Table III.

Intraclass correlation coefficient and 95% confidence intervals for the reader agreement analysis.

Variable	Reader 1 vs Reader 2 ICC (95% CI)		Reader 1 vs Reader 3 ICC (95% CI)		Reader 2 vs Reader 3 ICC (95% CI)
	Left hip	Right hip	Left hip	Right hip	Left hip	Right hip
LCEA	0.87 (0.81 to 0.91)	0.88 (0.74 to 0.94)	0.76 (0.67 to 0.82)	0.81 (0.68 to 0.88)	0.82 (0.69 to 0.89)	0.84 (0.78 to 0.88)
Tönnis angle	0.74 (0.30 to 0.88)*	0.86 (0.71 to 0.93)	0.80 (0.64 to 0.88)	0.84 (0.43 to 0.93)	0.84 (0.77 to 0.89)	0.89 (0.84 to 0.92)
Sharp’s angle	0.89 (0.81 to 0.93)	0.90 (0.86 to 0.93)	0.86 (0.76 to 0.91)	0.84 (0.78 to 0.89)	0.84 (0.78 to 0.89)	0.83 (0.76 to 0.88)
CCD angle	0.61 (0.00 to 0.87)*	0.63 (0.00 to 0.86)*	0.63 (0.28 to 0.80)*	0.54 (0.40 to 0.66)	0.69 (0.56 to 0.78)	0.59 (0.42 to 0.71)
Femoral head coverage	0.84 (0.78 to 0.89)	0.84 (0.77 to 0.89)	0.77 (0.59 to 0.86)	0.80 (0.52 to 0.90)	0.81 (0.71 to 0.87)	0.81 (0.71 to 0.87)
Pelvic obliquity	0.83 (0.66 to 0.90)		0.80 (0.61 to 0.89)		0.93 (0.91 to 0.95)

^*Wide confidence intervals were observed.

CCD, caput-collum-diaphyseal; CI, confidence interval; ICC, intraclass correlation coefficient; LCEA, lateral centre-edge angle.