Table 4 Post-surgical hormonal therapy in patients with invasive lesions according to estrogen receptor (ER) status, 2002 and 2004, Piedmont Region, Italy
Estrogen receptor-positive | Estrogen receptor-negative | p value | |
|---|---|---|---|
N and % | N and % | ||
2002 | 319/338 | 23/117 | < 0.01 |
(88.0%) | (19.6%) | ||
2004 | 332/354 | 10/92 | |
(89.8%) | (10.8%) |