Table 1.
Participant characteristics at baseline
| Characteristic | All Hips (n = 548) |
femoral shortening (n = 119) |
No femoral shortening (n = 429) | Odds ratio | 95% CI | P Value |
|---|---|---|---|---|---|---|
| Median age (IQR), months | 23 (19–32) | 39 (31–52.5) | 21 (19–26) | 1.11 | 1.09–1.14 | < 0.001 |
| Female sex, % | 461 (84) | 91 (76) | 370 (86) | 1.93 | 1.16–3.20 | 0.015 |
| Left side, % | 295 (54) | 67 (56) | 228 (53) | 1.14 | 0.75–1.71 | 0.612 |
| Mean BMI (range) | 15.61 (8.41–25.97) | 14.89 (10.65–25.97) | 15.81 (8.41–24.85) | 0.87 | 0.80–0.94 | < 0.001 |
| IHDI 4, % | 461 (84) | 118 (99) | 343 (80) | 29.59 | 4.08–214.80 | < 0.001 |
IQR interquartile range, BMI body mass index, IHDI international hip dysplasia institute