Table 3.

The analytic results and survival rate of hips conversion to THA

Index	Survival rate (3 years)	P value	Survival rate (5 years)	P value
Overall sample	0.806 (0.685, 0.949)		0.739 (0.584, 0.936)
Gender		0.017		0.054
Male	0.955 (0.871, 1.000)		0.818 (0.597, 1.000)
Female	0.623 (0.422, 0.920)		0.623 (0.422, 0.920)
Age		0.001		0.002
≥ 55	0.444 (0.214, 0.923)		0.444 (0.214, 0.923)
< 55	0.933 (0.848, 1.000)		0.840 (0.669, 1.000)
BMI		0.268		0.162
≥ 25	0.727 (0.531, 0.996)		0.606 (0.376, 0.976)
< 25	0.840 (0.682, 1.000)		0.840 (0.682, 1.000)
Labral tear		0.353		0.332
Y	0.756 (0.590, 0.968)		0.687 (0.504, 0.937)
N	0.881 (0.739, 1.000)		0.881 (0.739, 1.000)
Cartilage injury		0.082		0.023
Gr 0~II	0.851 (0.723, 1.000)		0.851 (0.723, 1.000)
Gr III~IV	0.625 (0.365, 1.000)		0.417 (0.159, 1.000)
Tönnis stage		0.005		0.001
Stage 0~I	0.958 (0.882, 1.000)		0.958 (0.882, 1.000)
Stage II	0.556 (0.351, 0.911)		0.283 (0.065, 1.000)