Two to five repeated measurements per patient reduced the required sample size considerably in a randomized clinical trial for patients with inflammatory rheumatic diseases-Reference-Cited by-同舟云学术

Two to five repeated measurements per patient reduced the required sample size considerably in a randomized clinical trial for patients with inflammatory rheumatic diseases

Published:2013-02-01 Issue:1 Volume:6 Page:
ISSN:1756-0500
Container-title:BMC Research Notes
language:en
Short-container-title:BMC Res Notes

Author:

Smedslund Geir,Zangi Heidi Andersen,Mowinckel Petter,Hagen Kåre Birger

Publisher

Springer Science and Business Media LLC

Subject

General Biochemistry, Genetics and Molecular Biology,General Medicine

Link

http://link.springer.com/content/pdf/10.1186/1756-0500-6-37.pdf

Reference9 articles.

1. Heiberg T, Kvien TK, Dale Ø, Mowinckel P, Aanerud GJ, Songe-Møller AB, et al: Daily health status registration (patient diary) in patients with rheumatoid arthritis: a comparison between personal digital assistant and paper-pencil format. Arthritis Rheum. 2007, 57: 454-460. 10.1002/art.22613.

2. Mowinckel P, Hagen KB, Heiberg T, Kvien TK: Repeated measures in rheumatoid arthritis reduced the required sample size in a two-armed clinical trial. J Clin Epidemiol. 2008, 61: 940-944. 10.1016/j.jclinepi.2007.12.004.

3. Keen HI, Pile K, Hill CL: The prevalence of underpowered randomized clinical trials in rheumatology. J Rheumatol. 2005, 32: 2083-2088.

4. Zangi HA, Mowinckel P, Finset A, Eriksson LR, Høystad TØ, Lunde AK, Hagen KB: A mindfulness-based group intervention reduced psychological distress and fatigue in patients with inflammatory rheumatic joint diseases: a randomised controlled trial. Ann Rheum Dis. 2012, 71: 911-917. 10.1136/annrheumdis-2011-200351.

5. Malt UF: “The validity of the General Health Questionnaire in a sample of accidentally injured adults”. Acta Psychiatr Scand Suppl. 1989, 355: 103-112.

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