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
- 2018
- Published
Exercise induced effects on muscle function and range of motion in patients with hip osteoarthritis
Bieler, T., Siersma, Volkert Dirk, Magnusson, Stig Peter, Kjær, Michael & Beyer, N., Jan 2018, In: Physiotherapy Research International. 23, 1, 9 p., e1697.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Interpretation of HbA1c in primary care and potential influence of anaemia and chronic kidney disease: an analysis from the Copenhagen Primary Care Laboratory (CopLab) Database
Borg, Rikke, Persson, F., Siersma, Volkert Dirk, Lind, B., de Fine Olivarius, N. & Andersen, Christen Bertel L, 2018, In: Diabetic Medicine. 35, 12, p. 1700-1706 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Consequences of screening in abdominal aortic aneurysm: development and dimensionality of a questionnaire
Brodersen, John Brandt, Hansson, A., Johansson, M., Siersma, Volkert Dirk, Langenskiöld, M. & Pettersson, M., 2018, In: Journal of Patient-Reported Outcomes. 2, 12 p., 37.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Consequences of screening in cervical cancer: Development and dimensionality of a questionnaire
Brodersen, John Brandt, Siersma, Volkert Dirk & Thorsen, Hanne, 2018, In: BMC Psychology. 6, 1, 39.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
KNEES-ACL has superior responsiveness compared to the most commonly used patient-reported outcome measures for anterior cruciate ligament injury
Comins, J. D., Siersma, Volkert Dirk, Lind, M., Jakobsen, B. W. & Krogsgaard, Michael R., 2018, In: Knee Surgery, Sports Traumatology, Arthroscopy. 26, 8, p. 2438-2446 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Use of diagnostic tests and the appropriateness of the treatment decision in patients with suspected urinary tract infection in primary care in Denmark - Observational study
Cordoba Currea, Gloria Cristina, Holm, Anne, Sørensen, Tina Møller, Siersma, Volkert Dirk, Sandholdt, H., Makela, M., Frimodt-Møller, N. & Bjerrum, Lars, 2018, In: BMC Family Practice. 19, 1, 7 p., 65.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Maternal stress and placental function, a study using questionnaires and biomarkers at birth
Dahlerup, B. R., Egsmose, E. L., Siersma, Volkert Dirk, Mortensen, Erik Lykke, Hedegaard, M., Knudsen, Lisbeth E. & Mathiesen, Line, 2018, In: PLOS ONE. 13, 11, 18 p., e0207184.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- 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
- 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. 1723-1731Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- 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. 39-45Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- Published
Markers of DNA/RNA damage from oxidation as predictors of a registry-based diagnosis of psychiatric illness in type 2 diabetic patients
Jørgensen, Anders, Siersma, Volkert Dirk, Davidsen, Annette Sofie, Weimann, A., Henriksen, T., Poulsen, Henrik Enghusen & Olivarius, Niels de Fine, Jan 2018, In: Psychiatry Research. 259, p. 370-376 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Interplay between financial assets and social relations on decline in physical function and mortality among older people
Jørgensen, Terese Sara Høj, Lund, Rikke, Siersma, Volkert Dirk & Nilsson, Charlotte Juul, 2018, In: European Journal of Ageing. 15, 2, p. 133–142 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Measuring bothersome menopausal symptoms: development and validation of the MenoScores questionnaire
Lund, K. S., Siersma, Volkert Dirk, Christensen, Karl Bang, Waldorff, Frans Boch & Brodersen, John Brandt, 2018, In: Health and Quality of Life Outcomes. 16, 12 p., 97.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Diagnostic and Prognostic Value of a Dual-Tasking Paradigm in a Memory Clinic
Nielsen, M. S., Simonsen, A. H., Siersma, Volkert Dirk, Hasselbalch, Steen & Høgh, Peter, 2018, In: Journal of Alzheimer's Disease. 61, 3, p. 1189-1199 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The risk of fall accidents for home dwellers with dementia—A register- and population-based case-control study
Petersen, Jindong Ding, Siersma, Volkert Dirk, Christensen, R. D. P., Storsveen, M. M., Nielsen, C. T. & Waldorff, Frans Boch, 2018, In: Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring. 10, p. 421-428 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Self-rated versus Caregiver-rated Health for Patients with Mild Dementia as Predictors of Patient Mortality
