TABLE 3.
Breast cancer stages at diagnosis prior to the COVID-19 pandemic (2013–2019) compared to those during the pandemic (2020–2021) for Brazil as a whole and its regions (Brazil, 2013–2021).
| Stage/Region | Period (Year) | Total | p-value* | |
|---|---|---|---|---|
| 2013–2019 | 2020–2021 | |||
| Brazil | ||||
| I and II | 48,567 (59.2) | 8,865 (48.5) | 57,432 (57.3) | 0.001 |
| III and IV | 33,440 (40.8) | 9,419 (51.5) | 42,859 (42.7) | |
| Midwest | ||||
| I and II | 2,378 (54.2) | 345 (32.9) | 2,723 (50.1) | 0.001 |
| III and IV | 2,008 (45.8) | 704 (67.1) | 2,712 (49.9) | |
| Northeast | ||||
| I and II | 11,387 (56.9) | 2,138 (46.6) | 13,525 (55.0) | 0.001 |
| III and IV | 8,631 (43.1) | 2,454 (53.4) | 11,085 (45.0) | |
| North | ||||
| I and II | 1,310 (55.4) | 254 (38.9) | 1,564 (51.9) | 0.001 |
| III and IV | 1,053 (44.6) | 399 (61.1) | 1,452 (48.1) | |
| Southeast | ||||
| I and II | 22,426 (60.2) | 3,940 (49.0) | 26,366 (58.2) | 0.001 |
| III and IV | 14,847 (39.8) | 4,103 (51.0) | 18,950 (41.8) | |
| South | ||||
| I and II | 11,066 (61.6) | 2,188 (55.4) | 13,254 (60.5) | 0.001 |
| III and IV | 6,901 (38.4) | 1,759 (44.6) | 8,660 (39.5) | |
Data are expressed as absolute frequency (relative frequency). * McNemar’s test.
Bold was used to demonstrate the statistical significance of the p value.