Relationship between Sitting Time and Insulin Resistance in 6931 U.S. Adults: The Mediating Role of Abdominal Adiposity

Table 1

Percentile values of the continuous variables representing men and women of the United States ().

Variable	IQR	Percentile
		10th	25th	50th	75th	90th
Age (years)	25.9	23.9	31.2	43.9	57.1	66.4
Smoking (cigarettes per day)	0	0	0	0	0	9.4
HOMA-IR	2.47	0.93	1.41	2.31	3.88	6.19
L-HOMA-IR	0.44	-0.03	0.15	0.36	0.59	0.79
Physical activity (min MVPA per wk)	236.9	0	0	57.4	236.9	471.1
Body mass index (kg/m^2)	8.3	21.7	24.1	27.8	32.4	37.7
Waist circumference (cm)	21.1	79.7	87.3	97.2	108.4	120.1
Sitting time (min per day)	258.7	114.3	215.4	338.6	474.1	597.4

IQR: interquartile range; HOMA-IR: homeostatic model assessment for insulin resistance; L-HOMA-IR: natural log of the HOMA-IR values; MVPA: number of minutes spent in moderate to vigorous physical activity per week. Table values include person-level weighted adjustments based on the sampling methods used by NHANES, so values are representative of the U.S. adult population.