Table 3.
The odds (OR, 95% CI) that women diagnosed with breast cancer (exposed) compared to women without breast cancer (unexposed) would experience an increase in income above the increase expected for women in the work force during each year of follow-up
| Follow-up | Exposed group | Unexposed group | OR (95% CI) | ||
|---|---|---|---|---|---|
| N | Proportion with an increase in incomea (%) | N | Proportion with an increase in incomea (%) | ||
| 1 year | 12,858 | 41.1 | 60,066 | 42.1 | 0.96 (0.93–1.00) |
| 2 year | 11,834 | 36.1 | 58,474 | 40.4 | 0.83 (0.80–0.87) |
| 3 year | 10,012 | 33.9 | 51,895 | 38.8 | 0.81 (0.77–0.84) |
| 4 year | 8168 | 33.6 | 44,297 | 38.1 | 0.82 (0.78–0.87) |
| 5 year | 6530 | 32.8 | 36,661 | 36.8 | 0.84 (0.79–0.89) |
| 6 year | 5240 | 31.8 | 30,112 | 35.5 | 0.84 (0.79–0.90) |
| 7 year | 4122 | 33.2 | 24,377 | 35.0 | 0.93 (0.86–0.99) |
| 8 year | 3259 | 33.5 | 19,435 | 35.3 | 0.92 (0.85–1.00) |
| 9 year | 2475 | 33.8 | 15,041 | 34.0 | 0.98 (0.90–1.08) |
| 10 year | 1808 | 34.7 | 10,999 | 33.8 | 1.01 (0.91–1.13) |
aThe increase in income was defined as a larger increase than the change expected, in the general female population, based on age and calendar year