Skip to main content

Advertisement

Table 3 Reliability of CATI vs. paper survey administration*

From: Inter-method reliability of paper surveys and computer assisted telephone interviews in a randomized controlled trial of yoga for low back pain

Measure Baseline 6 weeks 12 weeks Weighted average
LBP intensity in the previous week 0.87 0.82 0.92 0.87
RMDQ 0.89 0.92 0.98 0.93
Pain medication use in last week1 0.78 0.68 0.72 0.73
Patient satisfaction ------- 0.40 0.86 0.62
Global improvement of back pain ------- 0.24 0.10 0.17
SF-36 Mental Component Summary 0.89 0.86 0.89 0.88
SF-36 Physical Component Summary 0.82 0.82 0.87 0.83
  1. *All reliability statistics are intraclass correlation coefficients except where otherwise noted.
  2. 1Kappa statistic.
  3. Abbreviations: CATI computer assisted telephone interview, LBP low back pain, RMDQ modified Roland Morris Disability Questionnaire, SF-36 the Short Form-36 Health Survey.