Table 1.
Characteristics of patients (N = 1140).
| Variables | N (%) | Mean ± SD |
|---|---|---|
| Demographic characteristics | ||
| Age, years | 52.30 ± 10.98 | |
| Education, years | 10.20 ± 3.77 | |
| Current residence with family member(s) | 1095 (96.1%) | |
| Married | 1002 (87.9%) | |
| Body mass index, kg/m2 | 24.55 ± 4.71 | |
| Charlson Comorbidity Index, score | 1.05 ± 1.38 | |
| Tumor size | 2.42 ± 1.80 | |
| Tumor stage | ||
| I | 369 (32.4%) | |
| II | 456 (40.0%) | |
| III | 315 (27.6%) | |
| Smoker | 57 (5%) | |
| Drinker | 30 (2.6%) | |
| Breast cancer history | 153 (13.4%) | |
| Clinical characteristics | ||
| Surgery | ||
| BCS | 117 (10.3%) | |
| MRM | 306 (26.8%) | |
| Mastectomy with reconstruction | 717 (62.9%) | |
| ASA score | 2.04 ± 0.39 | |
| Chemotherapy | 816 (71.6%) | |
| Radiotherapy | 663 (58.2%) | |
| Hormonal therapy | 681 (59.7%) | |
| Surgeon volume | ||
| Low (≤8 cases/ year) | 376 (33%) | |
| Medium (9 ~ 16 cases/ year) | 381 (33.4%) | |
| High (≥17 cases/ year) | 383 (33.6%) | |
| Hospital volume | ||
| Low (≤19 cases/ year) | 374 (32.8%) | |
| Medium (20~29 cases/ year) | 381 (33.4%) | |
| High (≥30 cases/ year) | 385 (33.8%) | |
| Quality of care within 10 years | ||
| Readmission in 30 days | 285 (25%) | |
| Recurrence | 225 (19.7%) | |
| Survival | 840 (73.7%) | |
| Preoperative quality of life | ||
| Preoperative SF36 PCS score | 56.02 ± 7.44 | |
| Preoperative SF36 MCS score | 41.12 ± 18.39 |
BCS: breast conserving surgery; MRM: modified radical mastectomy; ASA: American Society of Anesthesiologists; PCS: physical component summary; MCS: mental component summary.