Table 1.

Demographic, clinical, and radiographic data on patients with varus femoral osteotomy and in the control group

Variable	Femoral osteotomy group	Control group
Sex (girls/boys)	19/51	12/39
Pain (+/−)	63/6	47/3
Limping gait (+/−)	64/3	47/3
Age (years)*	7.4 (7.1–7.6)	7.6 (7.3–8.0)
Age group (>/< 8 years)	52/18	31/20
Symptom duration (months)*	4.7 (3.7–5.9)	6.4 (4.5–8.3)
Affected side (left/right)	33/37	28/23
Catterall group (3/4)	48/22	27/24
Lateral pillar group (B/C)	36/34	30/21
FHC at diagnosis (%)*	84.8 (81.9–87.6)	87.2 (83.3–90.3)

* Values are expressed as mean, with 95% CI in parentheses; the remaining values are expressed as number of patients; FHC = femoral head coverage.