Volkert Dirk Siersma
!!Statistiker, External Lecturer
Forskningsenheden for Almen Praksis
Øster Farimagsgade 5
1353 København K
Section of Biostatistics
Øster Farimagsgade 5 opg. B
1353 København K
- 2023
- Published
A cross-sectional study of the association between family conflicts and children's health: Lolland-Falster Health Study
Søndergaard, Elisabeth, Reventlow, Susanne, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros, Jepsen, R., Rasmussen, K. & Møller, Anne, 2023, In: Child: Care, Health and Development. 49, 6, p. 972-984 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Assessment of the Psychometric Properties of the Danish VISA-P
Agergaard, Anne-Sofie, Comins, J. D., Siersma, Volkert Dirk, Malmgaard-Clausen, N. M., Couppé, Christian, Hjortshoej, M. H., Olesen, J. L. & Magnusson, Stig Peter, 2023, In: Translational Sports Medicine. 2023, 8 p., 5291949.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
Colon cancer diagnosed in patients with non-specific symptoms - comparisons between diagnostic paradigms
Damhus, Christina Sadolin, Siersma, Volkert Dirk, Birkmose, Anna Rubach, Stovring, H., Dalton, Susanne Oksbjerg & Brodersen, John Brandt, 2023, In: Acta Oncologica. 62, 3, p. 272-280 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Comparing restrictive versus liberal oxygen strategies for trauma patients: The TRAUMOX2 trial—Statistical analysis plan
Arleth, T., Baekgaard, J., Siersma, Volkert Dirk, Klimek, M., Hinkelbein, J., Rasmussen, L. S., Steinmetz, Jacob & for The TRAUMOX2 Study Group, F. T. T. S. G., 2023, In: Acta Anaesthesiologica Scandinavica. 67, 6, 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Development of quality indicators for the diagnosis and treatment of urinary tract infections in general practice: a RAND appropriateness method
Saust, Laura Trolle, Siersma, Volkert Dirk, Bjerrum, Lars & Hansen, M. P., 2023, In: BMJ Open Quality. 12, 2, 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Evaluation of the Danish version of the prenatal parental reflective functioning questionnaire in early pregnancy as a screening tool
Schwartz, M., Rasmussen, Ida Scheel, Wilson, Philip Michael John, Overbeck, Gritt & Siersma, Volkert Dirk, 2023, In: Infant Mental Health Journal. 44, 3, 19 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- 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
- 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
- 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
- Published
Measuring needs-based quality of life and self-perceived health inequity in patients with multimorbidity: investigating psychometric measurement properties of the MultiMorbidity Questionnaire (MMQ) using primarily Rasch models
Bissenbakker, Kristine Henderson, Siersma, Volkert Dirk, Jønsson, Alexandra Brandt Ryborg, Møller, Anne, Christensen, Karl Bang & Brodersen, John Brandt, 2023, In: Journal of Patient-Reported Outcomes. 7, 1, 15 p., 94.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Monocytosis in primary care and risk of haematological malignancies
Christensen, M. E., Siersma, Volkert Dirk, Kriegbaum, Margit, Lind, B. S., Samuelsson, J., Østgård, L. S. G., Grønbæk, Kirsten & Andersen, Christen Bertel L, 2023, In: European Journal of Haematology. 110, 4, p. 362-370 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- Published
School performances in children with cataract: results from a population-based cohort study
Al-Bakri, M., Skovgaard, A. M., Bach-Holm, Daniella, Larsen, D. A., Siersma, Volkert Dirk & Kessel, Line, 2023, In: BMJ Open. 13, 8, 9 p., e072984.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Severity and Bothersomeness of Urinary Tract Infection Symptoms in Women before and after Menopause
Teglbrænder-Bjergkvist, S., Siersma, Volkert Dirk & Holm, Anne, 2023, In: Antibiotics. 12, 7, 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Social relations and leisure activities as predictors of wellbeing among older adults with multiple sclerosis: A cross-sectional survey study in Denmark
Bergien, Sofie Olsgaard, Siersma, Volkert Dirk, Kristiansen, Maria & Skovgaard, L., 2023, In: Multiple Sclerosis and Related Disorders. 77, 8 p., 104878.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Specific location of ocular adnexal lymphoma and mortality: an international multicentre retrospective study
Vest, S. D., Coupland, S. E., Esmaeli, B., Finger, P. T., Graue, G. F., Grossniklaus, H. E., Hindso, T. G., Holm, F., Honavar, S. G., Khong, J. J., Kirkegaard, M. K., McKelvie, P. A., Mikkelsen, L. H., Mulay, K., Rasmussen, P. K., Siersma, V., Sjö, L. D., Sniegowski, M. C., Thuro, B. A., Vemuganti, G. K. & 1 others, , 2023, In: British Journal of Ophthalmology. 107, 9, p. 1231-1238 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The SOFIA pilot study: assessing feasibility and fidelity of coordinated care to reduce excess mortality and increase quality of life in patients with severe mental illness in a general practice setting; a cluster-randomised pilot trial
Jensen, Katrine Tranberg, Jønsson, Alexandra Brandt Ryborg, Due, Tina Drud, Siersma, Volkert Dirk, Brodersen, John Brandt, Bissenbakker, Kristine Henderson, Martiny, Frederik Handberg Juul, Davidsen, Annette Sofie, Kjellberg, P. K., Doherty, K., Mercer, S. W., Nielsen, Maria Haahr, Reventlow, Susanne, Møller, Anne, Rozing, M. & SOFIA Study Group, S. S. G., 2023, In: BMC Primary Care. 24, 1, 11 p., 188.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
- 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
- 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 1Research output: Contribution to journal › Conference abstract in journal › Research
- 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
- Published
The risk of bleeding and perforation from sigmoidoscopy or colonoscopy in colorectal cancer screening: A systematic review and meta-analyses
Kindt, I. S., Martiny, Frederik Handberg Juul, Gram, Emma Grundtvig, Bie, A. K. L., Jauernik, Christian Patrick, Rahbek, O. J., Nielsen, S. B., Siersma, Volkert Dirk, Bang, C. W. & Brodersen, John Brandt, 2023, In: PLoS ONE. 18, 10, 17 p., e0292797.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Uptake of signposting to web-based resources: pregnant women’s use of a preventive web-based intervention
Sørensen, E. R., Rasmussen, Ida Scheel, Overbeck, Gritt, Siersma, Volkert Dirk, Appel, Clara Lundmark & Wilson, Philip Michael John, 2023, In: BMC Primary Care. 24, 11 p., 189.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 3512987
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Maternal stress and placental function, a study using questionnaires and biomarkers at birth
Research output: Contribution to journal › Journal article › Research › peer-review
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332
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Clinical indications for antibiotic use in Danish general practice: results from a nationwide electronic prescription database
Research output: Contribution to journal › Journal article › Research › peer-review
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326
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Biomonitoring of Danish school children and mothers including biomarkers of PBDE and glyphosate
Research output: Contribution to journal › Journal article › Research › peer-review
Published