Table 7. PR Status in Women With Undergoing Annual, Biennial, and Less-Frequent-Than-Biennial Breast Cancer Screening.
| PR status | Screening frequency |
Total | ||
|---|---|---|---|---|
| Annual | Biennial | Less frequent than biennial | ||
| Not determined | 358 (35.1%) | 59 (24.4%) | 10 (15.6%) | 427 (32.2%) |
| Negative | 174 (17.0%) | 51 (21.1%) | 15 (23.4%) | 240 (18.1%) |
| Positive | 489 (47.9%) | 132 (54.5%) | 39 (60.9%) | 660 (49.7%) |
| Total | 1,021 (100.0%) | 242 (100.0%) | 64 (100.0%) | 1,327 (100.0%) |
χ2 = 18.9, df = 2, P = 0.001, Cramer’s V = 0.08. PR: progesterone receptor.