Volkert Dirk Siersma

Volkert Dirk Siersma

!!Statistiker, External Lecturer

ORCID: 0000-0003-1941-2681

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  1. Published

    Replik angående screening för bukaortaaneurysm: Dags för oberoende granskning av det svenska screeningprogrammet

    Johansson, M., Zahl, P. H., Siersma, Volkert Dirk, Jørgensen, K. J., Marklund, B. & Brodersen, John Brandt, 2018, In: Lakartidningen. 115, 37, p. 1373 1 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  2. Published

    Benefits and harms of screening men for abdominal aortic aneurysm in Sweden: a registry-based cohort study

    Johansson, M., Zahl, P. H., Siersma, Volkert Dirk, Jørgensen, K. J., Marklund, B. & Brodersen, John Brandt, 2018, In: Lancet Oncology. 391, 10138, p. 2441-2447 7 p.

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

  3. Published

    Screening for abdominal aortic aneurysm - Authors' reply

    Johansson, M., Zahl, P. H., Siersma, Volkert Dirk, Jørgensen, K. J., Marklund, B. & Brodersen, John Brandt, 2019, In: Lancet Oncology. 393, 10166, p. 28 1 p.

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

  4. Published

    Ocular graft-versus-host disease and dry eye disease after paediatric haematopoietic stem cell transplantation - incidence and risk factors

    Jeppesen, H., Kielsen, K., Siersma, Volkert Dirk, Lindegaard, J., Julian, H. O., Heegaard, Steffen, Sengeløv, Henrik & Muller, Klaus, 2022, In: Bone Marrow Transplantation. 57, p. 487–498 12 p.

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

  5. Published

    Prior Antibiotic Use Increases Risk of Urinary Tract Infections Caused by Resistant Escherichia coli among Elderly in Primary Care: A Case-Control Study

    Jensen, Maria Louise Veimer, Siersma, Volkert Dirk, Søes, L. M., Nicolaisdottir, Dagny Ros, Bjerrum, Lars & Holzknecht, Barbara Juliane, 2022, In: Antibiotics. 11, 10, 11 p., 1382.

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

  6. Published

    Sociodemographic characterisation of antibiotic heavy users in the Danish elderly population

    Jensen, Maria Louise Veimer, Aabenhus, Rune Munck, Holzknecht, Barbara Juliane, Bjerrum, Lars, Siersma, Volkert Dirk, Cordoba Currea, Gloria Cristina & Jensen, J. N., 2024, In: Scandinavian Journal of Public Health. 52, 1, p. 51-58 8 p.

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

  7. Published

    Direct and indirect healthcare costs of lung cancer CT screening in Denmark: a registry study

    Jensen, Manja Dahl, Siersma, Volkert Dirk, Rasmussen, J. F. & Brodersen, John Brandt, 2020, In: B M J Open. 10, 1, 11 p., e031768.

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

  8. Published

    Using a Deliberative Poll on breast cancer screening to assess and improve the decision quality of laypeople

    Jensen, Manja Dahl, Hansen, Kasper Møller, Siersma, Volkert Dirk & Brodersen, John Brandt, 2021, In: PLoS ONE. 16, 10 , 21 p., e0258869.

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

  9. 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

  10. Published

    Paracetamol for feverish children: parental motives and experiences

    Jensen, J. F., Tonnesen, L. L., Söderström, M., Thorsen, Hanne & Siersma, Volkert Dirk, 2010, In: Scandinavian Journal of Primary Health Care. 28, 2, p. 115-120 6 p.

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

  11. 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

  12. Published

    Patients with Alzheimer's disease who carry the APOE ε4 allele benefit more from physical exercise

    Jensen, C. S., Simonsen, A. H., Siersma, Volkert Dirk, Beyer, N., Frederiksen, K. S., Gottrup, H., Hoffman, K., Høgh, Peter, Frikke-Schmidt, Ruth, Sobol, N. A., Waldemar, Gunhild, Wermuth, L. & Hasselbalch, Steen, 2019, In: Alzheimer's and Dementia: Translational Research and Clinical Interventions. 5, 1, p. 99-106 8 p.

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

  13. Published

    The impact of influences in a medical screening programme invitation: a randomized controlled trial

    Jauernik, Christian Patrick, Rahbek, O. J., Ploug, T., Siersma, Volkert Dirk & Brodersen, John Brandt, 2023, In: European Journal of Public Health. 33, 3, 6 p.

