Table 2 Relative risks (RR) of CMSC in different body regions at 11-year follow-up, according to insomnia status at baseline (316 with insomnia and 13,113 without). Outcome: type of CMSC vs. no CMSC
Type of CMSC | No. of cases (prevalence) | Partly a adjusted RR (95% CI) | Fully b adjusted RR (95% CI) |
|---|---|---|---|
CMSC screening | |||
 No insomnia | 4765 (36.3%) | 1.00 | 1.00 |
 Insomnia | 144 (45.6%) | 1.25 (1.10–1.41) | 1.16 (1.03–1.32) |
CWMSC | |||
 No insomnia | 1338 (10.2%) | 1.00 | 1.00 |
 Insomnia | 62 (19.6%) | 1.90 (1.53–2.35) | 1.58 (1.26–1.98) |
Neck | |||
 No insomnia | 1950 (14.9%) | 1.00 | 1.00 |
 Insomnia | 74 (23.4%) | 1.58 (1.31–1.92) | 1.34 (1.10–1.63) |
Shoulder | |||
 No insomnia | 2314 (17.6%) | 1.00 | 1.00 |
 Insomnia | 89 (28.2%) | 1.57 (1.32–1.86) | 1.41 (1.18–1.68) |
Upper back | |||
 No insomnia | 798 (6.1%) | 1.00 | 1.00 |
 Insomnia | 29 (9.2%) | 1.69 (1.20–2.38) | 1.40 (0.99–1.97) |
Elbow | |||
 No insomnia | 642 (4.9%) | 1.00 | 1.00 |
 Insomnia | 25 (7.9%) | 1.80 (1.24–2.60) | 1.56 (1.07–2.27) |
Lower back | |||
 No insomnia | 1822 (13.9%) | 1.00 | 1.00 |
 Insomnia | 69 (21.8%) | 1.59 (1.30–1.95) | 1.36 (1.11–1.68) |
Hands/wrist | |||
 No insomnia | 1065 (8.1%) | 1.00 | 1.00 |
 Insomnia | 38 (12.0%) | 1.57 (1.18–2.10) | 1.35 (1.01–1.82) |
Hips | |||
 No insomnia | 1412 (10.8%) | 1.00 | 1.00 |
 Insomnia | 60 (19.0%) | 1.74 (1.40–2.17) | 1.56 (1.24–1.95) |
Knees | |||
 No insomnia | 1396 (10.6%) | 1.00 | 1.00 |
 Insomnia | 50 (15.8%) | 1.53 (1.20–1.95) | 1.34 (1.05–1.73) |
Ankles/Feet | |||
 No insomnia | 924 (7.0%) | 1.00 | 1.00 |
 Insomnia | 40 (12.7%) | 1.83 (1.39–2.42) | 1.60 (1.19–2.14) |