RT Journal A1 Hernandez DC, Francis LA, Doyle EA T1 NAtional school lunch program for all—reply JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2011 FD November 1 VO 165 IS 11 SP 1051 OP 1051 DO 10.1001/archpediatrics.2011.182 UL http://dx.doi.org/10.1001/archpediatrics.2011.182 AB We appreciate the comment by Dr Rainville on our article.1 The purpose of our study was to investigate the participation patterns of low-income children enrolled in the National School Lunch Program (NSLP) and the association between participation and body mass index trajectories among these children. We defined low-income children as children who resided in households with incomes 185% or below the federal poverty line or children eligible for free or reduced-price school lunches.