Phung, T. K. T., Siersma, Volkert Dirk, Vogel, Asmus, Waldorff, Frans Boch & Waldemar, Gunhild, 2018, In: American Journal of Geriatric Psychiatry. 26, 3, p. 375-385 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The development of multimorbidity during 16 years after diagnosis of type 2 diabetes
Pouplier, S., Olsen, M. Å., Willadsen, Tora Grauers, Sandholdt, H., Siersma, Volkert Dirk, Andersen, Christen Bertel L & Olivarius, Niels de Fine, 2018, In: Journal of Comorbidity. 8, 1, p. 1-9 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Subjective memory complaints and future depression in primary care patients: A four-year follow-up study
Quaade, A. S., Davidsen, Annette Sofie, Siersma, Volkert Dirk, Waldemar, Gunhild & Waldorff, Frans Boch, 1 Nov 2018, In: General Hospital Psychiatry. 55, p. 4-9 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quality assessment in general practice: diagnosis and antibiotic treatment of acute respiratory tract infections
Saust, Laura Trolle, Bjerrum, Lars, Siersma, Volkert Dirk, Arpi, M. & Hansen, M. P., 2018, In: Scandinavian Journal of Primary Health Care. 36, 4, p. 372-379 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantitative Electroencephalography Analyzed by Statistical Pattern Recognition as a Diagnostic and Prognostic Tool in Mild Cognitive Impairment: Results from a Nordic Multicenter Cohort Study
Schjønning Nielsen, M., Simonsen, A. H., Siersma, Volkert Dirk, Engedal, K., Jelic, V., Andersen, B. B., Naik, M., Hasselbalch, Steen & Høgh, Peter, 2018, In: Dementia and Geriatric Cognitive Disorders. Extra. 8, 3, p. 426-438 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Change in Fitness and the Relation to Change in Cognition and Neuropsychiatric Symptoms After Aerobic Exercise in Patients with Mild Alzheimer's Disease
Sobol, N. A., Dall, C. H., Høgh, Peter, Hoffmann, K., Frederiksen, K. S., Vogel, A., Siersma, Volkert Dirk, Waldemar, Gunhild, Hasselbalch, Steen & Beyer, N., 2018, In: Journal of Alzheimer's Disease. 65, 1, p. 137-145 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Psychosocial consequences among women with false-positive results after mammography screening in Norway
Solbjør, M., Forsmo, S., Skolbekken, J., Siersma, Volkert Dirk & Brodersen, John Brandt, 2018, In: Scandinavian Journal of Primary Health Care. 36, 4, p. 380-389 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Spending time outside to reduce infections at preschool may be an overrated strategy
Söderström, M., Siersma, Volkert Dirk & Boldemann, C., 2018, In: Acta Paediatrica. 107, 9, p. 1652 1 p.Research output: Contribution to journal › Editorial › Research › peer-review
- Published
Effects of Diagnostic Work-Up on Medical Decision-Making for Canine Urinary Tract Infection: An Observational Study in Danish Small Animal Practices
Sørensen, Tina Møller, Bjørnvad, Charlotte Reinhard, Cordoba Currea, Gloria Cristina, Damborg, Peter Panduro, Guardabassi, Luca, Siersma, Volkert Dirk, Bjerrum, Lars & Jessen, Lisbeth Rem, 2018, In: Journal of Veterinary Internal Medicine. 32, 2, p. 743-751Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Hunde med tegn på cystitis overbehandles
Sørensen, Tina Møller, Bjørnvad, Charlotte Reinhard, Cordoba Currea, Gloria Cristina, Damborg, Peter Panduro, Guardabassi, Luca, Siersma, Volkert Dirk, Bjerrum, Lars & Jessen, Lisbeth Rem, Jun 2018, In: Dyrlægen; fagmagasin for dyrlæger, veterinærstuderende og veterinærsygeplejersker. 12, 3, p. 22-26 5 p.Research output: Contribution to journal › Journal article › Communication
- Published
Multimorbidity and mortality: A 15-year longitudinal registry-based nationwide Danish population study
Willadsen, Tora Grauers, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros, Køster-Rasmussen, Rasmus, Jarbøl, D. E., Reventlow, Susanne, Mercer, S. & Olivarius, Niels de Fine, 2018, In: Journal of Comorbidity. 8, p. 1-9 9 p., 8.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The effect of structured personal care on diabetes symptoms and self-rated health over 14 years after diabetes diagnosis
Willadsen, Tora Grauers, Siersma, Volkert Dirk, Nielsen, Anni Brit Sternhagen, Køster-Rasmussen, Rasmus, Guassora, Ann Dorrit, Jarbol, D. E., Eusebi, P., Malterud, Kirsti, Reventlow, Susanne & Olivarius, Niels de Fine, 2018, In: Primary Care Diabetes. 12, 4, p. 354-363 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 3512987
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762
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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
Published -
329
downloads
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
Published -
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