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Table 1 Characteristics of 45 adults with chronic low back pain randomized to complete both paper surveys and computer assisted telephone interviews*

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

  Paper and CATI (n = 45)
Sociodemographics  
Mean age, years (SD) 48.0 (10.6)
Female 34 (76)
Race  
  White 14 (31)
  Black 24 (53)
  Other 7 (16)
Hispanic 4 (9)
US born 39 (87)
Education  
  High school or less 15 (33)
  Beyond high school 30 (67)
Employment  
  Unemployed 13 (29)
  Disabled 8 (18)
  Employed full or part time 20 (44)
  Other 4 (9)
Income  
  ≤$30,000 25 (56)
  ≥$30,000 17 (38)
  Missing 3 (7)
Health Insurance  
  Public-funded only 19 (42)
  Private 26 (58)
  None 0
Back Pain History  
Duration of LBP  
  <1 year 2 (4)
  1-3 years 11 (24)
  4-9 years 20 (44)
  >10 years 11 (24)
Missing 1 (2)
Mean days of LBP in the last 3 months (SD) 63 (27)
Mean hours/day of LBP (SD) 9 (7)
Mean days cut back activities due to LBP in the last 4 weeks (SD) 12 (9)
Sciatica 15 (33)
  1. *Except where indicated, all results are presented as n (%).
  2. Abbreviations: CATI computer assisted telephone interview, SD standard deviation, LBP low back pain.