Table 2.
Comparison of younger (< 50 years) and older (65–75 years) patients by sex
| Age/sex category | Body mass index (kg/m2) | Preoperative UCLA activity score | Preoperative SF-12 physical function score | Preoperative Harris hip score | Preoperative WOMAC physical function score |
|---|---|---|---|---|---|
| All younger patients | 29.1 ± 6.8 | 4.5 ± 2.4 | 31.4 ± 9.4 | 42.6 ± 14.4 | 44.8 ± 19.7 |
| All older patients | 29.0 ± 5.5 | 3.8 ± 2.0 | 30.6 ± 8.9 | 41.9 ± 14.6 | 44.4 ± 18.5 |
| All males | 29.5 ± 5.7 | 4.7 ± 2.5 | 31.9 ± 9.3 | 45.0 ± 14.5 | 46.5 ± 19.0 |
| All females | 28.7 ± 6.8 | 3.8 ± 1.9 | 30.4 ± 9.1 | 42.7 ± 14.3 | 43.1 ± 19.3 |
| Younger females | 28.4 ± 7.4 | 4.2 ± 2.1 | 30.4 ± 9.4 | 45.9 ± 14.5 | 43.5 ± 20.4 |
| Older females | 29.1 ± 6.1 | 3.8 ± 1.7 | 30.4 ± 8.7 | 39.7 ± 14.1 | 42.3 ± 18.0 |
| Younger males | 29.8 ± 6.2 | 4.7 ± 2.6 | 32.2 ± 9.3 | 50.2 ± 14.2 | 46.0 ± 19.0 |
| Older males | 28.8 ± 4.5 | 3.9 ± 2.3 | 30.9 ± 9.3 | 43.7 ± 15.1 | 47.6 ± 19.1 |
| p values | |||||
| All younger versus all older patients | 0.62 | <0.001 | 0.27 | 0.42 | 0.8 |
| All males versus all females | 0.03 | <0.001 | 0.02 | <0.001 | <0.01 |
| Younger versus older females | 0.21 | 0.01 | 0.98 | 0.27 | 0.46 |
| Younger versus older males | 0.03 | <0.001 | 0.22 | 0.52 | 0.43 |
| Younger females versus younger males | 0.51 | <0.001 | 0.19 | 0.01 | 0.12 |
| Older females versus older males | 0.86 | 0.90 | 0.72 | 0.28 | 0.86 |
Values are mean ± SD.