Table 2

Comparison of temporal vessel angles (degrees) between ROP stage groups

ROP stage	n	tVA		n	tAA
ROP stage	n	Median (IQR)	Minimum value, maximum value	n	Median (IQR)	Minimum value, maximum value
No ROP	34	134.62 (117.70–148.63)	102.30, 161.60	29	107.41 (88.91–122.24)	60.31, 154.88
Stage 1 and 2	18	135.34 (114.07–146.20)	108.67, 162.21	16	100.82 (85.09–121.51)	49.10, 153.40
Stage 3	23	121.08 (107.35–137.66)	86.61, 159.82	23	90.99 (79.98–100.34)	52.20, 114.04
	No ROP vs stage 1 and 2: p=0.89			No ROP vs stage 1 and 2: p=0.55
	No ROP vs stage 3: p=0.02*			No ROP vs stage 3: p=0.01*

*p<0.05.
IQR, interquartile range; ROP, retinopathy of prematurity; tAA, temporal arteriolar angle; tVA, temporal venular angle.