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Table 2 Baseline characteristics.

From: Subacute and chronic, non-specific back and neck pain: cognitive-behavioural rehabilitation versus primary care. A randomized controlled trial

  Rehabilitation group (n = 63) Primary-care group (n = 62) p-value
Women 33 (52 [40 – 65]%) 35 (56 [44 – 69]%) NS
Age (years) 42.2 [39.8 – 44.6] 43.0 [40.4 – 45.7] NS
Neck-pain domination 17 (27 [16 – 38]%) 21 (34 [22 – 46]%) NS
Widespread (= back + neck) pain 55 (87 [79 – 96]%) 45 (73 [61 – 84]%) .04
Pain score (VAS, 0 – 100; median (IQR))[48]:    
   "Just now" 61 (30) 53 (30) NS
   "Worst last week" 77 (29) 73 (26) NS
Health-related quality of life (EQ-5D)[49]    
   (median (IQR)) .489 (.332) .497 (.332) NS
Immigrants (= born outside Sweden) 19 (30 [19 – 42]%) 15 (24 [13 – 35]%) NS
Single life 19 (30 [19 – 42]%) 21 (34 [22 – 46]%) NS
Low education (= at most junior high school) 37 (60 [47 – 72]%) 35 (56 [44 – 69]%) NS
Blue-collar work (of the non-unemployed) 41 (87 [77 – 97]%) 47 (87 [77 – 97]%) NS
Unemployed 14 (22 [12 – 33]%) 15 (24 [13 – 35]%) NS
Previous sick-listing (days)* 223 [189 – 257] 222 [188 – 256] NS
Lifting capacity (kg; mean):    
   PILE lumbar [36] 12.3 [10.4 – 14.2] 12.4 [10.3 – 14.6] NS
   PILE cervical [36] 11.5 [9.7 – 13.3] 11.6 [9.6 – 13.6] NS
  1. Descriptive statistics. The 95% confidence intervals are shown within brackets. Bold figures indicate a significant difference.
  2. NS = Non-significant; IQR = Inter-quartile-range.
  3. * = Net days over the 18 months preceding baseline.