Volkert Dirk Siersma

Volkert Dirk Siersma

!!Statistiker, External Lecturer

ORCID: 0000-0003-1941-2681

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  1. Published

    Did psychosocial status, sociodemographics and smoking status affect non-attendance in control participants in the Danish Lung Cancer Screening Trial? A nested observational study

    Malmqvist, J., Siersma, Volkert Dirk, Thorsen, Hanne, Heleno, B., Rasmussen, J. F. & Brodersen, John Brandt, 2020, In: BMJ Open. 10, 2, 8 p.

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

  2. 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

  3. 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

  4. 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

  5. Published

    Informasjonsstyrke og utvalgsstørrelse i kvalitative studier

    Malterud, Kirsti, Siersma, Volkert Dirk & Guassora, Ann Dorrit, 2016, In: Fysioterapeuten. 83, 8, p. 31 1 p.

    Research output: Contribution to journal › Journal article › Research

  6. Published

    Sample size in qualitative interview studies: guided by information power

    Malterud, Kirsti, Siersma, Volkert Dirk & Guassora, Ann Dorrit, Nov 2016, In: Qualitative Health Research. 26, 13, p. 1753-1760 8 p.

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

  7. Published

    Deaths and cardiopulmonary events following colorectal cancer screening—A systematic review with meta-analyses

    Martiny, Frederik Handberg Juul, Bie, A. K. L., Jauernik, Christian Patrick, Rahbek, O. J., Nielsen, S. B., Gram, Emma Grundtvig, Kindt, I. S., Siersma, Volkert Dirk & Brodersen, John Brandt, 2024, In: PLoS ONE. 19, 3, 23 p., e0295900.

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

  8. Published

    Changes in Prescription Routines for Treating Hypothyroidism Between 2001 and 2015: An Observational Study of 929,684 Primary Care Patients in Copenhagen

    Medici, B. B., Nygaard, Birte, la Cour, J. L., Grand, Mia Klinten, Siersma, Volkert Dirk, Nicolaisdottir, Dagny Ros, Lind, B., Olivarius, Niels de Fine & Andersen, Christen Bertel L, 2019, In: Thyroid. 29, 7, p. 910-919

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

  9. Published

    Endo- and exocytic rate constants for spontaneous and protein kinase C-activated T cell receptor cycling

    Bonefeld, Charlotte Menne, Møller Sørensen, T., Siersma, Volkert Dirk, von Essen, Marina Rode, Ødum, Niels & Geisler, Carsten, 2002, In: European Journal of Immunology. 32, 3, p. 616-26 10 p.

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

  10. Published

    Risk of new or recurrent cancer after a high perioperative inspiratory oxygen fraction during abdominal surgery

    Meyhoff, C. S., Jørgensen, Lars Nannestad, Wetterslev, J., Siersma, Volkert Dirk & Rasmussen, L. S., 2014, In: British Journal of Anaesthesia. 113, suppl. 1, p. i74-i81 8 p.

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

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