Table 3.

Multivariate analysis of the factors for dislocation

Factors	Odds ratio	95 % percentile	P value
Age	1.03	0.938–1.009	0.1470
BMI	1.05	0.857–1.075	0.4349
Gender	1.12	0.392–2.954	0.8227
Indication of THA
OA / RA	4.96	0.700–22.28	<0.001*
OA / ONFH	14.8	4.961–44.43
OA / revision	9.67	2.601–32.59
Neck geometry	3.64	1.416–9.578	0.0076*
Cup abduction	1.07	0.867–0.996	0.0379*
Cup anteversion	1.06	0.886–1.008	0.0866

BMI body mass index, OA osteoarthritis, RA rheumatoid arthritis, ONFH idiopathic osteonecrosis of femoral head

Qualitative data were compared with χ² test and quantitative data with the Pearson test

* Statically significant p-value <0.05