Table 2.
Demographic characteristics of the TKA group stratified by Black or White race
| Variable | Black (n = 469) | White (n = 3134) | p value |
| Age in years | 64 (57-71) | 67 (61-73) | < 0.001 |
| Women | 72 (336) | 59 (1843) | < 0.001 |
| BMI in kg/m2 | 34 (30-39) | 32 (28-37) | < 0.001 |
| Smoking | |||
| Never | 54 (253) | 54 (1705) | < 0.001 |
| Quit | 33 (156) | 39 (1224) | |
| Current | 13 (60) | 7 (205) | |
| CCI | 1 (0-2) | 0 (0-2) | < 0.001 |
| ADI | 80 (58-92) | 42 (26-61) | < 0.001 |
Data presented as median and IQR (25th-75th) or % (n). Race was provider-recorded and captured by an institutional data collection system. CCI = Charlson Comorbidity Index scores represent quan-10 age-unadjusted comorbidity burden with increasing values implying higher comorbidity burden; ADI = Area Deprivation Index quantifies a patient’s relative socioeconomic disadvantage based on his or her home address, with increasing values implying more severe socioeconomic disadvantage.