Fasting insulin sensitivity indices are not better than routine clinical variables at predicting insulin sensitivity among Black Africans: a clamp study in sub-Saharan Africans

Table 2 Regression coefficients from multiple robust linear models for the prediction of clamp-derived index by fasting insulin sensitivity indices accounting for the potential effect of sex and adiposity

	BMI		Waist		WHtR		BMI & WC		Fasting insulin		HOMA-IR		QUICKI		FIRI		Glucose/insulin
	β	p	β	p	β	p	β	p	β	p	β	p	β	p	β	p	β	p
Insuline sensitivity index	-	-	-	-	-	-	-	-	−1.472	0.01	−1.454	0.01	0.331	0.01	−1.454	0.01	1.761	0.03
Sex (female)	1.277	0.10	0.726	0.27	1.368	0.05	0.873	0.31	1.156	0.09	1.171	0.07	1.162	0.08	1.171	0.07	1.093	0.13
BMI	−200.3	0.0003	-	-	-	-	74.94	0.56	-	-	-	-	-	-	-	-	-	-
Waist	-	-	−8.964	<0.0001	-	-	6.130	0.30	−7.985	0.0002	−7.606	0.0004	−7.805	0.0002	−7.606	0.0004	−8.470	0.0002
WHtR					−8.1465	0.0002			-	-	-	-	-	-	-	-	-	-
R²	0.179		0.202		0.177		0.200		0.261		0.266		0.263		0.266		0.248

BMI: body mass index; WHtR: waist-to-height ratio; β: standard regression coefficient; R²: coefficient of determination.

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