Table 2.
Prevalence and odds ratios (OR) of self-reported CTS by sociodemographic and health factors of interest among office workers (Kuwait City, 2008)
| Total respondents | % (n) with CTS | OR | 95% CI for OR | Adjusted OR* | 95% CI for Adjusted OR* | |
|---|---|---|---|---|---|---|
| Gender |
456 |
|
|
|
|
|
| Male |
254 |
13.4 (34) |
1.0 |
Reference |
1.0 |
Reference |
| Female |
202 |
25.3 (51) |
2.2 |
1.4, 3.5 |
4.7 |
2.1, 10.3 |
| Age group (years) |
456 |
|
|
|
|
|
| 20–30 |
276 |
16.7 (46) |
1.0 |
Reference |
|
|
| 31–40 |
109 |
27.5 (30) |
1.9 |
1.1, 3.2 |
|
|
| 41–50 |
54 |
16.7 (9) |
1.0 |
0.5, 2.2 |
|
|
| 51+ |
17 |
17.7 (3) |
1.1 |
0.3, 3.9 |
|
|
| Body mass index |
422 |
|
|
|
|
|
| Underweight |
8 |
0.0 (0) |
NE |
NE |
omitted |
omitted |
| Normal |
160 |
16.2 (26) |
1.0 |
Reference |
1.0 |
Reference |
| Overweight |
167 |
15.6 (26) |
1.0 |
0.5, 1.7 |
0.8 |
0.3, 1.9 |
| Obese |
87 |
29.9 (26) |
2.2 |
1.2, 4.1 |
3.7 |
1.5, 9.6 |
| Self-rated health |
404 |
|
|
|
|
|
| Excellent/very good |
170 |
10.0 (17) |
0.4 |
0.2, 3.3 |
|
|
| Good |
160 |
23.1 (37) |
1.0 |
Reference |
|
|
| Fair/poor |
74 |
35.1 (26) |
1.8 |
1.0, 3.3 |
|
|
| Previous wrist injury |
405 |
|
|
|
|
|
| Yes |
82 |
29.3 (24) |
1.9 |
1.1, 3.3 |
|
|
| No |
323 |
18.0 (58) |
1.0 |
Reference |
|
|
| Computer use |
389 |
|
|
|
|
|
| None |
8 |
0.0 (0) |
NE |
NE |
|
|
| < 3 hours per day |
111 |
14.4 (16) |
1.0 |
Reference |
|
|
| > 3 hours per day |
270 |
21.1 (57) |
1.7 |
0.9, 3.1 |
|
|
| Number of comorbidities |
373 |
|
|
|
|
|
| 0 |
244 |
10.2 (25) |
1.0 |
Reference |
1.0 |
Reference |
| 1 |
70 |
28.6 (20) |
3.5 |
1.8, 6.8 |
4.9 |
2.0, 12.3 |
| 2 |
35 |
31.4 (11) |
4.0 |
1.8, 9.2 |
3.3 |
1.1, 9.7 |
| 3+ |
24 |
62.5 (15) |
14.6 |
5.8, 36.8 |
14.9 |
4.8, 46.5 |
| Exercise frequency |
361 |
|
|
|
|
|
| 0 hours/week |
137 |
24.8 (34) |
1.0 |
Reference |
|
|
| 1 hour/week |
112 |
21.4 (24) |
0.8 |
0.5, 1.5 |
|
|
| ≥2 hours/week |
112 |
9.8 (11) |
0.3 |
0.2, 0.7 |
|
|
| Smoking status |
355 |
|
|
|
|
|
| Yes |
94 |
19.1 (18) |
1.0 |
Reference |
|
|
| No | 261 | 19.2 (50) | 1.0 | 0.5, 1.8 |
Abbreviations: CI, confidence interval; CTS, carpal tunnel syndrome; NE, not estimable; OR, odds ratio.
*Estimated from multivariable logistic regression. Variables shown remained in best-fit model following backward selection starting from a model including all variables in the table; n = 245 respondents with no missing values.