Table 1. Distribution by age of cases (overall and according to histological type) and controls. Adjusted (for civil status and place of birth) OR of developing a fully invasive squamous cancer (relative to controls) associated with having been screened in the previous 5 years.
| Age group |
Histological type (%) |
|||||
|---|---|---|---|---|---|---|
| (years) | Controls (%) | Squamous (%) | Adenocarcinomas (%) | NOS and others (%) | All cases (%) | ORb for squamous cancers (95%CI) |
| <40 | 207 (24.9) | 30 (20.3) | 20 (37.7) | 2 (28.6) | 52 (25.0) | 0.32 (0.11–0.95) |
| 40–49 | 250 (30.0) | 50 (33.8) | 11 (20.7) | 1 (14.3) | 62 (29.8) | 0.11 (0.04–0.33) |
| 50–59 | 163 (19.6) | 28 (18.9) | 11 (20.7) | 2 (28.6) | 41 (19.7) | 0.08 (0.02–0.31) |
| 60–69 | 212 (25.5) | 40 (27.0) | 11 (20.7) | 2 (28.6) | 53 (25.5) | 0.22 (0.06–0.83) |
| All ages | 832 (100) | 148 (71.1) | 53 (25.5) | 7 (3.4) | 208 (100) | 0.17 (0.10–0.30) |
a
Excluding tests performed the year before the index date.
b
Baseline: never screened (OR=1.0). CI=confidence interval; OR=odds ratio; NOS=not otherwise specified.