TY - JOUR T1 - NAtional school lunch program participation and sex differences in body mass index trajectories of children from low-income families AU - Hernandez DC, Francis LA, Doyle EA Y1 - 2011/04/01 N1 - 10.1001/archpediatrics.2010.253 JO - Archives of Pediatrics & Adolescent Medicine SP - 346 EP - 353 VL - 165 IS - 4 N2 - In 2007-2008, approximately 36% of US children aged 6 to 11 years were classified as overweight and approximately 20% were considered obese.1 The prevalence of obesity among US children and adolescents aged 10 to 17 years increased by 10% between 2003 and 2007. During the same time period, the prevalence of obesity among girls increased approximately 18%.2 Pediatric obesity has been associated with type 2 diabetes, cardiovascular disease, several types of cancer, and hypertension, especially when tracked into adulthood.3 Obesity among young girls has been associated with early puberty,4- 6 and early puberty among young girls has been linked to unfavorable body image,7- 8 eating problems,9 depression,10 earlier onset of sexual intercourse,11 and breast cancer in womanhood.12- 15 SN - 1072-4710 M3 - doi: 10.1001/archpediatrics.2010.253 UR - http://dx.doi.org/10.1001/archpediatrics.2010.253 ER -