Table 1. Absolute and relative frequencies of gender, age, operated side and follow-up time in the Legg-Calvé-Perthes Disease (LCPD) group and in the control group of patients with primary osteoarthrosis of the hip.
| LCPD Group ( n = 25 hips) |
Control group ( n = 25 hips) |
p-value | |
|---|---|---|---|
| Gender, n (%) | |||
| Male | 17 (68) | 12 (48) | 0.152 |
| Female | 8 (32) | 13 (52) | |
| Age, years old | |||
| Mean (SD) | 47.3 (7,4) | 53.2 (4.4) | 0.001 |
| Median (IQR) | 46.0 (42.0–53.0) | 54.0 (50.0–56.0) | |
| Operated side, n (%) | |||
| Right | 12 (48) | 12 (48) | > 0.999 |
| Left | 13 (52) | 13 (52) | |
| Bilateral | 3 (12) | 3 (12) | |
| Follow-up time, months | |||
| Mean (SD) | 62.2 (18.9) | 65.3 (15.3) | 0.052 |
| Median (IQR) | 59.0 (52.0–67.0) | 62.0 (57.0–73.0) | |
Abbreviations: IQR, interquartile range; LCPD, Legg-Calvé-Perthes disease; SD, standard deviation.