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Table 2 Baseline information (% or mean) of respondents and non-respondents.

From: Predictive factors of adherence to frequency and duration components in home exercise programs for neck and low back pain: an observational study

Variables Groups Difference between groups
  Respondents
% or mean
(n1 = 184)
Non-respondents
% or mean
(n2 = 83)
Respondents minus Non-respondents
% (95%CI)
CHARACTERISTICS OF PATIENTS    
Gender    
   Male 19.6 9.9 9.7 (-0.5 to 19.6)
Age    
   18-39 30.4 48.7 -18.3 (-31.2 to -5.3)
   40-59 46.2 44.9 1.3 (-11.8 to 14.5)
   >59 23.4 6.4 17.0 (8.8 to 25.1)
Education level    
   Without studies 20.3 14.5 5.8 (-4.0 to 15.8)
   Primary studies 51.7 63.2 -11.5 (-24.5 to 1.8)
   Secondary and University 27.9 22.4 5.5 (-5.9 to 17.1)
Work participation    
   Yes 60.2 66.2 -6.0 (-19.0 to 7.0)
Sick leave    
   Yes 40.0 37.0 3.0 (-13.9 to 19.9)
CHARACTERISTICS OF PAIN    
Location    
   Neck pain 63.1 66.2 -3.1 (-15.9 to 9.6)
Pain-disability    
   High level 61.8 65.8 -4.0 (-16.8 to 8.9)
Pain intensity (0-10), mean (SD) 7.2 (1.8) 7.2 (2.2) 0.0 (-0.5 to 0.5)