Table 2.

Predicted HEI-2015 Scores from Unadjusted Difference-in-Difference Analysis without Propensity Score Weighting, NHANES 2005–2008 and 2011–2016

	2005–2008			2011–2016			Difference-in-Difference 1
HEI-2015 Scores	Non-WIC	WIC	Difference1	Non-WIC	WIC	Difference1
Total Score	52.37	53.89	1.52 (0.84)+	53.61	55.81	2.20 (0.76)**	0.68 (1.13)
Total Fruits	3.55	3.86	0.31 (0.12)*	3.64	3.77	0.13 (0.11)	−0.18 (0.17)
Whole Fruits	3.19	3.24	0.05 (0.15)	3.27	3.23	−0.04 (0.14)	−0.09 (0.21)
Total Vegetables	2.21	2.27	0.07 (0.10)	2.06	2.22	0.16 (0.09)+	0.09 (0.13)
Greens and Beans	1.06	1.21	0.16 (0.14)	1.14	1.36	0.22 (0.13)+	0.06 (0.19)
Whole Grains	2.01	1.81	−0.20 (0.19)	2.99	2.84	−0.15 (0.18)	0.05 (0.26)
Dairy	8.25	8.41	0.16 (0.19)	7.73	7.80	0.07 (0.18)	−0.08 (0.26)
Total Protein Foods	3.78	3.91	0.13 (0.10)	3.71	3.78	0.07 (0.07)	−0.07 (0.13)
Seafood and Plant Proteins	1.98	1.93	−0.04 (0.15)	1.71	1.99	0.29 (0.14)*	0.33 (0.20)
Fatty Acids	2.74	2.54	−0.20 (0.22)	3.47	3.91	0.44 (0.20)*	0.64 (0.30)*
Refined Grains	6.33	6.61	0.29 (0.24)	5.90	5.93	0.03 (0.22)	−0.26 (0.32)
Sodium	6.04	6.19	0.15 (0.23)	5.48	5.54	0.06 (0.20)	−0.10 (0.30)
Added Sugars	6.17	6.86	0.69 (0.21)**	6.98	7.47	0.48 (0.19)*	−0.21 (0.28)
Saturated Fats	5.06	5.03	−0.04 (0.22)	5.53	5.98	0.45 (0.20)*	0.49 (0.30)
Observations	285	496		331	641		1,753

¹Standard errors are in parenthesis.

⁺p < 0.1

^*p < 0.05

^**p < 0.01

^***p < 0.001