From: Effects of psychosocial work factors on number of pain sites: The role of sleep quality as mediator
 | Employees who responded to sleep and pain items at baseline and follow-up (N = 6277) | ||
---|---|---|---|
Age (y) | < 30 | 458 | 7.3% |
 | 30–39 | 1586 | 25.3% |
 | 40–49 | 2113 | 33.7% |
 | 50–59 | 1702 | 27.1% |
 | < 59 | 418 | 6.7% |
Gender | Male | 2817 | 44.9% |
 | Female | 3460 | 55.1% |
Difficulties initiating sleep* | 0 times | 2223 | 35.7% |
 | 1–3 times per month | 2292 | 36.8% |
 | 1–2 times per week | 1044 | 16.8% |
 | 3–5 times per week | 485 | 7.8% |
 | 6–7 times per week | 182 | 2.9% |
Disturbed sleep* | 0 times | 1552 | 24.9% |
 | 1–3 times per month | 2237 | 35.9% |
 | 1–2 times per week | 1279 | 20.5% |
 | 3–5 times per week | 826 | 13.3% |
 | 6–7 times per week | 337 | 5.4% |
Neck pain* | Not troubled | 5084 | 81.0% |
 | Troubled | 1193 | 19.0% |
Shoulder/Upper arm pain* | Not troubled | 5197 | 82.8% |
 | Troubled | 1080 | 17.2% |
Underarm/Hand pain* | Not troubled | 5781 | 92.1% |
 | Troubled | 496 | 7.9% |
Back pain* | Not troubled | 5316 | 84.7% |
 | Troubled | 961 | 15.3% |
Leg pain* | Not troubled | 5648 | 90.0% |
 | Troubled | 629 | 10.0% |
Number of pain sites* | 0 | 3824 | 60.9% |
 | 1 | 1266 | 20.2% |
 | 2 | 679 | 10.8% |
 | 3 | 339 | 5.4% |
 | 4 | 127 | 2.0% |
 | 5 | 42 | 0.7% |