Table 2.
Incidence rate ratios of CTS from Poisson regression models. Estimates based on observed data on surgically treated cases and Monte Carlo simulation of CTS diagnosis. Non-manual workers, Tuscany region, Italy, 1997–2000.
| Observed surgically treated CTS cases | Simulated CTS diagnosis | |||
|---|---|---|---|---|
| IRR | 95% CI | IRR | 95% CI | |
| Gender | ||||
| Men | 1.00 | Ref. | 1.00 | Ref. |
| Women | 5.78 | 4.93–6.76 | 4.01 | 3.34–4.93 |
| Age (years) | ||||
| 25–29 | 1.00 | Ref. | 1.00 | Ref. |
| 30–34 | 1.66 | 1.17–2.38 | 1.71 | 1.17–2.48 |
| 35–39 | 2.29 | 1.64–3.21 | 2.27 | 1.59–3.24 |
| 40–44 | 3.71 | 2.68–5.12 | 3.65 | 2.59–5.15 |
| 45–49 | 4.44 | 3.22–6.12 | 4.49 | 3.18–6.31 |
| 50–54 | 6.38 | 4.64–8.76 | 6.33 | 4.52–8.88 |
| 55–59 | 5.68 | 4.03–8.01 | 5.69 | 3.92–8.17 |
CI, confidence interval; CTS, carpal tunnel syndrome; Ref., reference category.