Table 1.
Baseline sociodemographic and clinical characteristics of the analytic cohort
| Characteristic | White n (%)(n=2,244) | Black or African- American n (%)(n=158) | Hispanic or Latina n (%)(n=148) | Other* n (%)(n=153) | P-Value† |
|---|---|---|---|---|---|
| Age, mean (SD) | 49.9 (10.2) | 49.7 (10.5) | 45.5 (8.9) | 47.6 (9.2) | <.001 |
| BMI, mean (SD) | 26.5 (5.6) | 30.6 (6.5) | 27 (5.5) | 25.7 (4.8) | <.001 |
| Education | .003 | ||||
| No college | 585 (26.2) | 57 (36.3) | 50 (33.8) | 32 (21.2) | |
| College | 1,651 (73.8) | 100 (63.7) | 98 (66.2) | 119 (78.8) | |
| Household annual income | <.001 | ||||
| <$50,000 | 340 (15.7) | 65 (41.4) | 35 (24.7) | 28 (19.1) | |
| $50,000–$99,999 | 699 (32.2) | 51 (32.5) | 62 (43.6) | 49 (33.3) | |
| >$100,000 | 1,133 (52.1) | 41 (26.1) | 45 (31.7) | 70 (47.6) | |
| Smoking | .003 | ||||
| Non-smoker | 1,403 (63.1) | 113 (71.5) | 113 (76.9) | 107 (71.8) | |
| Previous smoker | 761 (34.3) | 42 (26.6) | 31 (21.1) | 37 (24.8) | |
| Current smoker | 58 (2.6) | 3 (1.9) | 3 (2.0) | 5 (3.4) | |
| Procedure type | .199 | ||||
| Implant-based | 1,522 (67.8) | 113 (71.5) | 108 (73.0) | 90 (58.8) | |
| Autologous | 659 (29.4) | 41 (26.0) | 36 (24.3) | 57 (37.3) | |
| Latissimus Dorsi | 63 (2.8) | 4 (2.5) | 4 (2.7) | 6 (3.9) | |
| Laterality | <.001 | ||||
| Unilateral | 949 (42.3) | 93 (58.9) | 71 (48.0) | 82 (53.6) | |
| Bilateral | 1,295 (57.7) | 65 (41.1) | 77 (52.0) | 71 (46.4) | |
| Timing | |||||
| Immediate | 2056 (91.6%) | 143 (90.5%) | 131 (88.5%) | 142 (92.8%) | 0.162 |
| Delayed | 146 (6.5%) | 12 (7.6%) | 15 (10.1%) | 5 (3.3%) | |
| Mixed | 42 (1.9%) | 3 (1.9%) | 2 (1.4%) | 6 (3.9%) | |
| Indication for mastectomy | .047 | ||||
| Therapeutic | 1,983 (88.4) | 147 (93) | 136 (91.8) | 143 (93.4) | |
| Prophylactic | 261 (11.6) | 11 (7.0) | 12 (8.1) | 10 (6.5) | |
| Diabetes Mellitus | 73 (3.3) | 14 (8.9) | 6 (4.1) | 20 (13.1) | <.001 |
| Radiation | .909 | ||||
| Before reconstruction | 296 (13.2) | 24 (15.2) | 21 (14.2) | 16 (10.5) | |
| After reconstruction | 421 (18.8) | 26 (16.5) | 27 (18.2) | 28 (18.3) | |
| None | 1,527 (68.0) | 108 (68.3) | 100 (67.6) | 109 (71.2) |
Standard deviation, SD; Body mass index, BMI;
Cases with missing information are excluded. Given in absolute numbers (n) and as percentage of patients in that characteristic group.
*
Other category includes Asian, Native American/Alaska Native, Native Hawaiian, or other Pacific Islander
†
X2 for categorical variables, t test for continuous variables