... Kowaleski-Jones, L., Duncan, G.J. Effects of Participation in the WIC Program on Birthweight: Evidence from the National Longitudinal Survey of 2972 Petrou S, Sach T, Davidson L. The long-term ... consequence of food insecurity.”These conceptual definitions were operationalized and a scale was developed to measure the operational conditions at the household level in the U.S. population ... Washington.” Journal of Nutrition Education 24 (1): 29S-35S, 199 2.4 Anderson, S.A. (ed.), “Core Indicators of Nutritional State for Difficult-to-Sample Populations.” J Nut, 199 0; 120 (11S): 155 7-1 600....