Table 5.

Univariate analysis, with odds ratio for ‘pathological’ developmental dysplasia of the hip (DDH)

Variable	Normal	Pathological	Univariate OR (95% CI)^a	P-value
Age, weeks	-	-	1.002 (0.72 to 1.39)	0.992
Referred ‘Ortolani / Barlow positive’	1	4	326 (24 to 4377)	<0.001
Referred ‘unstable’	7	2	11.2 (1.7 to 72)	0.03
Referred ‘clicky’ hip	73	0	0	1.00
Limited hip abduction	38	1	0.66 (0.08 to 5.85)	1.00
Family history of DDH	8	0	1	1.00
Breech	10^b	0	1	1.00
Other risk factor	20	1^c	1.44 (0.16 to 12.96)	0.55
Leg length inequality	6	0	1	1.00
Caesarean delivery	4	0	1	1.00
Abnormal skin crease	11	0	0	1.00

↵a Confidence intervals are not shown for all variables.
↵b Eight also had another risk factor other than family history and one also referred with clicky hip.
↵c Congenital talipes calcaneovalgus. CI = confidence interval. DDH = developmental dysplasia of the hip. OR = odds ratio.