Volkert Dirk Siersma

Volkert Dirk Siersma

!!Statistiker, External Lecturer

ORCID: 0000-0003-1941-2681

Publication year:
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51 - 100 out of 380Page size: 50
  1. 2022
  2. 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

  3. 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

  4. Published

    Incidence of new-onset type 2 diabetes after cancer: A Danish cohort study

    Sylow, Lykke, Grand, Mia Klinten, von Heymann, A., Persson, F., Siersma, Volkert Dirk, Kriegbaum, Margit, Andersen, Christen Bertel L & Johansen, Christoffer, 2022, In: Diabetes Care. 45, 6, p. e105-e106 2 p.

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

  5. Published

    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

  6. Published

    Influence of Antimicrobial Resistance on the Course of Symptoms in Female Patients Treated for Uncomplicated Cystitis Caused by Escherichia coli

    Waldorff, M. S., Bjerrum, Lars, Holm, Anne, Siersma, Volkert Dirk, Bang, C., Llor, C. & Cordoba Currea, Gloria Cristina, 2022, In: Antibiotics. 11, 2, 10 p., 188.

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

  7. Published

    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. 1446-1453

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

  8. 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

  9. 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

  10. Published

    Mental well-being during stages of COVID-19 lockdown among pregnant women and new mothers

    Overbeck, Gritt, Rasmussen, Ida Scheel, Siersma, Volkert Dirk, Kragstrup, Jakob, Ertmann, Ruth Kirk & Wilson, Philip Michael John, 2022, In: BMC Pregnancy and Childbirth. 22, 1, 7 p., 92.

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

  11. 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

  12. Published

    P05-13 Associations between occupational physical activity and progression of carotid atherosclerosis among middle-aged women, are those with pre-existing cardiovascular disease more vulnerable?

    Korshoj, M., Allesoe, K., Mortensen, Ole Steen, Siersma, Volkert Dirk & Kauhanen, J., 2022, In: European Journal of Public Health. 32, 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  13. 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

  14. Published

    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

  15. 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

  16. Published

    Short and long-term psychosocial consequences of participating in a colorectal cancer screening programme: a matched longitudinal study

    Malmqvist, J., Siersma, Volkert Dirk, Hestbech, Mie Sara, Bang, C. W., Nicolaisdottir, Dagny Ros & Brodersen, John Brandt, 2022, In: BMJ Evidence-Based Medicine. 27, 2, 10 p.

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

  17. Published

    Social relations and contact with general practitioner in a middle-aged Danish population: a prospective register- and survey-based cohort study

    Mikkelsen, A. S. B., Lund, Rikke, Siersma, Volkert Dirk, Jørgensen, Terese Sara Høj, Christensen, Ulla & Kristiansen, Maria, 2022, In: BMC Health Services Research. 22, 481, 481.

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

  18. Published

    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

  19. 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

  20. Published

    The effect of disease onset chronology on mortality among patients with multimorbidity: A Danish nationwide register study

    Willadsen, Tora Grauers, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros, Køster-Rasmussen, Rasmus, Reventlow, Susanne & Rozing, Maarten Pieter, 2022, In: J Multimorb Comorb .. 12, 10 p.

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

  21. 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

  22. Published

    Use of online material in teaching general practice: Brug af online material i undervisningen i almen medicin

    Jørgensen, Merete, Witt, K., Mäkelä, Marjukka, Siersma, Volkert Dirk & Bang, C. W., 2022, In: Læring og Medier. 14, 24, 20 p.

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

  23. 2021
  24. Published

    Consequences of screening in colorectal cancer (COS-CRC): development and dimensionality of a questionnaire

    Malmqvist, J., Siersma, Volkert Dirk, Bang, C. W. & Brodersen, John Brandt, Dec 2021, In: BMC Psychology. 9, 1, 16 p., 7.

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

  25. 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

  26. Published

    Antibiotic prescribing in Danish general practice in the elderly population from 2010 to 2017

    Jensen, Maria Louise Veimer, Aabenhus, Rune Munck, Holzknecht, Barbara Juliane, Bjerrum, Lars, Jensen, J. N., Siersma, Volkert Dirk & Cordoba Currea, Gloria Cristina, 2021, In: Scandinavian Journal of Primary Health Care. 39, 4, p. 498-505 8 p.

