Table 6.

Effects of WIC Clinic Access in ZIP Code of Residence on Birth Outcomes: IV-Mother FE Method

	Birth Weight (g)	Low Birth Weight (<2500g)	Gestation (weeks)	Premature (<37 weeks)	Child Breastfed	Child Matched to Death Record
A. All Mothers: IV-Mother FE
Mean of Dependent Variable	3274.410	0.060	38.431	0.091	0.745	0.004
Any WIC Clinic in Zip Code of Residence During Pregnancy	27.3023** (7.9839)	−0.0053 (0.0056)	0.0582 (0.0417)	−0.0037 (0.0109)	0.0201 (0.0168)	−0.0011 (0.0019)
N	612,640	612,640	612,686	612,686	608,982	612,551
B. Mothers with High School Degree or Less at Time of First Birth: IV-Mother FE
Mean of Dependent Variable	3236.176	0.069	38.423	0.098	0.682	0.004
Any WIC Clinic in Zip Code of Residence During Pregnancy	32.5030*** (8.9690)	−0.0100+ (0.0053)	0.0711 (0.0569)	−0.0054 (0.0126)	0.0405** (0.0185)	0.0003 (0.0024)
N	371,504	371,504	371,533	371,533	369,000	371,424
C. Mothers with College Degree at Time of First Birth: IV-Mother FE
Mean of Dependent Variable	3381.123	0.038	38.535	0.067	0.913	0.004
Any WIC Clinic in Zip Code of Residence During Pregnancy	16.3060 (14.9501)	−0.0112 (0.0116)	0.0929 (0.0753)	0.0014 (0.0088)	−0.0217 (0.0168)	−0.0006 (0.0030)
N	107,477	107,477	107,483	107,483	107,076	107,477

Notes: Each coefficient in each panel is from a separate regression. See Table 3 for more information about the sample, controls, and the IV-Mother FE estimation method.

Significance levels:

⁺p<0.10

^**p<0.05

^***p<0.001