Mean physeal extension
Clockface position	Open physis (247 hips)		Closed physis (168 hips)		t-Test
	Mean	SD	Mean	SD	Difference	p Value
11 o’clock	0.716	0.037	0.770	0.052	+0.055	<0.001
12 o’clock	0.673	0.042	0.767	0.070	+0.095	<0.001
1 o’clock	0.682	0.052	0.799	0.075	+0.117	<0.001
2 o’clock	0.655	0.054	0.784	0.065	+0.130	<0.001
3 o’clock	0.577	0.051	0.690	0.063	+0.113	<0.001