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

  14. 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

  15. Published

    Predictors of visual outcome in patients operated for craniopharyngioma - a Danish national study

    Jacobsen, M. F., Thomsen, A. S. S., Bach-Holm, Daniella, Doroudian, G., Nissen, K. R., Fugleholm, Kåre, Poulsgaard, L., Siersma, Volkert Dirk & Heegaard, Steffen, Feb 2018, In: Acta Ophthalmologica. 96, 1, p. 39-45

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

  16. Published

    Defining the surgical footprint in cataract surgery: patient-related outcomes dependent on the experience of the surgeon

    Jacobsen, M. F., Holm, Lars Morten, Erichsen, J. H., Konge, Lars, Siersma, Volkert Dirk, la Cour, Morten & Thomsen, Ann Sofia Skou, 2021, In: Acta Ophthalmologica. 99, 7, p. e999-e1005 7 p.

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

  17. Published

    The feasibility of C-reactive protein point-of-care testing to reduce overuse of antibiotics in children with acute respiratory tract infections in rural Kyrgyzstan: A Pilot Study

    Isaeva, E., Akylbekov, A., Bloch, J., Poulsen, A., Kurtzhals, Jørgen, Siersma, Volkert Dirk, Sooronbaev, T., Aabenhus, Rune Munck & Kjærgaard, J., 2024, In: Pediatric health, medicine and therapeutics. 15, p. 67-76 10 p.

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

  18. Published

    C reactive protein-guided prescription of antibiotics for children under 12 years with respiratory symptoms in Kyrgyzstan: protocol for a randomised controlled clinical trial with 14 days follow-up

    Isaeva, E., Bloch, J., Poulsen, A., Kurtzhals, Jørgen, Reventlow, Susanne, Siersma, Volkert Dirk, Akylbekov, A., Sooronbaev, T., Aabenhus, Rune Munck & Kjærgaard, J., 2023, In: BMJ Open. 13, 4, 6 p., e066806.

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

  19. Published

    Sampling of urine for diagnosing urinary tract infection in general practice–First-void or mid-stream urine?

    Hølmkjær, Pernille, Bjerrum, Lars, Mäkelä, Marjukka, Siersma, Volkert Dirk & Holm, Anne, 2019, In: Scandinavian Journal of Primary Health Care. 37, 1, p. 113-119 7 p.

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

  20. Published

    Management of dyslipidaemia in individuals with severe mental illness: a population-based study in the Greater Copenhagen Area

    Høgnason Mohr, G., Barcella, C. A., Grand, Mia Klinten, Kriegbaum, Margit, Siersma, Volkert Dirk, Hahn, M. K., Agarwal, S. M., Bakkedal, Catrine, Baandrup, Lone, Knop, Filip Krag, Andersen, C. L. & Ebdrup, Bjørn, 2023, In: Therapeutic Advances in Psychopharmacology. 13, 13 p.

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

  21. Published

    Effects of Implementing the Short-Term Assessment of Risk and Treatability for Mechanical Restraint in a Forensic Male Population: A Stepped-Wedge, Cluster-Randomized Design

    Hvidhjelm, J., Brandt-Christensen, M., Delcomyn, C., Møllerhøj, J., Siersma, Volkert Dirk & Bak, J., 2022, In: Frontiers in Psychiatry. 13, 9 p., 822295.

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

  22. 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

  23. Published

    Availability of point-of-care culture and microscopy in general practice - does it lead to more appropriate use of antibiotics in patients with suspected urinary tract infection?

    Holm, Anne, Siersma, Volkert Dirk, Bjerrum, Lars & Cordoba Currea, Gloria Cristina, Dec 2020, In: The European Journal of General Practice. 26, 1, p. 175-181 7 p.

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

  24. Published

    Clinical accuracy of point-of-care urine culture in general practice

    Holm, Anne, Cordoba Currea, Gloria Cristina, Sørensen, Tina Møller, Jessen, Lisbeth Rem, Frimodt-Møller, N., Siersma, Volkert Dirk & Bjerrum, Lars, Jun 2017, In: Scandinavian Journal of Primary Health Care. 35, 2, p. 170-177 8 p.

