Table 2.
Regression Coefficients Of Each Domain And Item Scores Of The WHOQOL-BREF Based On Multiple Linear Regression Models; Those With No Statistical Significance (P> 0.05) Were Not Listed
| Item | No Lymph Node Dissection vs Axillary Lymph Node Dissection | Breast-Conserving Surgery & No Lymph Node Dissection vs Total Mastectomy & Axillary Lymph Node Dissection | Chemotherapy ≤6 mo vs Chemotherapy (−) | Chemotherapy > 6 mo vs Chemotherapy (−) | Chemotherapy > 6 mo & Radiotherapy Within 2 Years vs Chemotherapy (−) & Radiotherapy (−) | Body Image | Dependence In Activity Of Daily Living |
|---|---|---|---|---|---|---|---|
| -Physical Domain | −0.76(0.32) | −0.61(0.28) | 1.32(0.52) | −0.16(0.02) | −1.31(0.33) | ||
| Medication | −0.30(0.14) | 0.57(0.25) | −0.02(0.01) | ||||
| Sleep and rest | −0.56(0.16) | −0.32(0.14) | 0.75(0.25) | −0.06(0.01) | |||
| Psychological Domain | -1.19(0.38) | ||||||
| Positive feelings | −0.90(0.30) | −0.05(0.01) | −0.48(0.16) | ||||
| Body image | −0.32(0.13) | −0.09(0.01) | |||||
| Negative feeling | −0.06(0.01) | ||||||
| Social Domain | |||||||
| Sexual activity | 0.52(0.23) | −0.04(0.01) | |||||
| Social support | −0.03(0) | ||||||
| Environment Domain | −0.76(0.27) | −0.11(0.02) | −0.80(0.32) | ||||
| Safety and security | 0.85(0.38) | −0.06(0.01) | |||||
| Financial resources | −0.37(0.13) | −0.04(0.01) | |||||
| Leisure activities | −1.03(0.48) | −0.02(0.01) | −0.72(0.17) | ||||
| Health services | −0.18(0.09) | −0.22(0.08) | −0.02(0.00) | −0.26(0.1) | |||
| Overall QoL | −0.49(0.23) | −0.04(0.01) | −0.31(0.12) |
Notes: All models have controlled following confounders: age, age groups (>55/<55 years old), hormone therapy (yes/no), marital status (yes/no), 3 education levels, and family income (>/<USD $1650/month), co-morbidities, pathological stage, types of lymph node dissection (sentinel lymph node biopsy/(-)), and axillary lymph node dissection/(-)), time after first chemotherapy (>18/<18 months), time after first radiotherapy (>13/<13 months), time after surgery (<1/1–5/>5 years), and interactions of types of surgery and lymph node dissection.
Abbreviations: Chemotherapy (-), never chemotherapy; Chemotherapy ≤6 mo, within 6 months after the first chemotherapy; Chemotherapy >6 mo, beyond 6 months after the first chemotherapy; QoL, quality of life; Radiotherapy (-), never radiotherapy; Dependence in Dependence of activity of daily living, the score of the Barthel Index < 100.