Table 2 Baseline characteristics of the control, phone and internet group, and of all participants
| Â | Control n=460 | Phone n=462 | Internet n=464 | All n=1386 |
|---|---|---|---|---|
Male, n (%) | 306 (66.5) | 321 (69.5) | 302 (65.1) | 929 (67.0) |
Age (years) | 43.2 (8.7) | 43.2 (8.8) | 43.4 (8.4) | 43.3 (8.6) |
Body weight (kg) | 92.8 (13.6) | 93.3 (14.1) | 92.7 (14.3) | 92.9 (14.0) |
Body Mass Index (kg/m2) | 29.6 (3.7) | 29.5 (3.5) | 29.6 (3.4) | 29.6 (3.5) |
Health utilitya, b | 0.908 (0.136) | 0.917 (0.129) | 0.915 (0.117) | 0.913 (0.128) |
Sick leave in previous 3 months (days) c | 1.9 (6.0) | 3.4 (11.1) | 2.6 (9.6) | 2.7 (9.2) |
 0 days, n (%) | 267 (63.1) | 291 (62.5) | 315 (70.6) | 873 (66.4) |
 1 – 7 days, n (%) | 130 (30.7) | 114 (25.6) | 95 (21.3) | 339 (25.8) |
 8 – 30 days, n (%) | 24 (5.7) | 28 (6.3) | 28 (6.3) | 80 (6.1) |
 > 30 days, n (%) | 2 (0.5) | 13 (2.9) | 8 (1.8) | 23 (1.7) |