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

  25. Published

    Effectiveness of an adaptive, multifaceted intervention to enhance care for patients with complex multimorbidity in general practice: protocol for a pragmatic cluster randomised controlled trial (the MM600 trial)

    Holm, Anne, Lyhnebeck, A. B., Rozing, Maarten Pieter, Buhl, S. F., Willadsen, Tora Grauers, Prior, A., Christiansen, Ann-Kathrin Lindahl, Kristensen, J., Andersen, John Sahl, Waldorff, Frans Boch, Siersma, Volkert Dirk, Brodersen, John Brandt, Reventlow, Susanne & MM600 project team, M. P. T., 2024, In: BMJ Open. 14, 2, 11 p., e077441.

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

  26. Published

    Diagnosis of urinary tract infection based on symptoms: How are likelihood ratios affected by age? a diagnostic accuracy study

    Holm, Anne, Siersma, Volkert Dirk & Cordoba Currea, Gloria Cristina, 2021, In: BMJ Open. 11, 1, 7 p., e039871.

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

  27. 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

  28. Published

    Effect of point-of-care susceptibility testing in general practice on appropriate prescription of antibiotics for patients with uncomplicated urinary tract infection: a diagnostic randomised controlled trial

    Holm, Anne, Cordoba Currea, Gloria Cristina, Sørensen, Tina Møller, Jessen, Lisbeth Rem, Frimodt-Møller, N., Siersma, Volkert Dirk & Bjerrum, Lars, Oct 2017, In: B M J Open. 7, 10, 9 p., e018028.

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

  29. Published

    Development and validation of a condition-specific diary to measure severity, bothersomeness and impact on daily activities for patients with acute urinary tract infection in primary care

    Holm, Anne, Cordoba Currea, Gloria Cristina, Siersma, Volkert Dirk & Brodersen, John Brandt, 24 Mar 2017, In: Health and Quality of Life Outcomes. 15, p. 1-8 8 p., 57.

    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

    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

  32. 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

  33. 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

  34. Published

    Participation bias in a randomised trial of screening for lung cancer

    Hestbech, Mie Sara, Siersma, Volkert Dirk, Dirksen, A., Pedersen, J. H. & Brodersen, John Brandt, 2011, In: Lung Cancer. 73, 3, p. 325-31 7 p.

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

  35. Published

    Predictors of undiagnosed prevalent type 2 diabetes: The Danish General Suburban Population Study.

    Heltberg, Andreas Søndergaard, Andersen, John Sahl, Sandholdt, H., Siersma, Volkert Dirk, Kragstrup, Jakob & Ellervik, Christina, Feb 2018, In: Primary Care Diabetes. 12, 1, p. 13-22 10 p., 28964672.

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

  36. Published

    Socio-demographic determinants and effect of structured personal diabetes care: a 19-year follow-up of the randomized controlled study diabetes Care in General Practice (DCGP)

    Heltberg, Andreas Søndergaard, Siersma, Volkert Dirk, Andersen, John Sahl, Ellervik, Christina, Brønnum-Hansen, Henrik, Kragstrup, Jakob & Olivarius, Niels de Fine, 8 Dec 2017, In: B M C Endocrine Disorders. 17, p. 1-11 11 p., 75.

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

  37. 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

  38. 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

  39. 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

  40. 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

  41. Published

    Estimation of Overdiagnosis of Lung Cancer in Low-Dose Computed Tomography Screening: A Secondary Analysis of the Danish Lung Cancer Screening Trial

    Heleno, B., Siersma, Volkert Dirk & Brodersen, John Brandt, 2018, In: JAMA Internal Medicine. 178, 10, p. 1420-1422 3 p.

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

  42. Published

    Similar cardiovascular risk factor profile in screen-detected and known type 2 diabetic subjects

    Heldgaard, P. E., Henriksen, J. E., Sidelmann, J. J., Olivarius, Niels de Fine, Siersma, Volkert Dirk & Gram, J. B., Jun 2011, In: Scandinavian Journal of Primary Health Care. 29, 2, p. 85-91 7 p.

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

  43. Published

    Effect of Storage Temperature for B-Type Natriuretic Peptide Concentrations for Primary Healthcare Populations Reply

    Hejl, J. L., Grand, Mia Klinten, Siersma, Volkert Dirk, Goetze, Jens P. , Olivarius, Niels de Fine, Andersen, C. L. & Lind, B., 2019, In: Clinical Chemistry. 65, 6, p. 812-813 2 p.

