Table 2.

Comparisons of advanced glycation end products among three groups.

Group	Control	PG	EG	p Value
Mean ± SD	0.56 ± 0.15	0.56 ± 0.11	0.61 ± 0.11	<0.0001a **
95% CI	0.54 to 0.59	0.54 to 0.57	0.60 to 0.63
		vs control, p = 0.5120b	vs control, p = 0.0007b ##
			vs PG, p < 0.0001b ##

p values are calculated by one-way analysis of variance (ANOVA) (a). Post-hoc pair comparisons are performed using the unpaired t-test (b). The ** corresponds to the significance level at 1% (p < 0.01) for ANOVA. The ## correspond to the significance levels at 1% (p < 0.0033) by Bonferroni correction for multiple comparisons by the unpaired t-test among the three groups. SD, standard deviation; CI, confidence interval; PG, primary open-angle glaucoma group; EG, exfoliation glaucoma group.