Kowaleski-Jones L, Duncan GJ. Effects of participation in the WIC Program on birthweight: evidence from the National Longitudinal Survey of Youth. Special Supplemental Nutrition Program for Women, Infants, and Children. Am J Public Health. May 2002;92(5):799-804.
This study examined the impact of maternal participation in WIC on birthweight. The authors concluded that after controlling for potential biases, a significant positive association between WIC participation and birthweight was observed.