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

  44. Published

    Brain Natriuretic Peptide in Plasma as Predictor of All-Cause Mortality in a Large Danish Primary Health Care Population Suspected of Heart Failure

    Hejl, J. L., Grand, Mia Klinten, Siersma, Volkert Dirk, Goetze, Jens P. , Olivarius, Niels de Fine, Andersen, Christen Bertel L & Lind, B., Dec 2018, In: Clinical Chemistry. 64, 12, p. 1723-1731

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

  45. Published

    Psychometric properties of brief indexes designed to measure social-cognitive predictors of smoking initiation

    Hansen, P. E., Siersma, Volkert Dirk, Ross, L., Mortensen, Erik Lykke, Riegels, M., Tjornhøj-Thomsen, T. & Johansen, C., 2007, In: Drug and Alcohol Dependence. 88, 1, p. 64-74 10 p.

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

  46. Published

    Individualised treatment goals in diabetes care

    Hansen, Lars J, Olivarius, Niels de Fine, Siersma, Volkert Dirk, Drivsholm, Thomas & Andersen, John Sahl, 2004, In: Scandinavian Journal of Primary Health Care. 22, p. 71-77

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

  47. Published

    Structured personal care of type 2 diabetes: a 19 year follow-up of the study Diabetes Care in General Practice (DCGP).

    Hansen, Lars J, Siersma, Volkert Dirk, Beck-Nielsen, H. & Olivarius, Niels de Fine, 2013, In: Diabetologia. 56, 6, p. 1243-1253

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

  48. Published

    General practitioners need to pay more attention to their poorly controlled type 2 diabetic patients

    Hansen, Lars J, Olivarius, Niels de Fine & Siersma, Volkert Dirk, 2005, In: European Journal of General Practice. 11, p. 81-83

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

  49. Published

    Encouraging structured personalised diabetes care in general practice

    Hansen, Lars J, Olivarius, Niels de Fine, Siersma, Volkert Dirk, Beck-Nielsen, H. & Pedersen, P. A., 2003, In: Scandinavian Journal of Primary Health Care. 21, p. 89-95 6 p.

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

  50. Published

    16-year excess all-cause mortality of newly diagnosed type 2 diabetic patients: a cohort study

    Hansen, Lars J, Olivarius, Niels de Fine & Siersma, Volkert Dirk, 2009, In: BMC Public Health. 9, p. 400

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

  51. Published

    Anemia is present years before myelodysplastic syndrome diagnosis: Results from the pre-diagnostic period

    Hansen, Jakob Werner, Sandholdt, H., Siersma, Volkert Dirk, mxz703, mxz703, Holmberg, S., Bjerrum, O. W., Hasselbalch, Hans Carl, Olivarius, Niels de Fine, Grønbæk, Kirsten & Andersen, Christen Bertel L, Jul 2017, In: American Journal of Hematology. 92, 7, p. E130-E132 3 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  52. Published

    Four of five frequently used orthopedic PROMs possess inadequate content validity: a COSMIN evaluation of the mHHS, HAGOS, IKDC-SKF, KOOS and KNEES-ACL

    Hansen, C. F., Jensen, J., Odgaard, Anders, Siersma, Volkert Dirk, Comins, J. D., Brodersen, John Brandt & Krogsgaard, Michael R., 2022, In: Knee Surgery, Sports Traumatology, Arthroscopy. 30, p. 3602–3615 14 p.

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

  53. Published

    Are adequate PROMs used as outcomes in randomized controlled trials? an analysis of 54 trials

    Hansen, C. F., Jensen, J., Brodersen, John Brandt, Siersma, Volkert Dirk, Comins, J. D. & Krogsgaard, Michael R., 2021, In: Scandinavian Journal of Medicine & Science in Sports. 31, 5, p. 972-981 10 p.

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

  54. Published

    A catalogue of PROMs in sports science: Quality assessment of PROM development and validation

    Hansen, C. F., Jensen, J., Siersma, Volkert Dirk, Brodersen, John Brandt, Comins, J. D. & Krogsgaard, Michael R., 2021, In: Scandinavian Journal of Medicine and Science in Sports. 31, 5, p. 991-998 8 p.

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

  55. Published

    Standard complication screening information can be used for risk assessment for first time foot ulcer among patients with type 1 and type 2 diabetes

    Hangaard, S., Rasmussen, A., Almdal, Thomas Peter, Nielsen, A. A., Nielsen, K. E., Siersma, Volkert Dirk & Holstein, P., 2019, In: Diabetes Research and Clinical Practice. 151, p. 177-186 10 p.

