Inter-method reliability of paper surveys and computer assisted telephone interviews in a randomized controlled trial of yoga for low back painReportar como inadecuado




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BMC Research Notes

, 7:227

First Online: 09 April 2014Received: 22 October 2013Accepted: 02 April 2014DOI: 10.1186-1756-0500-7-227

Cite this article as: Cerrada, C.J., Weinberg, J., Sherman, K.J. et al. BMC Res Notes 2014 7: 227. doi:10.1186-1756-0500-7-227

Abstract

BackgroundLittle is known about the reliability of different methods of survey administration in low back pain trials. This analysis was designed to determine the reliability of responses to self-administered paper surveys compared to computer assisted telephone interviews CATI for the primary outcomes of pain intensity and back-related function, and secondary outcomes of patient satisfaction, SF-36, and global improvement among participants enrolled in a study of yoga for chronic low back pain.

ResultsPain intensity, back-related function, and both physical and mental health components of the SF-36 showed excellent reliability at all three time points; ICC scores ranged from 0.82 to 0.98. Pain medication use showed good reliability; kappa statistics ranged from 0.68 to 0.78. Patient satisfaction had moderate to excellent reliability; ICC scores ranged from 0.40 to 0.86. Global improvement showed poor reliability at 6 weeks ICC = 0.24 and 12 weeks ICC = 0.10.

ConclusionCATI shows excellent reliability for primary outcomes and at least some secondary outcomes when compared to self-administered paper surveys in a low back pain yoga trial. Having two reliable options for data collection may be helpful to increase response rates for core outcomes in back pain trials.

Trial registrationClinicalTrials.gov: NCT01761617. Date of trial registration: December 4, 2012.

KeywordsSurvey methods Reliability Back pain CATI Electronic supplementary materialThe online version of this article doi:10.1186-1756-0500-7-227 contains supplementary material, which is available to authorized users.

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Autor: Christian J Cerrada - Janice Weinberg - Karen J Sherman - Robert B Saper

Fuente: https://link.springer.com/







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