Skip to main content

Table 5 Comparison between BMI groups

From: How does cognitive function measured by the reaction time and critical flicker fusion frequency correlate with the academic performance of students?

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
  1. p < 0.05, **analysis of variance, ***Tukey’s test
  2. BMI body mass index