Table IV.

Patient demographics of 49 hips with cortical hypertrophy.

Characteristic	Stable/progressed (n = 36)	Improved (n = 13)	p-value
Sex, F:M	29:7	11:2	0.746*
Side, R:L	15:21	12:1	0.002*
Mean age at operation, yrs (range)	66.3 (30 to 81)	57.8 (34 to 68)	0.012†
Mean height, cm (range)	157.6 (142 to 178)	159.1 (152 to 182)	0.595†
Mean weight, kg (range)	59.7 (39 to 82)	60.5 (43 to 84)	0.844†
Mean BMI, kg/m2 (range)	23.9 (17.8 to 33.7)	23.8 (18.1 to 32.0)	0.888†
Mean operating time, mins (range)	121.7 (77 to 203)	100.8 (81 to 125)	0.003†
Mean blood loss, cc (range)	371.4 (15 to 1,495)	340.0 (50 to 1,015)	0.722†
Approach, n
ALS	36	13	N/A
Dorr type, A:B:C	1:33:2	0:12:1	0.805*

^*Chi-squared test.

^†Independent-samples t-test.

ALS, anterolateral supine; N/A, not applicable.