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

  56. 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

  57. Published

    Long-term psychosocial consequences of false-positive screening mammography: a cohort study with follow-up of 12–14 years in Denmark

    Gram, Emma Grundtvig, Siersma, Volkert Dirk & Brodersen, John Brandt, 2023, In: BMJ Open. 8 p.

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

  58. Published

    The long-term psychosocial consequences of screen-detected ductal carcinoma in situ and invasive breast cancer

    Gram, Emma Grundtvig, Manso, T. F. R., Heleno, B., Siersma, Volkert Dirk, Rogvi, J. Á. & Brodersen, John Brandt, 2023, In: The Breast. 70, p. 41-48 8 p.

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

  59. Published

    The implications of mammography screening on health care use and its associated financial costs

    Gram, Emma Grundtvig, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros & Brodersen, John Brandt, 2023, 1 p.

    Research output: Working paper › Research

  60. Published

    The long-term psychosocial impact of screen-detected DCIS – further support to rename DCIS

    Gram, Emma Grundtvig, Siersma, Volkert Dirk & Brodersen, John Brandt, 2023, In: BMJ Evidence-Based Medicine. 28, Supplement 1

    Research output: Contribution to journal › Conference abstract in journal › Research

  61. Published

    Long-term psychosocial consequences of breast cancer screening – a matched cohort study

    Gram, Emma Grundtvig, Brodersen, John Brandt & Siersma, Volkert Dirk, 2022, In: BMJ Evidence-Based Medicine. 27, Supplement 1, 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  62. Published

    Five-year trends in marital stability, academic achievement, and socioeconomic indicators after concussion: a national register study

    Graff, H. J., Siersma, Volkert Dirk, Møller, Anne, Egerod, Ingrid Eugenie & Rytter, Hana Malá, 2020, In: Journal of Head Trauma Rehabilitation. 35, 2, p. E86-E94 9 p.

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

  63. Published

    Premorbid risk factors influencing labour market attachment after mild traumatic brain injury: a national register study with long-term follow-up

    Graff, H. J., Siersma, Volkert Dirk, Møller, Anne, Kragstrup, Jakob, Andersen, L. L., Egerod, Ingrid Eugenie & Rytter, Hana Malá, 2019, In: BMJ Open. 9, 10 p., e027297.

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

  64. Published

    Labour market attachment dynamics in patients with concussion: a Danish nationwide register-based cohort study

    Graff, H. J., Siersma, Volkert Dirk, Møller, Anne, Waldorff, Frans Boch, Modin, F. A. & Rytter, Hana Malá, 2023, In: BMC Public Health. 23, 1, 11 p., 2493.

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

  65. Published

    Labour market attachment after mild traumatic brain injury: nationwide cohort study with 5-year register follow-up in Denmark

    Graff, H. J., Siersma, Volkert Dirk, Møller, Anne, Kragstrup, Jakob, Andersen, L. L., Egerod, Ingrid Eugenie & Rytter, Hana Malá, 2019, In: BMJ Open. 9, 4, 10 p., e026104.

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

  66. 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

  67. Published

    Electrical somatosensory stimulation followed by motor training of the paretic upper limb in acute stroke: study protocol for a randomized controlled trial

    Ghaziani, E., Couppé, Christian, Henkel, C., Siersma, Volkert Dirk, Søndergaard, M., Christensen, Hanne Krarup & Magnusson, Stig Peter, 23 Feb 2017, In: Trials. 18, p. 1-9 9 p., 84.

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

  68. Published

    Easily Conducted Tests During the First Week Post-stroke Can Aid the Prediction of Arm Functioning at 6 Months

    Ghaziani, E., Couppé, Christian, Siersma, Volkert Dirk, Christensen, Hanne Krarup, Magnusson, Stig Peter, Sunnerhagen, K. S., Persson, H. C. & Murphy, M. A., 2020, In: Frontiers in Neurology. 10, 13 p., 1371.

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

  69. Published

    The impact of a physician-staffed helicopter on outcome in patients admitted to a stroke unit: a prospective observational study

    Funder, K. S., Rasmussen, L. S., Lohse, N., Hesselfeldt, R., Siersma, Volkert Dirk, Gyllenborg, J., Wulffeld, S., Hendriksen, O. M., Lippert, F. K. & Steinmetz, Jacob, 23 Feb 2017, In: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 25, p. 1-9 9 p., 18.

