Table 1.
Diagnostic categories and patient characteristics for 250 hips
| Diagnosis | Number of hipsa | Age of patientsb (year) | ||||
|---|---|---|---|---|---|---|
| Female (n = 214) | Male (n = 36) | Overall (N = 250) | Female (n = 214) | Male (n = 36) | Overall (N = 250) | |
| DDH | 140 (56.0%) | 15 (6.0%) | 155 (62.0%) | 62.9 ± 10.1 | 65.7 ± 8.3 | 63.4 ± 9.6 |
| Unknown | 71 (28.4%) | 17 (6.8%) | 88 (35.2%) | 71.3 ± 8.9‡ | 73.1 ± 8.6c | 71.6 ± 9.1c |
| Other | 3 (1.2%) | 4 (1.6%) | 7 (2.8%) | 68.7 ± 8.1 | 65.3 ± 8.2 | 66.7 ± 7.7 |
aThe values are expressed as the number and percent of patients
bThe values are expressed as years of age and the standard deviation
cA significant difference (p < 0.001) was shown between DDH and unknown etiology within the same gender group
DDH developmental dysplasia of the hip, unknown unknown etiology