From: Risk factors for operated carpal tunnel syndrome: a multicenter population-based case-control study
 |  |  | Univariate | Multivariate* |
---|---|---|---|---|
 | Cases (n = 191) | Controls (n = 286) | OR (95% CI) | OR (95% CI) |
Socio-occupational status | Â | Â | Â | Â |
   White collar | 19 | 134 | 1.0 | 1.0 |
   Blue collar/housewife†| 172 | 152 | 8.0 (4.5-14.2) | 7.1 (4.0-12.7) |
BMI (kg/m2) | Â | Â | Â | Â |
   <25 | 80 | 167 | 1.0 | 1.0 |
   25-29 | 69 | 91 | 1.6 (1.0-2.4) | 1.4 (0.9-2.4) |
   ≥30 | 41 | 25 | 3.4 (1.9-6.1) | 3.3 (1.6-6.6) |
Height, cm | Â | Â | Â | Â |
   <165 (women) or <175 (men) | 149 | 165 | 1.0 | 1.0 |
   ≥165 (women) or ≥175 (men) | 41 | 121 | 0.4 (0.2-0.6) | 0.5 (0.3-0.8) |
Alcohol consumption | Â | Â | Â | Â |
   Never | 67 | 83 | 1.0 | 1.0 |
   1-2 drinks/wk | 37 | 56 | 0.8 (0.5-1.4) | 0.8 (0.4-1.6) |
   3-6 drinks/wk | 11 | 26 | 0.5 (0.2-1.1) | 0.4 (0.1-1.1) |
   1-2 drinks/day | 56 | 80 | 0.9 (0.5-1.4) | 0.8 (0.5-1.5) |
   3 drinks/day or more | 20 | 41 | 0.6 (0.3-1.1) | 0.7 (0.3-1.6) |
Family history of CTS | Â | Â | Â | Â |
   None | 160 | 260 | 1.0 | 1.0 |
   Father/mother | 15 | 22 | 1.1 (0.6-2.2) | 1.3 (0.5-3.1) |
   Sibling | 15 | 3 | 8.1 (2.3-29.2) | 6.6 (1.5-29.4) |
Rheumatoid arthritis | Â | Â | Â | Â |
   No | 160 | 267 | 1.0 | 1.0 |
   Yes | 30 | 19 | 2.6 (1.4-4.9) | 2.2 (1.0-4.6) |
Trigger finger | Â | Â | Â | Â |
   No | 157 | 271 | 1.0 | 1.0 |
   Yes | 33 | 15 | 3.8 (2.0-7.3) | 2.7 (1.3-5.8) |
Diabetes mellitus | Â | Â | Â | Â |
   No | 181 | 280 | 1.0 | 1.0 |
   Yes | 9 | 6 | 2.3 (0.8-6.7) | 2.6 (0.7-8.7) |
Renal failure | Â | Â | Â | Â |
   No | 187 | 282 | 1.0 |  |
   Yes | 3 | 4 | 1.1 (0.2-5.1) |  |
Thyroid disorders | Â | Â | Â | Â |
   No | 163 | 253 | 1.0 |  |
   Yes | 27 | 33 | 1.3 (0.7-2.2) |  |
Wrist fractures | Â | Â | Â | Â |
   None | 180 | 262 | 1.0 |  |
   At least one | 11 | 24 | 0.7 (0.3-1.4) |  |
Smoking status | Â | Â | Â | Â |
   Never | 103 | 147 | 1.0 |  |
   Former | 31 | 65 | 0.7 (0.4-1.1) |  |
   Current | 57 | 73 | 1.1 (0.7-1.7) |  |
Education level | Â | Â | Â | Â |
   Below high school diploma | 152 | 138 | 1.0 |  |
   High school diploma or higher | 39 | 148 | 0.2 (0.2-0.4) |  |