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

  70. 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

  71. 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

  72. Published

    Helicopter vs. ground transportation of patients bound for primary percutaneous coronary intervention

    Funder, K. S., Rasmussen, L. S., Siersma, Volkert Dirk, Lohse, N., Hesselfeldt, R., Pedersen, F., Hendriksen, O. M. & Steinmetz, Jacob, 2018, In: Acta Anaesthesiologica Scandinavica. 62, 4, p. 568-578 11 p.

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

  73. 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

  74. Published

    Physical activity paradox: could inflammation be a key factor?

    Feinberg, J. B., Møller, Anne, Siersma, Volkert Dirk, Bruunsgaard, Helle & Mortensen, Ole Steen, 2022, In: British Journal of Sports Medicine. 56, 21, p. 1224-1229

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

  75. 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

  76. 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

  77. Published

    Infants' symptoms of illness assessed by parents: Impact and implications

    Ertmann, Ruth Kirk, Siersma, Volkert Dirk, Reventlow, Susanne & Söderström, M., 1 Jun 2011, In: Scandinavian Journal of Primary Health Care. 29, 2, p. 67-74 8 p.

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

  78. Published

    The predictive value of common symptoms in early pregnancy for complications later in pregnancy and at birth

    Ertmann, Ruth Kirk, Nicolaisdottir, Dagny Ros, Kragstrup, Jakob, Overbeck, Gritt, Kriegbaum, Margit & Siersma, Volkert Dirk, 2023, In: Acta Obstetricia et Gynecologica Scandinavica. 102, 1, p. 33-42 10 p.

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

  79. 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

  80. 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

  81. Published

    Factors in early pregnancy predicting pregnancy-related pain in the second and third trimester

    Ertmann, Ruth Kirk, Nicolaisdottir, Dagny Ros, Siersma, Volkert Dirk, Overbeck, Gritt, de Voss, Sarah Strøyer, Modin, F. A. & Lutterodt, Melissa C., 2023, In: Acta Obstetricia et Gynecologica Scandinavica. 102, 10, p. 1269-1280 12 p.

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

  82. Published

    Selection bias in general practice research: analysis in a cohort of pregnant Danish women

    Ertmann, Ruth Kirk, Nicolaisdottir, Dagny Ros, Kragstrup, Jakob, Siersma, Volkert Dirk, Overbeck, Gritt, Wilson, Philip Michael John & Lutterodt, Melissa C., 2020, In: Scandinavian Journal of Primary Health Care. 38, 4, p. 464-472 9 p.

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

  83. Published

    Mental vulnerability before and depressive symptoms during pregnancy and postpartum: a prospective population-based cohort study from general practice

    Ertmann, Ruth Kirk, Lyngsøe, B. K., Nicolaisdottir, Dagny Ros, Kragstrup, Jakob & Siersma, Volkert Dirk, 2022, In: Nordic Journal of Psychiatry. 76, 4, p. 243-249 7 p.

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

  84. Published

    Sleep complaints in early pregnancy. A cross-sectional study among women attending prenatal care in general practice

    Ertmann, Ruth Kirk, Nicolaisdottir, Dagny Ros, Kragstrup, Jakob, Siersma, Volkert Dirk & Lutterodt, Melissa C., 2020, In: B M C Pregnancy and Childbirth. 20, 9 p., 123.

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

  85. Published

    What factors are most important for the development of the maternal-fetal relationship? A prospective study among pregnant women in Danish general practice

    Ertmann, Ruth Kirk, Bang, C. W., Kriegbaum, Margit, Væver, Mette Skovgaard, Kragstrup, Jakob, Siersma, Volkert Dirk, Wilson, Philip Michael John, Lutterodt, Melissa C. & Smith-Nielsen, Johanne, 2021, In: BMC Psychology. 9, 1, 9 p., 2.

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

  86. Published

    Physical discomfort in early pregnancy and postpartum depressive symptoms

    Ertmann, Ruth Kirk, Nicolaisdottir, Dagny Ros, Kragstrup, Jakob, Siersma, Volkert Dirk, Lutterodt, Melissa C. & Bech, P., 2019, In: Nordic Journal of Psychiatry. 73, 3, p. 200-206 7 p.

