Characteristics | Total | Ovarian Ablation OA | GnRH agonist GnRHa | t or χ2 value | P Value |
---|---|---|---|---|---|
N | 563 | 174 | 389 | Â | Â |
Age, years | |||||
 Median | 44 | 46 | 43 |  |  |
 Range | 22-63 | 30-57 | 22-63 |  |  |
 Mean (SD) | 42.9 ± 7.7 | 45.2 ± 6.7 | 41.8 ± 7.8 | 5.374 | <0.001 |
Duration of OFS | |||||
 Mean (SD), months | 25.1 ± 25.4 | 30.3 ± 29.1 | 22.8 ± 22.1 | 3.009 | 0.003 |
Educational level | Â | Â | Â | 13.570 | 0.0002 |
 High school or below | 268 | 103 (59.2%) | 165 (42.4%) |  | |
 College or above | 295 | 71 (40.8%) | 224 (57.9%) |  | |
Annual income (RMB) | Â | Â | Â | 0.360 | 0.548 |
 ≤ 50,000 | 398 | 126 (72.4%) | 272 (69.9%) |  | |
 > 50,000 | 165 | 48 (27.6%) | 117 (30.1%) |  | |
Smoking habit | Â | Â | Â | 0.597 | 0.440 |
 Never or little | 548 | 168 (96.6%) | 380 (97.7%) |  | |
 Mostly | 15 | 6 (3.4%) | 9 (2.3%) |  | |
Alcohol drinking habit | Â | Â | Â | 1.210 | 0.271 |
 Never or little | 556 | 170 (97.7%) | 386 (99.2%) |  |  |
 Mostly | 7 | 4 (2.3%) | 3 (0.8%) |  |  |
Co-morbidity | Â | Â | Â | 0.060 | 0.807 |
 Diabetes/Hypertension | 43 | 14 (8.0%) | 29 (7.5%) |  |  |
 None | 520 | 160 (92.0%) | 360 (92.5%) |  |  |
Type of Surgery | Â | Â | Â | 5.852 | 0.016 |
 Mastectomy | 433 | 145 (83.3%) | 288 (74.0%) |  | |
 Breast-conserving | 130 | 29 (16.7%) | 101 (26.0%) |  | |
TNM staging | Â | Â | Â | 7.505 | 0.006 |
 I-III | 400 | 110 (63.2%) | 290 (74.6%) |  | |
 IV | 163 | 64 (36.8%) | 99 (25.4%) |  | |
Hormone Receptor Status | Â | Â | Â | 12.393 | 0.0004 |
 ER or PR Positive | 526 | 153 (87.9%) | 373 (95.9%) |  | |
 ER and PR Negative | 37 | 21 (12.1%) | 16 (4.1%) |  | |
HER2 Status | Â | Â | Â | 1.256 | 0.262 |
 Positive | 130 | 35 (20.1%) | 95 (24.4%) |  | |
 Negative | 433 | 139 (79.9%) | 294 (75.6%) |  | |
ET+OFS | |||||
 AI | 395 | 115 (66.1%) | 280 (72.0%) | 0.009 | 0.924 |
 TAM | 86 | 20 (11.5%) | 66 (17.0%) |  |  |
 Ful | 46 | 19(10.9%) | 27(6.9%) |  |  |
 None | 36 | 20 (11.5%) | 16 (4.1%) |  |  |