Table 2.

Odds Ratio, 95% confidence interval, and P-value from multivariable logistic regression for HOMA-IR

Variable		Male			Female
		aOR	95% CI	P-value	aOR	95% CI	P-value
WHtR#	T1 (ref)	1			1
	T2	1.66	0.66–4.17	0.2783	5.38	2.00–14.49	0.0009
	T3	5.56	2.02–15.28	0.0009	5.68	2.23–14.48	0.0003
WHtR#*	T1 (ref)	1			1
	T2	2.00	0.83–4.83	0.1218	4.81	1.94–11.92	0.0007
	T3	5.83	2.34–14.52	0.0002	5.06	2.10–12.20	0.0003
WHtR§	M: ≤ 0.59; F: ≤ 0.60 (ref)	1			1
	M: > 0.59; F: > 0.60	4.51	1.99–10.22	0.0003	2.31	1.09–4.92	0.0299
WHtR§*	M: ≤ 0.59; F: ≤ 0.60 (ref)	1			1
	M: > 0.59; F: > 0.60	4.54	2.17–9.50	< 0.0001	2.54	1.22–5.26	0.0124
WHtR	≤ 0.55 (ref)	1			1
	> 0.55	3.26	1.38–7.69	0.0072	3.73	1.54–9.03	0.0035
WHtR*	≤ 0.55 (ref)	1			1
	> 0.55	3.99	1.73–9.17	0.0011	3.31	1.49–7.37	0.0033
WHtR	≤ 0.5 (ref)	1			1
	> 0.5	1.16	0.21–6.46	0.8673	2.63	0.43–16.08	0.2944
WHtR*	≤ 0.5 (ref)	1	0.21–6.46	0.8673	2.63	0.43–16.08	0.2944
	> 0.5	2.00	0.38–10.58	0.4151	2.77	0.47–16.41	0.2603

^# waist-to-height ratio tertiles: Male: ≤ 0.55 T1, > 0.55- ≤ 0.59 T2, > 0.59 T3; Female: ≤ 0.56 T1, > 0.56- ≤ 0.6 T2, > 0.6 T3; (ref)-reference category

*multiple imputations

§ Male ≤ 0.59 v > 0.59, Female ≤ 0.6 v > 0.6, & ≤ 0.50 v > 0.50

All models adjusted for age, race/ethnicity, parents education, occupation, and Tanner stage