The Reproducibility and Reliability of Insulin Sensitivity and Secretion Indices in Children and Adolescents

Table 1

Medians and interquartile ranges for each insulin secretion, insulin sensitivity, and OGTT measures.

Category	Measures	Visit 1—median (IQR)	Visit 2—median (IQR)
Insulin sensitivity	HOMA-IR	3.67 (2.43–5.28)	3.29 (2.28–4.85)
	QUICKI	0.14 (0.13–0.15)	0.14 (0.13–0.15)
	FGIR	4.94 (3.54–7.18)	5.59 (3.56–7.76)
	1/fasting insulin	0.06 (0.04–0.09)	0.06 (0.04–0.09)
	WBISI	2.84 (1.90–4.22)	2.97 (1.98–4.66)
Insulin secretion	HOMA-B	284.87 (189.00–416.57)	259.71 (185.14–406.29)
	IGI	2.82 (1.55–4.66)	2.82 (1.59–4.72)
	DI	7.18 (4.77–11.43)	7.58 (5.31–11.86)
OGTT measures	G0	86 (81–91)	86 (80–90)
	G120	101 (85–113)	97 (85–112)
	I0	17.2 (11.6–23.2)	15.9 (11.0–23.0)
	I120	73.4 (45.0–119.5)	67.1 (42.0–114.9)

For each measure of insulin sensitivity, insulin secretion, and OGTT-derived glucose and insulin at time 0 min and 120 min, we state the median value with the interquartile range (IQR) at each visit.