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 | |||
Characteristics of consenters versus non-consenters and participants versus non-participants.
n = number of responders, sd = standard deviation, ns = non-significant to the level of p = 0.05.