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