Fawaz Mzayek1, J Kennedy Cruickshank2, Doris Amoah3, Sathanur Srinivasan4, Wei Chen4, Gerald S Berenson5. 1. Division of Epidemiology, Biostatistics and Environmental Health, University of Memphis School of Public Health, Memphis, TN. Electronic address: fmzayek@memphis.edu. 2. Cardiovascular Medicine Group, Diabetes and Nutritional Science Division, King's College, London, UK. 3. Division of Epidemiology, Biostatistics and Environmental Health, University of Memphis School of Public Health, Memphis, TN. 4. Center of Cardiovascular Health, Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA. 5. Center of Cardiovascular Health, Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA; Louisiana State University Health Sciences Center, Section of Cardiology, LSU, New Orleans.
Abstract
PURPOSE: Birth weight (BW) is associated with risk of cardiovascular (CV) disease. The findings from studies examined the association of BW with metabolic markers of CV risk were inconsistent and controversial. We examined the association of BW with insulin resistance and blood lipids using repeated measures up to mid-adulthood. METHODS: Data from seven screenings of the Bogalusa Heart Study-a longitudinal study of cardiovascular risk factors in Bogalusa, LA-are analyzed using generalized estimation equations method. Participants with birth data and at least one measurement of study outcomes between 18 and 44 years (n = 2,034) were included. RESULTS: BW is inversely associated with insulin resistance, triglycerides, and total cholesterol (P < .01 for all). For 1-kg decrease in BW, insulin resistance increased by 2.3 units, 95% confidence interval (CI) = 0.7-3.9; triglycerides by 8.7 mg per dL, 95% CI = 4.9-12.4, and total cholesterol by 5.4 mg per dL, 95% CI = 1.8-9.1. The association of body mass with adult blood lipids levels is weaker in persons with low versus normal BW. CONCLUSIONS: The study provides strong evidence of an inverse relationship of BW with adulthood cardiometabolic risk profile. Persons born with low BW are maybe less responsive to preventive interventions aiming at weight reduction.
PURPOSE: Birth weight (BW) is associated with risk of cardiovascular (CV) disease. The findings from studies examined the association of BW with metabolic markers of CV risk were inconsistent and controversial. We examined the association of BW with insulin resistance and blood lipids using repeated measures up to mid-adulthood. METHODS: Data from seven screenings of the Bogalusa Heart Study-a longitudinal study of cardiovascular risk factors in Bogalusa, LA-are analyzed using generalized estimation equations method. Participants with birth data and at least one measurement of study outcomes between 18 and 44 years (n = 2,034) were included. RESULTS: BW is inversely associated with insulin resistance, triglycerides, and total cholesterol (P < .01 for all). For 1-kg decrease in BW, insulin resistance increased by 2.3 units, 95% confidence interval (CI) = 0.7-3.9; triglycerides by 8.7 mg per dL, 95% CI = 4.9-12.4, and total cholesterol by 5.4 mg per dL, 95% CI = 1.8-9.1. The association of body mass with adult blood lipids levels is weaker in persons with low versus normal BW. CONCLUSIONS: The study provides strong evidence of an inverse relationship of BW with adulthood cardiometabolic risk profile. Persons born with low BW are maybe less responsive to preventive interventions aiming at weight reduction.
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