What are the significant factors affecting pain in patients with Hartofilakidis type Ι developmental dysplasia of the hip?

Table 4 Results of single factor COX regression analysis

Variables	β	wald	Exp (β)	95%CI	p
Sex	− 0.064	0.014	0.938	0.323–2.727	0.907
BMI	0.059	1.390	1.061	0.962–1.171	0.238
Side	0.289	0.458	1.334	0.579–3.077	0.498
Sphericity index	0.057	3.608	1.059	0.998–1.124	0.058
AAA	0.012	0.471	1.012	0.979–1.046	0.492
LCEA	− 0.041	4.031	0.960	0.922–0.999	0.045*
Sharp angle	0.104	4.410	1.110	1.007–1.224	0.036*
EI	0.015	0.741	1.015	0.981–1.052	0.389
Shenton line	0.243	0.361	1.275	0.578–2.814	0.548
Tonnis grade	0.315	0.498	1.371	0.571–3.291	0.480
Joint congruency	− 0.172	0.379	0.842	0.486–1.457	0.538
Tonnis angle	0.046	3.456	1.047	0.998–1.099	0.063
d	0.816	18.029	2.262	1.552–3.298	< 0.001*

BMI = body mass index; AAA = acetabular anteversion angle; LCEA = lateral central edge angle; EI = femoral head extrusion index; d = distance between medial femoral head and ilioischial line
*p < 0.05

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