Application Value of Combined Diagnosis of Ultrasound, MRI, and X-Ray in Developmental Dysplasia of the Hip in Children

Table 3

Area under the curves.

Test result variables	Area	Standard error^a	Progressive Sig^b	Progressive 95% confidence interval
MRI + ultrasound + X-ray	0.919	0.069	0.000	0.000–1.000
Ultrasound + X-ray	0.845	0.095	0.001	0.599–1.000
MRI	0.770	0.106	0.012	0.563–0.977
Ultrasound	0.758	0.105	0.017	0.551–0.964
X-ray	0.659	0.111	0.140	0.441–0.876

a, under nonparametric hypothesis; b, null hypothesis, actual area = 0.5.