Table 1 Group characteristics.
Consenters | Non-consenters | Level of sign. | Participants | Non-participants | Level of sign. | ||
|---|---|---|---|---|---|---|---|
(n = 371) | (n = 202) | p | (n = 363) | (n = 395) | P | ||
Age (Years) | N | 371 | 198 | 363 | 390 | ||
mean | 44.7 | 44.9 | ns | 44.8 | 43.9 | ns | |
sd | 9.4 | 11.1 | 9.3 | 11.5 | |||
Sex (Females) | N | 371 | 201 | 363 | 372 | ||
% | 81 | 81 | ns | 81 | 80 | ns | |
BMI (kg/m2) | N | 323 | 163 | 312 | 185 | ||
mean | 26.8 | 25.6 | <.05 | 26.9 | 25.5 | <.01 | |
sd | 4.9 | 5.1 | 4.8 | 5.0 | |||
Job seniority (Years) | N | 300 | 150 | 290 | 171 | ||
mean | 9.1 | 10.1 | ns | 9.2 | 10.0 | ns | |
sd | 8.6 | 9.6 | 8.5 | 9.7 | |||
Working hours (Hours/week) | N | 338 | 191 | 327 | 213 | ||
mean | 34.9 | 34.0 | ns | 34.7 | 34.2 | ns | |
sd | 6.3 | 7.3 | 6.7 | 6.9 | |||
PHA (1-4) | N | 305 | 149 | 294 | 167 | ||
mean | 2.3 | 2.3 | ns | 2.3 | 2.3 | ns | |
sd | 0.9 | 0.9 | 0.9 | 0.9 | |||
Diseases (1-4) | N | 112 | 62 | 111 | 63 | ||
mean | 0.7 | 0.3 | <.01 | 0.7 | 0.3 | <.01 | |
sd | 1.0 | 0.6 | 1.0 | 0.6 |