表 3.

Comparison of acetabular orientation between male and female subgroups in asymptomatic group and DDH group ( , °)

无症状组和DDH组男、女性别亚组间髋臼朝向比较（ ，°）

指标 Item	无症状组 Asymptomatic group				DDH组 DDH group
	男性（n=92） Male (n=92)	女性（n=76） Female (n=76)	统计值 Statistic		男性（n=21） Male (n=21)	女性（n=49） Female (n=49)	统计值 Statistic
OA	23.20±6.72	27.87±8.25	t=−2.858 P=0.005		19.97±11.23	28.12±15.47	t=−2.204 P=0.031
OI	48.58±3.40	47.99±2.63	t=0.877 P=0.383		55.19±6.78	56.65±11.29	t=−0.558 P=0.579
RA	15.04±4.46	18.12±5.27	t=−2.895 P=0.005		11.12±6.32	15.48±9.49	t=−1.953 P=0.055
RI	51.19±3.50	51.82±3.16	t=−0.850 P=0.398		57.32±6.85	61.01±10.48	t=−1.749 P=0.086
AA	19.02±5.50	22.50±6.18	t=−2.733 P=0.008		13.28±7.57	18.07±10.80	t=−1.869 P=0.066
AI	52.89±3.47	54.17±3.50	t=−1.669 P=0.099		58.31±6.64	62.77±9.87	t=−2.197 P=0.032