Table 4.

SUS scores according to sex, age, and BMI

Variable	SUS			P
	Median	Q1	Q3
Sex				0.442*
Male	81.25	72.50	87.50
Female	75.00	65.00	87.50
Age (yr)				0.798†
20–29	78.75	76.25	86.25
30–39	72.50	65.00	87.50
40–49	80.00	65.00	97.50
≥50	73.75	67.50	86.25
BMI (kg/m2)				0.700*
≥25.0 and <30	77.50	65.00	87.50
≥30	76.25	71.25	92.50

^*Wilcoxon rank-sum test;

^†Kruskal Wallis test.

SUS, System Usability Scale; BMI, body mass index; Q, quartile.