Table 1.
Patient demographics
| Parameters | Simultaneous group | Staged group | P‐value |
|---|---|---|---|
| Number of patients (hips) | 863 (1726) | 282 (564) | |
| Age (years)* | 49 (41–56) | 52.5 (44.75–60) | <0.001 |
| Sex† | <0.001 | ||
| Male | 604 (70.0) | 152 (53.9) | |
| Female | 259 (30.0) | 130 (46.1) | |
| BMI (kg/m2)* | 24.69 (22.68–27.17) | 24.79 (22.34–27.34) | 0.646 |
| ASA classification† | 0.064 | ||
| 1 | 265 (30.7) | 76 (27.0) | |
| 2 | 589 (68.2) | 194 (68.8) | |
| 3 | 9 (1.0) | 12 (4.3) | |
| Diagnosis† | 0.006 | ||
| AVN | 580 (67.2) | 158 (56.0) | |
| OA | 219 (25.4) | 101 (35.8) | |
| AS | 53 (6.1) | 19 (6.7) | |
| RA | 11 (1.3) | 4 (1.4) |
*
Continuous variables which are not normally distributed and presented as medians with interquartile ranges in parentheses.
†
Categorical variables which are presented as frequency with percent in parentheses.
AS, ankylosing spondylitis; ASA, American Society of Anesthesiologists; AVN, avascular necrosis; BMI, body mass index; OA, osteoarthritis; RA, rheumatoid arthritis