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
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Increased Incidence of Mental Disorders in Children with Cataract: Findings from a Population-based Study
AL-BAKRI, M. O. U. G., SKOVGAARD, A. M., Bach-Holm, Daniella, LARSEN, D. A., Siersma, Volkert Dirk & Kessel, Line, 2022, In: American Journal of Ophthalmology. 236, p. 204-211 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The development and validation of a multidimensional sum-scaling questionnaire to measure patient-reported outcomes in acute respiratory tract infections in primary care: the Acute Respiratory Tract Infection Questionnaire: ARTIQ
Aabenhus, Rune Munck, Thorsen, Hanne, Siersma, Volkert Dirk & Brodersen, John Brandt, 2013, In: Value in Health. 16, p. 987-992 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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Identifying practice-related factors for high-volume prescribers of antibiotics in Danish general practice
Aabenhus, Rune Munck, Siersma, Volkert Dirk, Sandholdt, H., Køster-Rasmussen, Rasmus, Hansen, M. P. & Bjerrum, Lars, 1 Aug 2017, In: Journal of Antimicrobial Chemotherapy. 72, 8, p. 2385-2391 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Apolipoprotein E Genotype and Cognitive Dysfunction after Noncardiac Surgery
Abildstrøm, H., Christiansen, M., Siersma, Volkert Dirk & Rasmussen, L. S., 2004, In: Anesthesiology. 101, p. 855-861Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Psychosocial consequences of allocation to lung cancer screening: a randomised controlled trial
Aggestrup, L. M., Hestbech, Mie Sara, Siersma, Volkert Dirk, Pedersen, J. H. & Brodersen, John Brandt, 2012, In: B M J Open. 2, e000663.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Socio-economic status in families affected by childhood cataract
Al-Bakri, M., Bach-Holm, Daniella, Larsen, D. A., Siersma, Volkert Dirk & Kessel, Line, 2022, In: Acta Ophthalmologica. 100, 2, p. 183-188 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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. 843-847Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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. 566-575Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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Is it okay to choose to receive bad news by telephone? An observational study on psychosocial consequences of diagnostic workup for lung cancer suspicion
Andersen, I. C., Siersma, Volkert Dirk, Marsaa, K., Preisel, N., Høegholm, A., Brodersen, John Brandt & Bodtger, U., 2022, In: Acta Oncologica. 61, 12, p. 1446-1453Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Pre-diagnostic trajectories of lymphocytosis predict time to treatment and death in patients with chronic lymphocytic leukemia
Andersen, M. A., Grand, Mia Klinten, Brieghel, C., Siersma, Volkert Dirk, Andersen, Christen Bertel L & Niemann, Carsten, 2022, In: Communications Medicine. 2, 8 p., 50.Research output: Contribution to journal › Journal article › Research › peer-review
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Structural and cognitive correlates of fatigue in progressive multiple sclerosis
Andreasen, A. K., Iversen, P., Marstrand, L., Siersma, Volkert Dirk, Siebner, Hartwig Roman & Sellebjerg, Finn Thorup, 2019, In: Neurological Research. 41, 2, p. 168-176Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Effectiveness of a tailored intervention to reduce antibiotics for urinary tract infections in nursing home residents: a cluster, randomised controlled trial
Arnold, Sif Helene, Jensen, J. N., Bjerrum, Lars, Siersma, Volkert Dirk, Bang, C. W., Kousgaard, Marius Brostrøm & Holm, Anne, 2021, In: Lancet Infectious Diseases. 21, 11, p. 1549-1556 8 p.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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328
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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