Table 5.
Multivariate Linear Regression Model Predicting Surgeon Operative Time
| Breast Surgery Operative Time | Plastic Surgery Operative Time | ||||||
|---|---|---|---|---|---|---|---|
| Estimate | 95% CI | P | Estimate | 95% CI | P | ||
| (Intercept) | 230.4 | (75.2, 385.6) | 0.004 | (Intercept) | 384.0 | (−43.0, 811.1) | 0.077 |
| Overall stage | Overall stage | ||||||
| Stage I | REF | REF | REF | Stage I | REF | REF | REF |
| Stage 0 | 26.0 | (−29.2, 81.1) | 0.351 | Stage 0 | 72.2 | (−96.7, 241.0) | 0.397 |
| Stage II | 7.8 | (−37.5, 53.0) | 0.733 | Stage II | −44.7 | (−172.9, 83.5) | 0.489 |
| Stage III | 3.0 | (−55.7, 61.6) | 0.920 | Stage III | −22.0 | (−204.8, 160.8) | 0.811 |
| Mastectomy type | Reconstruction subtype | ||||||
| Simple | REF | REF | REF | TE−to−Implant | −115.6 | (−272.6, 41.4) | 0.146 |
| Nipple sparing | −37.2 | (−84.8, 10.4) | 0.123 | TE−to−Free Flap | 323.4 | (149.5, 497.3) | <0.001 |
| Skin sparing | −36.1 | (−77.0, 4.7) | 0.082 | Free Flap | 303.0 | (144.6, 461.4) | <0.001 |
| Modified radical | 128.9 | (26.5, 231.3) | 0.014 | Pedicled Flap | 241.6 | (−99.6, 582.7) | 0.162 |
| Major complication of mastectomy | 16.6 | (−58.9, 92.1) | 0.662 | Major complication | 198.5 | (82.6, 314.4) | 0.001 |
| Minor complication of mastectomy | 53.4 | (−8.1, 114.8) | 0.088 | Minor complication | 113.4 | (−16.8, 243.6) | 0.087 |
| Tobacco past | −6.1 | (−48.8, 36.6) | 0.776 | Tobacco past | −20.9 | (−141.6, 99.8) | 0.731 |
| Tobacco current | 27.9 | (−62.3, 118.1) | 0.539 | Tobacco current | −97.1 | (−452.4, 258.2) | 0.587 |
| BMI | −0.3 | (−4.1, 3.4) | 0.858 | BMI | 7.4 | (−3.7, 18.5) | 0.189 |
| Neoadjuvant chemotherapy | −44.0 | (−90.7, 2.6) | 0.064 | Neoadjuvant chemotherapy | 33.0 | (−105.6, 171.6) | 0.636 |
| Axillary lymph node dissection | 10.8 | (−23.2, 44.8) | 0.528 | Adjuvant chemotherapy | −40.8 | (−154.1, 72.5) | 0.474 |
| Cancer bilateral | 21.0 | (−40.0, 82.1) | 0.494 | Adjuvant radiation | −40.1 | (−167.3, 87.0) | 0.531 |
| Age | −1.2 | (−3.0, 0.7) | 0.208 | Age | −3.6 | (−8.6, 1.4) | 0.158 |
| Germline genetic mutation | −15.9 | (−91.5, 59.8) | 0.677 | Germline genetic mutation | −84.3 | (−302.1, 133.6) | 0.443 |
| ER+ | −2.8 | (−81.7, 76.1) | 0.944 | ER+ | −6.3 | (−229.2, 216.6) | 0.955 |
| PR+ | −15.0 | (−79.4, 49.4) | 0.643 | PR+ | −51.4 | (−230.8, 127.9) | 0.569 |
| HER2+ | −7.6 | (−58.9, 43.7) | 0.768 | HER2+ | 30.0 | (−118.1, 178.1) | 0.687 |
| Triple negative | −27.6 | (−112.3, 57.2) | 0.519 | Triple negative | 51.0 | (−184.3, 286.4) | 0.667 |
| Mastectomy bilateral | 39.5 | (1.8, 77.1) | 0.040 | Breast reconstruction bilateral | 7.8 | (−95.2, 110.8) | 0.880 |