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

  27. 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

  28. Published

    Article three in a series of ten How to develop a condition-specific PROM

    Comins, J. D., Brodersen, John Brandt, Siersma, Volkert Dirk, Jensen, J., Hansen, C. F. & Krogsgaard, Michael R., 2021, In: Scandinavian Journal of Medicine & Science in Sports. 31, 6, p. 1216-1224 9 p.

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

  29. Published

    Assessment of content validity and psychometric properties of VISA-A for Achilles tendinopathy

    Comins, J., Siersma, Volkert Dirk, Couppé, Christian, Svensson, R. B., Johansen, F., Malmgaard-Clausen, N. M. & Magnusson, Stig Peter, 2021, In: PLoS ONE. 16, 3, 12 p., 0247152.

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

  30. Published

    Breaking potentially bad news of cancer workup to well-informed patients by telephone versus in-person: A randomised controlled trial on psychosocial consequences

    Bodtger, U., Marsaa, K., Siersma, Volkert Dirk, Bang, C. W., Høegholm, A. & Brodersen, John Brandt, 2021, In: European Journal of Cancer Care. 30, 5, 11 p., e13435.

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

  31. Published

    Choosing the most appropriate PROM for clinical studies in sports medicine: Article two in a series of ten

    Comins, J. D., Brodersen, John Brandt, Siersma, Volkert Dirk, Jensen, J., Hansen, C. F. & Krogsgaard, Michael R., 2021, In: Scandinavian Journal of Medicine and Science in Sports. 31, 6, p. 1209-1215 7 p.

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

  32. Published

    Chronic hyperglycemia, hypercholesterolemia, and metabolic syndrome are associated with risk of tendon injury

    Skovgaard, D., Siersma, Volkert Dirk, Klausen, S. B., Visnes, H., Haukenes, I., Bang, C. W., Bager, P., Gravare Silbernagel, K., Gaida, J., Magnusson, Stig Peter, Kjær, Michael & Couppé, Christian, 2021, In: Scandinavian Journal of Medicine & Science in Sports. 31, 9, p. 1822-1831 11 p.

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

  33. Published

    Conjunctival intraepithelial neoplasia and carcinoma: distinct clinical and histological features in relation to human papilloma virus status

    Ramberg, Ingvild Margrethe Sellæg, Toft, Peter Bjerre, Georgsen, J. B., Siersma, Volkert Dirk, Funding, M., Jensen, D. H., von Buchwald, Christian & Heegaard, Steffen, 2021, In: British Journal of Ophthalmology. 105, 6, p. 878-883 6 p.

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

  34. Published

    Criteria-based dispatch of emergency medical services in non-traumatic subarachnoid haemorrhage

    Sonne, A., Andersen, Jesper, Eskesen, V., Lippert, F., Waldorff, Frans Boch, Bang, C. W., Siersma, Volkert Dirk, Lohse, Nicolai Rasch & Rasmussen, L. S., 2021, In: Danish Medical Journal. 68, 9, 9 p., 02210152.

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

  35. 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

  36. Published

    Depression and anxiety symptoms in pregnant women in Denmark during COVID-19

    Overbeck, Gritt, Andersen, Julie Høgsgaard, mxb897, mxb897, Rasmussen, Ida Scheel, Kragstrup, Jakob, Siersma, Volkert Dirk, Wilson, Philip Michael John & Ertmann, Ruth Kirk, 2021, In: Scandinavian Journal of Public Health. 49, 7, p. 721-729 9 p.

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

  37. 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

  38. Published

    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

  39. Published

    Factors associated with a clinically relevant reduction in menopausal symptoms of a standardized acupuncture approach for women with bothersome menopausal symptoms

    Waldorff, Frans Boch, Bang, C. W., Siersma, Volkert Dirk, Brodersen, John Brandt & Lund, K. S., 2021, In: BMC Complementary Medicine and Therapies. 21, 1, 7 p., 29.

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

  40. 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

  41. Published

    Infant crying problems related to maternal depressive and anxiety symptoms during pregnancy: a prospective cohort study

    Ölmestig, T. K., Siersma, Volkert Dirk, Birkmose, Anna Rubach, Kragstrup, Jakob & Ertmann, Ruth Kirk, 2021, In: BMC Pregnancy and Childbirth. 21, 1, 11 p., 777.

