Table 3.
Regularized coefficients from the logistic regression with elastic net penalty.
| Regularized coefficient for lower satisfaction at 2-year follow-up (positive values indicate a positive correlation with low satisfaction) | Regularized coefficient for higher satisfaction at 2-year follow-up (positive values indicate a positive correlation with high satisfaction) | |
|---|---|---|
| Patient variables | ||
| Age | 0.01 | 0.0 |
| BMI | 0.05 | 0.0 |
| Diabetes | 0.0 | 0.0 |
| Smoker | ||
| Never | −0.13 | 0.14 |
| Previous | 0.0 | 0.0 |
| Current | 0.42 | −0.37 |
| Patient-reported outcomes at baseline | ||
| Satisfaction with breasts | 1.44 | −1.26 |
| Psychosocial well-being | 0.0 | 0.0 |
| Physical well-being chest and upper body | −0.04 | 0.0 |
| Physical well-being abdomen | 0.01 | 0.0 |
| Sexual well-being | 0.0 | 0.0 |
| Clinical variables | ||
| Radiation | ||
| After reconstruction | 0.52 | −0.42 |
| Before reconstruction | −0.22 | 0.02 |
| None | 0.0 | 0.0 |
| Mastectomy | ||
| Nipple-sparing | 0.0 | −0.01 |
| Simple | 0.0 | 0.0 |
| Other | 0.11 | 0.0 |
| Reconstruction – Implant-based | ||
| Tissue expander | 0.40 | −0.28 |
| Direct-to-implant | 0.0 | 0.0 |
| Reconstruction – Autologous (flap) | ||
| TRAM | −0.76 | 0.16 |
| DIEP | −0.22 | 0.23 |
| LD | 0.0 | 0.0 |
| GAP | 0.0 | 0.0 |
| SIEA | −1.00 | 0.0 |
| Crossover | 0.0 | 0.0 |
| Mixed flaps | 0.28 | 0.0 |
| Reconstruction – Mixed implants and autologous | −0.11 | 0.01 |
| Chemotherapy | ||
| Received | −0.12 | −0.03 |
| Not received | 0.12 | 0.03 |
| Laterality | ||
| Unilateral reconstruction | 0.16 | −0.05 |
| Bilateral reconstruction | −0.16 | 0.05 |
| Mastectomy indication | ||
| Therapeutic | 0.19 | 0.0 |
| Prophylactic | −0.19 | 0.0 |
| Axillary intervention | ||
| Axillary lymph node dissection | 0.0 | −0.13 |
| Sentinel lymph node biopsy | 0.01 | 0.0 |
| No axillary intervention | 0.0 | 0.21 |