Table 1. Clinical data of cases and controls.
Clinical data | Cases | Controls |
Age (Mean±SD) a | 48.9±10.4 | 45.2±8.9 |
rade (%) | ||
I,II | 59(79.7) | _ |
III | 15(20.3) | |
ER (%) | ||
Negative | 28(26.9) | _ |
Positive | 76(73.1) | |
PR (%) | ||
Negative | 37(35.9) | _ |
Positive | 66(64.1) |
The Student's t test showed no significant difference between the two groups (p>0.05).