. Author manuscript; available in PMC: 2018 Jul 12.

Published in final edited form as: Am J Ophthalmol. 2018 Mar 15;189:127–138. doi: 10.1016/j.ajo.2018.02.012

Table II.

Visual acuity measures: Standard

Measure	Statistic	Early	Intermediate	Normal	P- value overall	P-value Early vs Intermediate	P-value Early vs Normal	P-value Intermediate vs Normal
	N	33	47	21
BCVA	Mean (SD)	81.03 (5.36)	81.30 (5.67)	83.81 (4.45)	0.15	0.73	0.07	0.10
BCVA	Min, Median, Max	69.0, 82.0, 90.0	64.0, 83.0, 92.0	73.0, 84.0, 90.0	0.15	0.73	0.07	0.10
LLVA	Mean (SD)	70.06 (6.56)	68.17 (7.21)	72.24 (4.76)	0.10	0.43	0.24	0.03
LLVA	Min, Median, Max	60.0, 70.0, 83.0	41.0, 69.0, 81.0	63.0, 73.0, 80.0	0.10	0.43	0.24	0.03
LLD	Mean (SD)	10.97 (4.52)	13.13 (5.80)	11.57 (3.19)	0.23	0.11	0.49	0.36
LLD	Min, Median, Max	4.0, 11.0, 20.0	4.0, 12.0, 34.0	7.0, 11.0, 17.0	0.23	0.11	0.49	0.36

Overall p-value based on Kruskal-Wallis test of difference among medians

Pair-wise p-values based on Wilcoxon rank sum test of difference between medians.