counts: a longitudinal study

    Andersen, Christen Bertel L, Tesfa, D., Siersma, Volkert Dirk, Sandholdt, H., Hasselbalch, H., Bjerrum, O. W., Felding, P., Lind, B., Olivarius, Niels de Fine & Palmblad, J., 2016, In: Journal of Internal Medicine. 279, 6, p. 566-575

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

  34. Published

    The Potential of The Copenhagen Primary Care Laboratory (CopLab) Database

    Andersen, Christen Bertel L, Siersma, Volkert Dirk & Olivarius, Niels de Fine, 2016.

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

  35. 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

  36. 2015
  37. Published

    Alcohol consumption and mortality in patients with mild Alzheimer's disease: a prospective cohort study

    Berntsen, S., Kragstrup, Jakob, Siersma, Volkert Dirk, Waldemar, Gunhild & Waldorff, Frans Boch, 11 Dec 2015, In: B M J Open. 5, 12, p. 1-7 7 p., e007851.

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

  38. 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

  39. 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

  40. 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

  41. Published

    Is thrombocytosis a valid indicator of advanced stage and high mortality of gynecological cancer?

    Andersen, Christen Bertel L, Eskelund, C. W., Siersma, Volkert Dirk, Felding, P., Lind, B., Palmblad, J., Bjerrum, O. W., Friis, S., Hasselbalch, H. C. & Olivarius, Niels de Fine, Nov 2015, In: Gynecologic Oncology. 139, 2, p. 312-318 7 p.

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

  42. Published

    The impact of HPV vaccination on future cervical screening: a simulation study of two birth cohorts in Denmark

    Hestbech, Mie Sara, Lynge, Elsebeth, Kragstrup, Jakob, Siersma, Volkert Dirk, Vazquez-Prada Baillet, M. & Brodersen, John Brandt, 14 Aug 2015, In: B M J Open. 5, 8, p. 1-7 7 p., e007921.

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

  43. Published

    Increased health care utilisation in international adoptees

    Graff, H. J., Siersma, Volkert Dirk, Kragstrup, Jakob & Petersson, B., Aug 2015, In: Danish Medical Journal. 62, 8, p. 1-6 6 p., A5111.

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

  44. 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

  45. 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

  46. 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

  47. Published

    Diagnostic Invasiveness and Psychosocial Consequences of False-Positive Mammography

    Heleno, B. M., Siersma, Volkert Dirk & Brodersen, John Brandt, May 2015, In: Annals of Family Medicine. 13, 3, p. 242-249 8 p.

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

  48. 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

  49. Published

    Waiting time and the psychosocial consequences of false-positive mammography: cohort study.

    Heleno, B. M., Siersma, Volkert Dirk & Brodersen, John Brandt, 30 Apr 2015, In: Journal of Negative Results in BioMedicine. 14, 8, p. 1-4 4 p.

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

  50. 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

  51. Published

    Urinary markers of nucleic acid oxidation and cancer in type 2 diabetes

    Broedbaek, K., Siersma, Volkert Dirk, Henriksen, T. F., Weimann, A., Petersen, M., Andersen, J. T., Solem, E. V. J., Hansen, Lars J, Henriksen, J. E., Bonnema, S. J., Olivarius, Niels de Fine, Friis, S. & Poulsen, Henrik Enghusen, Apr 2015, In: Redox Biology. 4, p. 34-39 6 p.

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

  52. Published

    Association of the blood eosinophil count with hematological malignancies and mortality

    Andersen, Christen Bertel L, Siersma, Volkert Dirk, Hasselbalch, Hans Carl, Vestergaard, H., Mesa, R., Felding, P., Olivarius, Niels de Fine & Bjerrum, O. W., Mar 2015, In: American Journal of Hematology. 90, 3, p. 225-229 5 p.

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

  53. Published

    Follicular lymphoma of the ocular adnexal region: A nation-based study

    Rasmussen, P. K., Ralfkiaer, E., Prause, J. U., Sjö, Lene Dissing, Specht, Lena, Rossing, H. H., Siersma, Volkert Dirk & Heegaard, Steffen, Mar 2015, In: Acta Ophthalmologica. 93, 2, p. 184-191 8 p.

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

  54. 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

  55. Published

    The effectiveness of computer reminders versus postal reminders for improving quality assessment for point-of-care testing in primary care: a randomized controlled trial

    Siersma, Volkert Dirk, Kousgaard, Marius Brostrøm, Reventlow, Susanne, Ertmann, Ruth Kirk, Felding, P. & Waldorff, Frans Boch, Feb 2015, In: Journal of Evaluation in Clinical Practice. 21, 1, p. 13-20 8 p.

