Table 2 Rescreening rates by breast density notification status and the corresponding odds ratios (OR) and 95% confidence intervals (CI) stratified by age group and screening round
Age | Proportion of screening events relating to women notified as dense who rescreened | Proportion of screening events relating to women not notified who rescreened | Unadjusted OR (95% CI) | Multivariable adjusteda OR (95% CI) |
|---|---|---|---|---|
First screeners | ||||
Younger age | 7657/15,032 (50.9%) | 21,629/40,986 (52.8%) | 0.93 (0.90–0.96) | 0.89 (0.86–0.93) |
Targeted age | 7220/12,498 (57.8%) | 33,569/59,866 (56.1%) | 1.07 (1.03–1.11) | 1.04 (1.01–1.09) |
Older age | 29/124 (23.4%) | 372/1651 (22.5%) | 1.05 (0.68–1.62) | 0.99 (0.64–1.54) |
Second screeners | ||||
Younger age | 5964/8993 (66.3%) | 17,801/26,277 (67.7%) | 0.94 (0.89, 0.99) | 0.91 (0.87, 0.96) |
Targeted age | 8313/12,600 (66.0%) | 44,470/68,720 (64.7%) | 1.05 (1.01–1.09) | 1.03 (0.99–1.07) |
Older age | 50/165 (30.3%) | 530/1859 (28.5%) | 1.09 (0.77–1.54) | 1.07 (0.75–1.52) |
Third and subsequent screeners | ||||
Younger age | 7325/9404 (77.9%) | 24,492/30,596 (80.0%) | 0.88 (0.82, 0.93) | 0.84 (0.79, 0.90) |
Targeted age | 58,022/73,027 (79.5%) | 430,847/542,866 (79.4%) | 0.99 (0.96–1.01) | 0.98 (0.95–1.00) |
Older age | 2273/5479 (41.5%) | 29,567/71,562 (41.3%) | 0.97 (0.91–1.05) | 0.99 (0.92–1.07) |