Table 2. Detection rate (per 10−4 person-years) of CIN2+ by age class.
| Age class (years) | No. of cases (N=1110) | Person-years (N=1 714 550) | DR (95% CI) (per 10−4 person-years) |
|---|---|---|---|
| 25–29 | 205 | 145 296 | 14.11 (12.30–16.18) |
| 30–34 | 252 | 229 902 | 10.96 (9.69–12.40) |
| 35–39 | 217 | 245 243 | 8.85 (7.75–10.11) |
| 40–44 | 192 | 259 391 | 7.40 (6.43–8.53) |
| 45–49 | 111 | 265 922 | 4.17 (3.47–5.03) |
| 50–54 | 57 | 249 725 | 2.28 (1.76–2.96) |
| 55–59 | 52 | 213 905 | 2.43 (1.85–3.19) |
| 60–64 | 24 | 105 166 | 2.28 (1.53–3.41) |
CI=confidence interval; CIN=cervical intraepithelial neoplasia; DR=detection rate.
Score test for trend of rates: P-value<0.0001.