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

  42. Published

    Influence of educational level on test and treatment for incident hypothyroidism

    Møllehave, Line Tang, Jacobsen, R. K., Linneberg, Allan René, Skaaby, T., Knudsen, Nils Jakob, Jørgensen, T., Kårhus, L. L., Kriegbaum, Margit, Grand, Mia Klinten, Siersma, Volkert Dirk, Lind, B., Andersen, Christen Bertel L, Nygaard, Birte, Medici, B. B., Pedersen, I. B., Ravn-Haren, G. & Thuesen, B. H., 2021, In: Clinical Endocrinology. 94, 6, p. 1025-1034 10 p.

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

  43. Published

    Long-term success after trabeculotomy in primary congenital glaucoma – a study with up to 35 years follow-up

    Kessel, Line, Pedersen, K. B., Siersma, Volkert Dirk, Kappelgaard, P. & Bach-Holm, Daniella, 2021, In: Acta Ophthalmologica. 99, 4, p. 362-368 7 p.

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

  44. Published

    Neurosurgical Admission Later Than 4 h After the Emergency Call Does Not Result in Worse Long-Term Outcome in Subarachnoid Haemorrhage

    Sonne, A., Andersen, J. B., Eskesen, V., Lippert, F., Waldorff, Frans Boch, Siersma, Volkert Dirk, Lohse, Nicolai Rasch & Rasmussen, L. S., 2021, In: Frontiers in Neurology. 12

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

  45. 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

  46. Published

    Psychosocial consequences of a three-month follow-up after receiving an abnormal lung cancer CT-screening result: A longitudinal survey

    Damhus, Christina Sadolin, Quentin, J. G., Malmqvist, J., Siersma, Volkert Dirk & Brodersen, John Brandt, 2021, In: Lung Cancer. 155, p. 46-52 7 p.

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

  47. Published

    Psychosocial consequences of invitation to colorectal cancer screening: A matched cohort study

    Malmqvist, J., Siersma, Volkert Dirk, Hestbech, Mie Sara, Nicolaisdottir, Dagny Ros, Bang, C. W. & Brodersen, John Brandt, 2021, In: Journal of Epidemiology and Community Health. 75, 9, 7 p.

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

  48. 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

  49. Published

    Real-world outcomes for a complete nationwide cohort of more than 3200 teriflunomide-treated multiple sclerosis patients in The Danish Multiple Sclerosis Registry

    Papp, V., Buron, M. D., Siersma, Volkert Dirk, Rasmussen, P. V., Illes, Z., Kant, M., Hilt, C., Mezei, Z., Roshanisefat, H., Sejbaek, T., Weglewski, Arkadiusz, van Wingerden, J., Geertsen, S. S., Bramow, S., Sellebjerg, Finn Thorup & Magyari, M., 2021, In: PLoS ONE. 16, 5, 16 p., 0250820.

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

  50. Published

    Seasonal variation in biopsy-proven giant cell arteritis in Eastern Denmark from 1990-2018

    Konig, E. B., Stormly Hansen, M., Foldager, J., Siersma, Volkert Dirk, Loft, A., Terslev, Lene, Møller Døhn, U., Radmer Jensen, M., Wiencke, Anne Katrine Riise, Faber, Carsten, Hamann, Steffen & Heegaard, Steffen, 2021, In: Acta Ophthalmologica. 99, 5, p. 527-532 6 p.

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

  51. Published

    Symptom burden in multimorbidity: A population-based combined questionnaire and registry study from Denmark

    Willadsen, Tora Grauers, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros, Jarbol, D., Guassora, Ann Dorrit, Reventlow, Susanne & Køster-Rasmussen, Rasmus, 2021, In: BMJ Open. 11, 4, e041877.

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

  52. Published

    The SOFIA pilot trial: a cluster-randomized trial of coordinated, co-produced care to reduce mortality and improve quality of life in people with severe mental illness in the general practice setting

    Rozing, Maarten Pieter, Jønsson, Alexandra Brandt Ryborg, Køster-Rasmussen, Rasmus, Due, Tina Drud, Brodersen, John Brandt, Bissenbakker, Kristine Henderson, Siersma, Volkert Dirk, Mercer, S. W., Guassora, Ann Dorrit, Kjellberg, J., Kjellberg, P. K., Nielsen, Maria Haahr, Christensen, I., Bardram, J. E., Martiny, Frederik Handberg Juul, Møller, Anne, Reventlow, Susanne & SOFIA Study Grp, S. S. G., 2021, In: Pilot and Feasibility Studies. 7, 1, 13 p., 168.

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

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ID: 3512987