Table 4.
HRs for cervical cancer death according to screening frequency and time interval since the last screening
| Variables | No. of CC deaths | Person-years | Death rate per 1000 | Fully adjusted HR (95% CI)1 | |
|---|---|---|---|---|---|
| Screening frequency | |||||
| Never screened | 734 | 62,828.8 | 11.7 | 1.00 (reference) | |
| 1 time | 257 | 45,947.9 | 5.6 | 0.67 (0.58, 0.77) | |
| 2 times | 106 | 22,148.5 | 4.8 | 0.57 (0.46, 0.70) | |
| 3 times or more | 65 | 17,859.4 | 3.6 | 0.52 (0.40, 0.67) | |
| Time interval since screening (mo) | |||||
| Never screened | 734 | 62,828.8 | 11.7 | 1.00 (reference) | |
| ≤23 | 255 | 68,064.1 | 3.7 | 0.54 (0.47, 0.63) | |
| 24-35 | 35 | 4,559.4 | 7.7 | 0.69 (0.49, 0.97) | |
| 36-59 | 75 | 8,637.7 | 8.7 | 0.76 (0.60, 0.96) | |
| ≥60 | 63 | 4,694.5 | 13.4 | 0.82 (0.64, 1.09) | |
HR, hazard ratio; CC, cervical cancer; CI, confidence interval.
1
Adjusted for age, socioeconomic status, stage, and histological subtype.