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
- 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
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Examining to what extent pregnancy-related physical symptoms worry women in the first trimester of pregnancy: a cross-sectional study in general practice
Lutterodt, Melissa C., Kähler, P., Kragstrup, Jakob, Nicolaisdottir, Dagny Ros, Siersma, Volkert Dirk & Ertmann, Ruth Kirk, 2019, In: British Journal of General Practice Open . 3, 9 p., 4.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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Efficacy of a standardised acupuncture approach for women with bothersome menopausal symptoms: a pragmatic randomised study in primary care (the ACOM study)
Lund, K. S., Siersma, Volkert Dirk, Brodersen, John Brandt & Waldorff, Frans Boch, 2019, In: BMJ Open. 9, 1, p. e023637 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Sustained effects of a brief and standardised acupuncture approach on menopausal symptoms: post hoc analysis of the ACOM randomised controlled trial
Lund, K. S., Siersma, Volkert Dirk, Bang, C. W., Brodersen, John Brandt & Waldorff, Frans Boch, 2020, In: Acupuncture in Medicine. 38, 6, p. 396-406 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
- Published
The efficacy of acupuncture on menopausal symptoms (ACOM study): protocol for a randomised study
Lund, K. S., Brodersen, John Brandt, Siersma, Volkert Dirk & Waldorff, Frans Boch, Mar 2017, In: Danish Medical Journal. 64, 3, p. 1-6 6 p., A5344.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Early predictors of the long-term outcome of low back pain - results of a 22-year prospective cohort study from general practice
Lonnberg, F., Pedersen, P. & Siersma, Volkert Dirk, 2010, In: Family Practice. 27, 6, p. 609-614 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Fitness consultations in routine care of patients with type 2 diabetes in general practice: an 18-month non-randomised intervention study
Lohmann, H., Siersma, Volkert Dirk & Olivarius, Niels de Fine, 2010, In: B M C Family Practice. 11, p. 83-92 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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GP and staff evaluation of the maturity matrix as a tool to assess and improve organizational development in primary care
Loegstrup, L., Edwards, A., Waldorff, Frans Boch, Siersma, Volkert Dirk, Buch, M. S. & Eriksson, T., 2009, In: International Journal of Health Care Quality Assurance. 22, 7, p. 684-701 18 p.Research output: Contribution to journal › Journal article › Research
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Trend in antibiotic prescription to children aged 0-6 years old in the capital region of Denmark between 2009 and 2018: Differences between municipalities and association with socioeconomic composition
Larsen, S. B., Jensen, Maria Louise Veimer, Bjerrum, Lars, Siersma, Volkert Dirk, Bang, C. W. & Jensen, J. N., 2021, In: The European Journal of General Practice. 27, 1, p. 257-263 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Long-term survival and cognitive function according to blood pressure management during cardiac surgery: A follow up
Larsen, M. H., Draegert, C., Vedel, A. G., Holmgaard, F., Siersma, Volkert Dirk, Nilsson, J. C. & Rasmussen, L. S., 2020, In: Acta Anaesthesiologica Scandinavica. 64, 7, p. 936-944 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
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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
- 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. 541-549Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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
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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
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What is a PROM and why do we need it? Article 1 in a series of 10
Krogsgaard, Michael R., Brodersen, John Brandt, Christensen, Karl Bang, Siersma, Volkert Dirk, Kreiner, Svend, Jensen, J., Hansen, C. F. & Comins, J. D., 2021, In: Scandinavian Journal of Medicine and Science in Sports. 31, 5, p. 967-971 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
How to translate and locally adapt a PROM: Assessment of cross-cultural differential item functioning
Krogsgaard, Michael R., Brodersen, John Brandt, Christensen, Karl Bang, Siersma, Volkert Dirk, Jensen, J., Hansen, C. F., Engebretsen, L., Visnes, H., Forssblad, M. & Comins, J. D., 2021, In: Scandinavian Journal of Medicine & Science in Sports. 31, 5, p. 999-1008 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Short-term practice effects and variability in cognitive testing in a healthy elderly population
Krenk, L., Rasmussen, L. S., Siersma, Volkert Dirk & Kehlet, Henrik, 2012, In: Experimental Gerontology. 47, 6, p. 432–436 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
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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329
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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