Table 1.
TJA patient demographic data.
| Total Hip Arthroplasty Cohort (Total n = 1770) | |||
|---|---|---|---|
| Variables | Injection (n = 150) | Control (n = 1620) | p-valuea |
| Age | 63.8 ± 11.5 | 63.9 ± 11.4 | 0.96 |
| BMI | 29.5 ± 5.4 | 29.1 ± 5.9 | 0.33 |
| ASA score | 0.1 | ||
| I | 9 (6%) | 137 (8%) | |
| II | 88 (59%) | 987 (61%) | |
| III | 50 (33%) | 480 (30%) | |
| IV | 3 (2%) | 16 (1%) | |
| CCI | |||
| Unadjusted | 0.82 ± 1.6 | 0.43 ± 1.1 | 0.005 |
| Age-adjusted | 0.94 ± 2.0 | 0.56 ± 1.6 | 0.036 |
| Gender | 0.07 | ||
| Male | 53 (35%) | 698 (43%) | |
| Female | 97 (65%) | 921 (57%) | |
| Race | 0.23 | ||
| White | 118 (78%) | 1215 (75%) | |
| African American | 19 (13%) | 186 (12%) | |
| Other (including Asian) | 13 (9%) | 216 (13%) | |
| Smoking Status | 0.67 | ||
| Current | 11 (8%) | 123 (7%) | |
| Former | 62 (41%) | 604 (37%) | |
| Never | 77 (51%) | 886 (55%) | |
| Unknown |
0 (0%) |
7 (1%) |
|
| Total Knee Arthroplasty Cohort (Total n = 1570) | |||
| Variables |
Injection (n = 192) |
Control (n = 1378) |
p-valuea |
| Age | 67.04 ± 8.6 | 66.9 ± 9.7 | 0.82 |
| BMI | 32.3 ± 5.9 | 32.3 ± 6.3 | 0.99 |
| ASA score | 0.29 | ||
| I | 6 (3%) | 32 (2%) | |
| II | 111 (58%) | 729 (53%) | |
| III | 74 (38%) | 591 (43%) | |
| IV | 1 (1%) | 26 (2%) | |
| CCI | 0.12 0.83 |
||
| Unadjusted | 0.7 ± 1.3 | 0.54 ± 1.2 | |
| Age-adjusted | 0.67 ± 1.7 | 0.7 ± 1.7 | |
| Gender | 0.39 | ||
| Male | 56 (29%) | 444 (32%) | |
| Female | 136 (71%) | 934 (68%) | |
| Race | 0.14 | ||
| White | 112 (58%) | 736 (53%) | |
| African American | 40 (21%) | 262 (19%) | |
| Other (including Asian) | 40 (21%) | 380 (28%) | |
| Smoking Status | 0.001 | ||
| Current | 4 (2%) | 91 (6%) | |
| Former | 90 (47%) | 469 (34%) | |
| Never | 98 (51%) | 813 (59%) | |
| Unknown | 0 (0%) | 5 (1%) | |
a
p-values derived from unpaired t-tests for continuous variables or chi-squared tests for categorical data.