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

  56. Published

    Prescribing style and variation in antibiotic prescriptions for sore throat: cross-sectional study across six countries

    Cordoba Currea, Gloria Cristina, Siersma, Volkert Dirk, Lopez-Valcarcel, B. G., Bjerrum, Lars, Llor, C., Aabenhus, Rune Munck & Mäkelä, Marjukka, 29 Jan 2015, In: B M C Family Practice. 16, p. 1-8 8 p., 7.

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

  57. Published

    Psychosocial consequences in the Danish randomised controlled lung cancer screening trial (DLCST)

    F. Rasmussen, J., Siersma, Volkert Dirk, H. Pedersen, J. & Brodersen, John Brandt, Jan 2015, In: Lung Cancer. 87, 1, p. 65-72 8 p.

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

  58. Published

    An intervention with access to C-reactive protein rapid test reduces antibiotic overprescribing in acute exacerbations of chronic bronchitis and COPD

    F. Strykowski, D., Nielsen, Anni Brit Sternhagen, Llor, C., Siersma, Volkert Dirk & Bjerrum, Lars, 2015, In: Family Practice. 32, 4, p. 395-400 6 p.

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

  59. Published

    Author Reply to Dr. Arleo and to Dr Newell

    Heleno, B. M., Siersma, Volkert Dirk & Brodersen, John Brandt, 2015, In: Annals of Family Medicine.

    Research output: Contribution to journal › Comment/debate › Research

  60. Published

    Comparing the effect of non-medical mechanical restraint preventive factors between psychiatric units in Denmark and Norway.

    Bak, J., Zoffmann, Vibeke, Sestoft, D. M., Almvik, R., Siersma, Volkert Dirk & Brandt-Christensen, M., 2015, In: Nordic Journal of Psychiatry. 69, 6, p. 1715-1725 11 p.

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

  61. Published

    Inappropriate antibiotic prescribing and demand for antibiotics in patients with upper respiratory tract infections is hardly different in female versus male patients as seen in primary care

    Bagger, K., Nielsen, Anni Brit Sternhagen, Siersma, Volkert Dirk & Bjerrum, Lars, 2015, In: The European Journal of General Practice. 21, 2, p. 118-123 6 p.

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

  62. Published

    Increased healing in diabetic toe ulcers in a multidisciplinary foot clinic—An observational cohort study

    Almdal, Thomas Peter, Nielsen, A. A., Nielsen, K. E., Jørgensen, M. E., Rasmussen, A., Hangaard, S., Siersma, Volkert Dirk & Holstein, P., 2015, In: Diabetes Research and Clinical Practice. 110, 3, p. 315-321 7 p.

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

  63. Published

    Optimal volume of local anaesthetic for the adductor canal block: Using the continual reassessment method to estimate the ED95

    Jæger, P., Jenstrup, M. T., Lund, J., Siersma, Volkert Dirk, Brøndum, V., Hilsted, K. L. & Dahl, J. B., 2015, In: British Journal of Anaesthesia. 115, 6, p. 920-926 7 p.

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

  64. 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

  65. Published

    Point of care susceptibility testing in primary care: does it lead to a more appropriate prescription of antibiotics in patients with uncomplicated urinary tract infections? Protocol for a randomized controlled trial

    Holm, Anne, Cordoba Currea, Gloria Cristina, Sørensen, Tina Møller, Jessen, Lisbeth Rem, Siersma, Volkert Dirk & Bjerrum, Lars, 2015, In: B M C Family Practice. 16, 8 p., 106.

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

  66. Published

    The impact of patients' involvement in cooking on their mortality and morbidity: A 19-year follow-up of patients newly diagnosed with type 2 diabetes mellitus.

    Jandorf, S., Siersma, Volkert Dirk, Køster-Rasmussen, Rasmus, Olivarius, Niels de Fine & Waldorff, Frans Boch, 2015, In: Scandinavian Journal of Primary Health Care. 33, 1, p. 33-39 7 p.

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

  67. 2014
  68. Published

    Motivation, effort and life circumstances as predictors of foot ulcers and amputations in people with Type 2 diabetes mellitus

    Bruun, C., Guassora, Ann Dorrit, Nielsen, Anni Brit Sternhagen, Siersma, Volkert Dirk, Holstein, P. E. & Olivarius, Niels de Fine, 14 Jul 2014, In: Diabetic Medicine. 31, 11, p. 1468-76 9 p.

