Table 2. The site of breast cancer in different quadrants in two cohorts 1957–59 and 1997–99 (χ2 = 100.288, p= 0.0001).
| Site | 1957–1959 | 1997–1999 |
|---|---|---|
| UOQ | 469 (40.5%) | 788 (53.4%) |
| LOQ | 86 (7.4%) | 147 (10%) |
| UIQ | 221 (19.1%) | 175 (11.8%) |
| LIQ | 62 (5.4%) | 91 (6.2%) |
| Central | 145 (12.5%) | 69 (4.7%) |
| Q6 | 175 (15.1%) | 207 (14.0%) |
| TOTAL | 1158 | 1477 |