Table 2.
Demographics
| Demographic | All cases | As randomized (intent-to-treat) | |||
|---|---|---|---|---|---|
| Outpatient | Inpatient | Mean difference with 95% confidence interval | p value | ||
| Number of THAs (%) | 220 | 112 | 108 | N/A | N/A |
| Age at surgery (years) | 60.0 ± 8.7 [59.8] (27–74) | 59.8 ± 8.5 [59.3] (27–74) | 60.2 ± 8.9 [61.0] (34–74) | −0.4 (−2.7 to 2.0) | 0.76 |
| Sex | 103 females (47%) | 53 females (47%) | 50 females (46%) | N/A | 0.89 |
| BMI | 27.9 ± 4.4 [27.6] (18.0–39.9) | 27.6 ± 4.1 [27.1] (18.0–38.4) | 28.3 ± 4.7 [27.7] (18.4–39.9) | −0.8 (−1.9 to 0.4) | 0.19 |
| Preoperative diagnosis | |||||
| Osteoarthritis | 206 (94%) | 104 (93%) | 102 (94%) | N/A | 0.73 |
| Avascular necrosis | 10 (5%) | 5 (4%) | 5 (5%) | ||
| Dysplasia | 3 (1%) | 2 (2%) | 1 (1%) | ||
| Perthes | 1 (0.5%) | 1 (1%) | 0 | ||
| Preoperative comorbidities present | 39 (18%) | 19 (17%) | 20 (19%) | N/A | 0.86 |
Continuous data are specified as mean ± SD [median] (range); BMI = body mass index; N/A = not applicable.