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

  69. 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

  70. 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

  71. 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

  72. Published

    Health-Related Quality of Life Predicts Major Amputation and Death, but Not Healing, in People With Diabetes Presenting With Foot Ulcers: The Eurodiale Study

    Siersma, Volkert Dirk, Thorsen, Hanne, Holstein, P. E., Kars, M., Apelqvist, J., Jude, E. B., Piaggesi, A., Bakker, K., Edmonds, M., Jirkovska, A., Mauricio, D., Ragnarson Tennvall, G., Reike, H., Spraul, M., Uccioli, L., Urbancic, V., Acker, K., Baal, K. & Schaper, N. C., Mar 2014, In: Diabetes Care. 37, 3, p. 694-700 7 p.

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

  73. Published

    Healthcare costs in the Danish randomised controlled lung cancer CT-screening trial: A registry study

    Rasmussen, J. F., Siersma, Volkert Dirk, Pedersen, J. H., Heleno, B., Saghir, Z. & Brodersen, John Brandt, Mar 2014, In: Lung Cancer. 83, 3, p. 347-355 9 p.

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

  74. Published

    Association of Maternal Self-Medication and Over-the-Counter Analgesics for Children

    Jensen, J. F., Gottschau, M., Siersma, Volkert Dirk, mxb897, mxb897, Holstein, B. E. & Knudsen, Lisbeth E., 1 Feb 2014, In: Pediatrics. 133, 2, p. e291-8 8 p.

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

  75. Published

    Eosinophilia in routine blood samples as a biomarker for solid tumor development: A study based on The Copenhagen Primary Care Differential Count (CopDiff) Database

    Andersen, Christen Bertel L, Siersma, Volkert Dirk, Hasselbalch, H. C., Lindegaard, H., Vestergaard, H., Felding, P., Olivarius, Niels de Fine & Bjerrum, O. W., 2014, In: Acta Oncologica. 53, 9, p. 1245-1250 6 p.

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

  76. 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

  77. 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

  78. Published

    Risk of Lymphoma and Solid Cancer among Patients with Rheumatoid Arthritis in a Primary Care Setting

    Andersen, Christen Bertel L, Lindegaard, H. M., Vestergaard, H., Siersma, Volkert Dirk, Hasselbalch, H. C., Olivarius, Niels de Fine, Bjerrum, O. W. & Junker, P., 2014, In: PLOS ONE. 9, 6, p. 1-7 7 p., e99388.

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

  79. 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

  80. Published

    The Copenhagen primary care differential count (CopDiff) database

    Andersen, Christen Bertel L, Siersma, Volkert Dirk, Karlslund, W., Hasselbalch, H. C., Felding, P., Bjerrum, O. W. & Olivarius, Niels de Fine, 2014, In: Clinical Epidemiology. 6, p. 199-211 13 p.

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

  81. Published

    The effectiveness of a semi-tailored facilitator-based intervention to optimise chronic care management in general practice: A randomised controlled trial

    Due, Tina Drud, Thorsen, Thorkil, Kousgaard, Marius Brostrøm, Siersma, Volkert Dirk & Waldorff, Frans Boch, 2014, In: BMC Family Practice. 15, p. 1-12 12 p., 65.

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

  82. 2013
  83. Published

    Reply to Consedine

    Brodersen, John Brandt & Siersma, Volkert Dirk, 13 Sep 2013

    Research output: Other contribution › Net publication - Internet publication › Research

  84. Published

    Reply to DeFrank and Brewer

    Brodersen, John Brandt & Siersma, Volkert Dirk, 2 Sep 2013

    Research output: Other contribution › Net publication - Internet publication › Research

  85. 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

  86. Published

    Subjective memory complaints in primary care patients and death from all causes: a four-year follow-up

    Siersma, Volkert Dirk, Waldemar, Gunhild & Waldorff, Frans Boch, Mar 2013, In: Scandinavian Journal of Primary Health Care. 31, 1, p. 7-12

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

  87. Published

    Hovedparten af syge børn får paracetamol i løbet af en vinterperiode

    Ertmann, Ruth Kirk, Møller, J. J., Waldorff, Frans Boch, Siersma, Volkert Dirk, Reventlow, Susanne & Söderström, M., 14 Jan 2013, In: Ugeskrift for Laeger. 175, 3, p. 130 1 p.

    Research output: Contribution to journal › Journal article › Research

  88. 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

  89. Published

    Amputations and foot ulcers in patients newly diagnosed with Type 2 diabetes mellitus and observed for 19 years. The role of age, gender and co-morbidity

    Bruun, C., Siersma, Volkert Dirk, Guassora, Ann Dorrit, Holstein, P. & Olivarius, Niels de Fine, 2013, In: Diabetic Medicine Online. 30, p. 964-972 9 p.

