Table 1 Baseline characteristics of the study population, stratified on gender
Women (n = 267) | Men (n = 153) | |
|---|---|---|
Number and % | Number and % | |
Tobacco status | ||
No | 121 (45 %) | 79 (52 %) |
Yes | 145 (54 %) | 74 (48 %) |
Education/profession | ||
Media/design | 99 (37.1 %) | 36 (23.5 %) |
Hairdresser/electrician | 168 (62.9 %) | 117 (76.5 %) |
Ethnicity | ||
Western | 222 (84 %) | 124 (82 %) |
Non-western | 43 (16 %) | 28 (18 %) |
Socioeconomic background | ||
Low | 39 (15 %) | 25(16 %) |
Moderate or high | 223 (85 %) | 128 (84 %) |
Low back pain | ||
No | 111 (42 %) | 84 (55 %) |
Low | 79 (30 %) | 32 (21 %) |
Moderate | 30 (11 %) | 13 (8 %) |
High | 45 (17 %) | 24 (16 %) |
Physical activity level | ||
Low (≤1 pr wk) | 161 (60 %) | 56 (37 %) |
Moderate/high (≥2 pr wk) | 106 (40 %) | 97 (63 %) |
Body mass index | ||
Underweight (<18.5) | 27 (11 %) | 18 (12 %) |
Normal (18.5–25) | 191 (74 %) | 104 (68 %) |
Overweight (>25) | 39 (15 %) | 31 (20 %) |
Mean ± SD | Mean ± SD | |
Physical work demands (1–14) | 6.5 (±2.0) | 5.5 (±2.5) |