Table 1 Clinical characteristics of study population.
Clinical features | Experimental group (n = 30) | Control group (n = 30) | t/χ2 | P-value |
|---|---|---|---|---|
Age (years, x ± s) | 55.3 ± 5.7 | 57.5 ± 5.5 | ||
PS score (%) | ||||
0 | 21(70) | 21(70) | 0.300 | 0.584 |
1 | 9(30) | 11(37) | ||
Postmenopausal (%) | 23(77) | 22(73) | 0.089 | 0.766 |
Premenopausal (%) | 7(23) | 8(27) | ||
ER+, PR+ | 12(40) | 15(50) | 0.622 | 0.733 |
ER+, PR− | 8(27) | 7(23) | ||
ER−, PR+ | 10(33) | 8(27) | ||
Primary lesion > 5 cm | 18(60) | 19(63) | 0.079 | 0.791 |
Primary lesion ≤ 5 cm, lymph node involvement (%) | 12(40) | 11(37) | ||
Comorbidities (%) | ||||
Yes | 8(27) | 7(23) | 0.089 | 0.766 |
No | 22(73) | 23(77) | ||
