Table 5.

Comparison between BMI groups

RT Parameter	BMI			Analysis of Variance between groups **		Pairwise comparisons (post hoc analysis ***) P value
	Underweight (n = 69)	Normal (n = 340)	Obese (n = 209)	F	P value
VRT (msec)	284.70 ± 96.45	249.92 ± 83.32*	257.39 ± 98.80	4.39	0.01	Normal–Underweight = 0.009 Normal–Obese–High = 0.51 Underweight–Obese = 0.09
ART (msec)	232.95 ± 72.98	235.41 ± 84.97	239.83 ± 82.15	0.02	0.97	Normal–Underweight = 0.97 Normal–Obese–High = 0.99 Underweight–Obese = 0.97
CFFF (Hz)	26.15 ± 5.32	26.77 ± 5.58	26.72 ± 5.42	0.39	0.67	Normal–Underweight = 0.65 Normal–Obese–High = 0.72 Underweight–Obese = 0.99

p < 0.05, **analysis of variance, ***Tukey’s test

BMI body mass index