TABLE 3.
Type of NIWC* |
Mastectomy-Only (n = 7,860), n (%) |
Mastectomy Plus Implant (n = 8,217), n (%) |
Mastectomy Plus Flap ± Implant (n = 2,619), n (%) |
Days to Diagnosis, Median (IQR) |
|||
---|---|---|---|---|---|---|---|
All | Requiring Surgical Wound Care |
All | Requiring Surgical Wound Care |
All | Requiring Surgical Wound Care |
||
Dehiscence | 166 (2.1) | 76 (1.0) | 420 (5.1) | 241 (2.9) | 188 (7.2) | 106 (4.0) | 32 (19–57) |
Necrosis | 96 (1.2) | 45 (0.6) | 200 (2.4) | 118 (1.4) | 122 (4.7) | 77 (2.9) | 33 (18–58) |
Hematoma | 209 (2.7) | 139 (1.8) | 211 (2.6) | 156 (1.9) | 98 (3.7) | 61 (2.3) | 7 (2–20) |
Fat necrosis | 42 (0.5) | 12 (0.2) | 154 (1.9) | 75 (0.9) | 138 (5.3) | 42 (1.6) | 35 (18–104) |
All comparisons of overall NIWC proportions for mastectomy plus implant and mastectomy plus flap immediate reconstruction compared to mastectomy-only p < 0.001 by Chi-square test, except for hematoma (mastectomy plus implant p = 0.72 and mastectomy plus flap ± implant (p = 0.004) compared to mastectomy-only). Comparing the overall NIWC proportions after mastectomy plus implant vs. mastectomy plus flap (± implant), all p < 0.001 except for hematoma (p = 0.002). Adjusting the alpha for a total of 12 tests, p < 0.004 considered statistically significant.
IQR, interquartile range.