Baseline characteristics with all subjects and stratified with regard to CTS
| Characteristics | All subjects (n=30 323) | Without CTS (n=29 242) | Incident CTS (n=1081) | P value* |
| Age, years (SD) | 57.5 (7.6) | 57.6 (7.6) | 55.7 (7.5) | <0.001 |
| Sex (n, % male) | 12 099 (40) | 11 804 (40) | 293 (27) | <0.001 |
| BMI (kg/m2) (IQR) | 25.3 (20.3–30.3) | 25.3 (20.3–30.3) | 26.3 (20.9–31.7) | <0.001 |
| Current smoking (n, %) | 8050 (28) | 7769 (28) | 281 (27) | 0.46 |
| Systolic blood pressure, mm Hg, (IQR) | 140 (112–168) | 140 (112–168) | 138 (112–162) | <0.001 |
| Diastolic blood pressure, mm Hg, (IQR) | 85 (75–95) | 85 (75–95) | 84 (72–96) | 0.002 |
| Antihypertensive treatment (n, %) | 5273 (18.5) | 5094 (18.5) | 179 (17.3) | 0.34 |
| Prevalent diabetes (n, %) | 1379 (4.5) | 1291 (4.4) | 88 (8.1) | 0.001 |
| Alcohol consumption (g/day) (IQR) | 7.2 (1.5–15.2) | 7.2 (1.5–15.3) | 6.7 (1.3–13.8) | 0.041 |
P value for group comparison between subjects without CTS and with incident CTS.
*P value for group comparison; independent sample t-test used for age, Mann-Whitney U test used for BMI, systolic and diastolic blood pressure (BP), χ2 test for dichotomous variable. Participants with prevalent CTS are excluded.
BMI, body mass index; CTS, carpal tunnel syndrome.