Table 2.
Medical history
| Cases | Referents | ||||||
| Mean or % | SD | Mean or % | SD | p < | OR | 95%CI | |
| N | 138 | 401 | |||||
| Tobacco use, % | n.s. | 1.08 | 0.89-1.31 | ||||
| Never smoked | 34.6 | 45.0 | |||||
| Ex-smoker | 43.4 | 31.0 | |||||
| Current smoker | |||||||
| 1-14 g/day | 14.7 | 14.8 | |||||
| 15-24 g/day | 4.4 | 7.4 | |||||
| ≥25 g/day | 2.9 | 1.8 | |||||
| Taking snuff | 4.4 | 3.1 | |||||
| Low physical activity, % | |||||||
| During leisure time | 86.6 | 80.3 | n.s. | 0.99 | 0.72-1.35 | ||
| During work | 50.0 | 43.8 | 0.001. | 0.24 | 0.18-0.33 | ||
| Height, m | 1.65 | 0.06 | 1.67 | 0.06 | 0.05 | 0.96 | 0.93-0.99 |
| Weight, kg | |||||||
| At age 20 | 55.9 | 7.3 | 57.7 | 7.8 | 0.05 | 0.97 | 0.94-0.99 |
| Five years ago | 69.7 | 12.5 | 57.7 | 7.8 | 0.05 | 1.02 | 1.00-1.03 |
| At present | 72.8 | 13.9 | 68.1 | 11.8 | 0.0005 | 1.03 | 1.01-1.05 |
| Body mass index, BMI | |||||||
| At age 20 | 20.6 | 2.5 | 20.8 | 2.5 | n.s. | 0.97 | 0.89-1.05 |
| Five years ago | 25.7 | 4.6 | 24.1 | 4.3 | 0.0005 | 1.08 | 1.04-1.13 |
| Maximum | 28.9 | 5.3 | 26.4 | 5.2 | 0.0001 | 1.08 | 1.05-1.12 |
| At present | 26.8 | 4.9 | 24.6 | 4.1 | 0.0001 | 1.11 | 1.07-1.16 |
| Body mass distribution, % | n.s. | ||||||
| Waist | 24.0 | 19.2 | 1.22 | 0.75-1.98 | |||
| Hips/thighs | 12.8 | 19.4 | 0.64 | 0.36-1.15 | |||
| Both sites equal | 63.2 | 61.4 | 1.00 | - | |||
| Ever had underweight, % | 35.6 | 24.5 | 0.05 | 1.70 | 1.12-2.59 | ||
| Excessive food intake, % | 17.9 | 8.0 | 0.005 | 2.53 | 1.42-4.49 | ||
Lifestyle variables, weight and weight history, fibromyalgia duration and menstrual history.