TABLE 4.

Multivariable logistic regression analyses of the effect of chromium supplementation on diabetes in the full subpopulation¹

Predictor variable	OR	SE	(95% CI)	P > t
Analysis 1A, T2D-M1 (n = 28,539)
Supplement, yes; chromium, yes	0.73	0.06	(0.62, 0.86)	<0.001
Supplement, yes; chromium, no	0.89	0.06	(0.77, 1.03)	0.11
Female	0.71	0.04	(0.64, 0.79)	<0.001
Age category
18–29 y	0.24	0.04	(0.17, 0.32)	<0.001
50–70 y	4.15	0.38	(3.46, 4.98)	<0.001
≥70 y	5.56	0.45	(4.73, 6.54)	<0.001
Ethnicity
Mexican American	1.99	0.17	(1.68, 2.36)	<0.001
Other Hispanic	1.78	0.29	(1.28, 2.46)	<0.001
Non-Hispanic black	1.95	0.15	(1.68, 2.26)	<0.001
Other	2.58	0.36	(1.95, 3.40)	<0.001
BMI category
<18.5 kg/m2	0.14	0.07	(0.06, 0.36)	<0.001
25 to <30 kg/m2	1.73	0.17	(1.43, 2.10)	<0.001
≥30 kg/m2	4.799	0.46	(3.96, 5.79)	<0.001
SES category
25 to <50%	1.07	0.10	(0.90, 1.28)	0.43
50 to <75%	0.81	0.06	(0.70, 0.93)	0.004
75–100%	0.60	0.05	(0.52, 0.72)	<0.001
Analysis 1B, T2D-M2 (n = 28,211)
Supplement, yes; chromium, yes	0.81	0.05	(0.71, 0.91)	0.001
Supplement, yes; chromium, no	0.95	0.07	(0.82, 1.08)	0.42
Analysis 1 C, T2D-M1 (n = 28,539)
Supplement, yes; chromium, ≥2000 μg/30 d	0.72	0.07	(0.60, 0.87)	0.001
Supplement, yes; chromium, <2000 μg/30 d	0.75	0.08	(0.60, 0.93)	0.01
Supplement, yes; chromium, no	0.89	0.06	(0.77, 1.03)	0.11
Analysis 1D, T2D-M2 (n = 28,211)
Supplement, yes; chromium, ≥2000 μg/30 d	0.83	0.06	(0.72, 0.96)	0.01
Supplement, yes; chromium, <2000 μg/30 d	0.78	0.07	(0.66, 0.92)	0.004
Supplement, yes; chromium, no	0.95	0.07	(0.82, 1.09)	0.42

¹ HbA1c, glycated hemoglobin; SES, socioeconomic status; T2D-M1, type 2 diabetes defined on the basis of HbA1c values only; T2D-M2, type 2 diabetes defined by both HbA1c values and doctor diagnosis.