. 2020 Jun 20;10(3):189–196. doi: 10.4103/tjo.tjo_22_20

Table 2.

Comparison of retinal nerve fiber layer thickness in fellow eye of neuromyelitis optica with unilateral optic neuritis and control groups

RNFL	NMO (non-ON eyes)	Control	Mean difference (95% CI)	P
Superior temporal, mean (SD), µm	132.19 (10.96)	150.50 (15.58)	18.31 (10.80, 25.81)	<0.001^a
Superior nasal, mean (SD), µm	110.65 (21.14)	122.46 (18.81)	11.81 (0.66, 22.95)	0.038^a
Nasal, mean (SD), µm	72.35 (7.19)	77.81 (10.79)	5.462 (0.35, 10.57)	0.037^a
Inferior nasal, mean (SD), µm	106.96 (17.66)	115.38 (23.07)	8.423 (−3.02, 19.87)	0.146^a
Inferior temporal, median (IQR), µm	143.50 (14.00)	157.00 (15.00)	-	<0.001^b
Temporal, mean (SD), µm	72.54 (9.15)	78.15 (9.67)	5.62 (0.371, 10.86)	0.036^a
Central, mean (SD), µm	98.19 (9.30)	107.00 (6.82)	8.81 (4.266, 13.35)	<0.001^a

^aIndependent t-test, ^bMann–Whitney U-test. RNFL=Retinal nerve fiber layer, SD=Standard deviation, ON=Optic neuritis, IQR=Interquartile range, NMO=Neuromyelitis optica, CI: Confidence interval