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

  87. Published

    The majority of sick children receive paracetamol during the winter

    Ertmann, Ruth Kirk, Møller, J. J., Waldorff, Frans Boch, Siersma, Volkert Dirk, Reventlow, Susanne & Söderström, M., 2012, In: Danish Medical Journal. 59, 12, p. A4555

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

  88. Published

    Documenting organisational development in general practice using a group-based assessment method: the Maturity Matrix

    Eriksson, T., Siersma, Volkert Dirk, Løgstrup, L., Buch, M., Elwyn, G. & Edwards, A., Jul 2010, In: Quality and Safety in Healthcare. 19, 5, p. 1-7 6 p.

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

  89. Published

    Reconstruction of the anterior cruciate- and anterolateral ligament deficient knee with a modified iliotibial graft reduces instability more than with an intra-articular hamstring graft

    Eljaja, S. B., Konradsen, L., Siersma, Volkert Dirk, Athwal, K., Amis, A. A. & Krogsgaard, Michael R., 2020, In: Knee Surgery, Sports Traumatology, Arthroscopy. 28, p. 2526–2534 9 p.

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

  90. Published

    No effect of anti-TNF-α agents on the surgical stress response in patients with inflammatory bowel disease undergoing bowel resections: a prospective multi-center pilot study

    El-Hussuna, A., Qvist, N., Zangenberg, M. S., Langkilde, A., Siersma, Volkert Dirk, Hjort, S. & Gögenur, I., 2018, In: BMC Surgery. 18, 10 p., 91.

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

  91. 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

  92. Published

    Antibiotic treatment of community-acquired pneumonia: a questionnaire survey in Danish general practice

    Eggers-Kaas, L., Bisgaard, L., Thomsen, J. L., Jarbøl, D. E., Llor, C., Christensen, M. B., Bjerrum, Lars, Siersma, Volkert Dirk & Hansen, M. P., 2022, In: Basic & Clinical Pharmacology & Toxicology. 130, 1, p. 151-157 7 p.

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

  93. 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

  94. Published

    How well do general practitioners know their elderly patients' social relations and feelings of loneliness?

    Due, Tina Drud, Sandholdt, H., Siersma, Volkert Dirk & Waldorff, Frans Boch, 26 Feb 2018, In: BMC Family Practice. 19, 8 p., 34.

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

  95. Published

    Symptoms, signs and complications in newly diagnosed type 2 diabetic patients, and their relationship to glycaemia, blood pressure and weight

    Drivsholm, Thomas, Olivarius, Niels de Fine, Nielsen, Anni Brit Sternhagen & Siersma, Volkert Dirk, 2005, In: Diabetologia. 48, p. 210-214

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

  96. Published

    Acetabular retroversion does not affect outcome in primary hip arthroscopy for femoroacetabular impingement

    Dippmann, Christian Andreas, Siersma, Volkert Dirk, Overgaard, Søren & Krogsgaard, Michael R., 2022, In: Knee Surgery, Sports Traumatology, Arthroscopy. 30, p. 3535–3543 9 p.

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

  97. Published

    The association of a past childbirth experience with a variety of early physical and mental symptoms in subsequent pregnancies

    Davidsen, A. S., Birkmose, Anna Rubach, Kragstrup, Jakob, Siersma, Volkert Dirk & Ertmann, Ruth Kirk, 2022, In: Midwifery. 112, 7 p., 103406.

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

  98. Published

    Use and diagnostic outcomes of cancer patient pathways in Denmark - is the place of initial diagnostic work-up an important factor?

    Damhus, Christina Sadolin, Siersma, Volkert Dirk, Birkmose, Anna Rubach, Dalton, Susanne Oksbjerg & Brodersen, John Brandt, 2022, In: BMC Health Services Research. 22, 1, 12 p., 130.

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

  99. Published

    Psychosocial consequences of screening-detected abdominal aortic aneurisms: a cross-sectional study

    Damhus, Christina Sadolin, Siersma, Volkert Dirk, Hansson, A., Bang, C. W. & Brodersen, John Brandt, 2021, In: Scandinavian Journal of Primary Health Care. Supplement. 39, 4, p. 459-465 7 p.

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

  100. Published

    Non-specific symptoms and signs of cancer: different organisations of a cancer patient pathway in Denmark

    Damhus, Christina Sadolin, Siersma, Volkert Dirk, Dalton, Susanne Oksbjerg & Brodersen, John Brandt, 2021, In: Scandinavian Journal of Primary Health Care. 9 p.

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

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