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

  90. Published

    Analysis with repeatedly measured binary item response data by ad hoc Rasch scales

    Siersma, Volkert Dirk & Eusebi, P., 2013, Rasch Models in Health. Christensen, K. B., Kreiner, S. & Mesbah, M. (eds.). Wiley, p. 257-275 18 p. (Wiley-ISTE, London).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  91. Published

    Association between urinary markers of nucleic acid oxidation and mortality in type 2 diabetes: a population-based cohort study.

    Brødbæk, K., Siersma, Volkert Dirk, Henriksen, T., Weimann, A., Petersen, M., Andersen, J. T., jiminez-Solem, E., Hansen, Lars J, Henriksen, J. E., Bonnema, S. J., Olivarius, Niels de Fine & Poulsen, Henrik Enghusen, 2013, In: Diabetes Care. 36, p. 669-676 7 p.

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

  92. Published

    Breast cancer screening implementation and reassurance.

    Østerø, J., Siersma, Volkert Dirk & Brodersen, John Brandt, 2013, In: European Journal of Public Health. 24, 2, p. 258-263

    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

    Diffuse large B-cell lymphoma of the ocular adnexal region: A nation-based study

    Rasmussen, P. K., Ralfkiaer, E., Prause, J. U., Sjö, Lene Dissing, Toft, Peter Bjerre, Siersma, Volkert Dirk & Heegaard, Steffen, 2013, In: Acta Ophthalmologica. 91, p. 163-169 7 p.

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

  95. Published

    Eosinophilia in routine blood samples and the subsequent risk of hematological malignancies and death

    Andersen, Christen Bertel L, Siersma, Volkert Dirk, Hasselbalch, H., Lindegaard, H., Vestergaard, H., Felding, P., Olivarius, Niels de Fine & Bjerrum, O. W., 2013, In: American Journal of Hematology. 88, 10, p. 843-847

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

  96. Published

    Family matters: Parental-acquired brain injury and child functioning

    Kieffer-Kristensen, R., Siersma, Volkert Dirk & Teasdale, T. W., 2013, In: NeuroRehabilitation. 32, 1, p. 59-68 10 p.

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

  97. Published

    Health care experiences in infancy and subsequent frequent illness in 1-year old children

    Ertmann, Ruth Kirk, Siersma, Volkert Dirk, Reventlow, Susanne & Söderström, M., 2013, In: Health. 5, 2, p. 259-266 8 p.

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

  98. Published

    Is postoperative cognitive dysfunction a risk factor for dementia?

    Steinmetz, Jacob, Siersma, Volkert Dirk, Kessing, Lars Vedel, Rasmussen, L. S. & Group, T. I., 2013, In: British Journal of Anaesthesia. 110 Suppl, 1, p. i92-i97 6 p.

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

  99. Published

    Lacrimal gland lesions in Denmark between 1974 and 2007

    von Holstein, Sarah Linea, Therkildsen, M. H., Prause, J. U., Stenman, G., Siersma, Volkert Dirk & Heegaard, Steffen, 2013, In: Acta Ophthalmologica. 91, 4, p. 349-354 5 p.

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

  100. Published

    Long-term psychosocial consequences of false-positive screening mammography – a cohort study with 3-year follow-up.

    Brodersen, John Brandt & Siersma, Volkert Dirk, 2013, In: Annals of Family Medicine. 11, p. 106-115 9 p.

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

  101. Published

    Marked differences in GPs' diagnosis of pneumonia between Denmark and Spain: a cross-sectional study.

    Christensen, S. F., Jørgensen, L. C., Cordoba Currea, Gloria Cristina, Llor, C., Siersma, Volkert Dirk & Bjerrum, Lars, 2013, In: Primary Care Respiratory Journal. 22, 4, p. 454-458 5 p.

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

  102. 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

  103. Published

    Patients newly diagnosed with clinical type 2 diabetes mellitus but presenting with HbA1c within normal range: 19-year mortality and clinical outcomes

    Veloso, A. G., Siersma, Volkert Dirk, Heldgaard, P. E. & Olivarius, Niels de Fine, 2013, In: Primary Care Diabetes. 7, 1, p. 33-38

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

  104. 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

  105. Published

    Risk factors for 48-hours mortality after prehospital treatment of opioid overdose

    Wichmann, S., Nielsen, S. L., Siersma, Volkert Dirk & Rasmussen, L. S., 2013, In: Emergency Medicine Journal. 30, 3, p. 223-225 3 p.

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

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