Daisy Zamora|Penny Gordon?Larsen|David R. Jacobs|Barry M. Popkin
Diet quality and weight gain among black and white young adults: the Coronary Artery Risk Development in Young Adults (CARDIA) Study (1985–2005)
University of North Carolina at Chapel Hill
background little known longterm health consequences following 2005 dietary guidelines americans dga washington dc us government printing office 2005 objective objective examine longitudinal association diets consistent 2005 dga subsequent weight gain design used data coronary artery risk development young adults cardia study cohort black white men women aged 1830 baseline attended 7 examinations 19851986 20052006 n 4913 created 100point diet quality index 2005 dqi rate participants diets based meeting 2005 dga key recommendations longitudinal models weight gain adjusted physical activity smoking energy intake age education sex initial body mass index bmi included interaction terms dqi race initial bmi statistically significant results found effect modification race likelihood ratio test p 003 models mean adjusted 20y weight change 194 kg blacks 112 kg whites high diet quality dqi 70 178 blacks 139 whites dqi 50 p 005 racespecific cox models interaction terms dqi initial bmi p 005 10point increase dqi score associated 10 lower risk gaining 10 kg whites initial bmi kgm2 25 15 higher risk blacks baseline obesity p 0001 conclusions findings support hypothesis diet consistent 2005 dga benefits longterm weight maintenance american young adults greater need attention obesity prevention future dgas warranted