TABLE 3.

Correlation between diet quality scores and estimated nutrient intake¹

	GDQS		GDQS+		GDQS−		AHEI-2010		MDD-W
	ρ	P	ρ	P	ρ	P	ρ	P	ρ	P
Nutrient intake
Calcium	0.10	<0.001	0.18	<0.001	−0.23	<0.001	0.19	<0.001	0.24	<0.001
Fiber	0.29	<0.001	0.31	<0.001	−0.12	<0.001	0.25	<0.001	0.23	<0.001
Folate	0.35	<0.001	0.39	<0.001	−0.21	<0.001	0.30	<0.001	0.37	<0.001
Iron	0.25	<0.001	0.27	<0.001	−0.11	<0.001	0.32	<0.001	0.27	<0.001
Monounsaturated fat	0.21	<0.001	0.25	<0.001	−0.18	<0.001	0.03	0.119	0.26	<0.001
Protein	0.23	<0.001	0.25	<0.001	−0.12	<0.001	0.17	<0.001	0.35	<0.001
Polyunsaturated fat	0.20	<0.001	0.24	<0.001	−0.17	<0.001	0.62	<0.001	0.19	<0.001
Saturated fat	0.10	<0.001	0.17	<0.001	−0.23	<0.001	0.03	0.108	0.23	<0.001
Total fat	0.26	<0.001	0.34	<0.001	−0.31	<0.001	0.39	<0.001	0.34	<0.001
Vitamin A	0.14	<0.001	0.12	<0.001	0.01	0.414	0.12	<0.001	0.18	<0.001
Vitamin B12	−0.11	<0.001	−0.14	<0.001	0.11	<0.001	0.01	0.502	−0.03	0.147
Zinc	0.23	<0.001	0.20	<0.001	0.03	0.156	0.05	0.008	0.26	<0.001
Score
GDQS	1		0.94	<0.001	−0.08	<0.001	0.38	<0.001	0.72	<0.001
GDQS+	—		1		−0.39	<0.001	0.43	<0.001	0.76	<0.001
GDQS−	—		—		1		−0.24	<0.001	−0.29	<0.001
AHEI-2010	—		—		—		1		0.34	<0.001
MDD-W	—		—		—		—		1

¹All estimated nutrient intakes were adjusted for energy. P values for score correlations are based upon asymptotic approximations of the t/F distribution. AHEI-2010, Alternative Healthy Eating Index–2010; GDQS, Global Diet Quality Score; GDQS−, Global Diet Quality Score negative submetric; GDQS+, Global Diet Quality Score positive submetric; MDD-W, Minimum Diet Quality for Women.