SHORT SLEEP, BODY WEIGHT AND PROBLEMS IN CHILDREN
Longitudinal Association between Short Sleep, Body Weight, and Emotional and Learning Problems in Hispanic and Caucasian Children
Graciela E. Silva, PhD, MPH1; James L. Goodwin, PhD2,3,5; Sairam Parthasarathy, MD3,4; Duane L. Sherrill, PhD5; Kimberly D. Vana, MS, FNP-BC1; Amy A. Drescher, PhD, RD2; Stuart F. Quan, MD2,3,6
1College of Nursing & Health Innovation, Arizona State University, Phoenix, AZ; 2Arizona Respiratory Center, University of Arizona, Tucson, AZ; 3College of Medicine, University of Arizona, Tucson, AZ; 4Southern Arizona VA Health Care System and Department of Medicine, University of Arizona, Tucson, AZ; 5Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ; 6Division of Sleep Medicine, Harvard Medical School, Boston, MA
To determine the impact of lower amounts of childhood sleep assessed by polysomnogram on development of obesity, being anxious or depressed, or having learning problems 5 years later.
Subjects were 304 community participants from the Tucson Children's Assessment of Sleep Apnea study, aged 6–12 years old at baseline.
Measurements and Results:
Children were classified according to baseline sleep as those who slept ≥ 9 h/night, those who slept > 7.5 to < 9 h/night, and those who slept ≤ 7.5 h/night. Odds of overweight/obese (≥ 85th BMI percentile), obese (≥ 95th BMI percentile), anxious or depressed, and learning problems at follow-up were assessed according to baseline sleep categories. Children who slept ≤ 7.5 h/night had higher odds of being obese (OR = 3.3, P < 0.05) at follow-up than children who slept ≥ 9 h/night. Borderline significance for overweight/obese (OR = 2.2, P < 0.1), anxious or depressed (OR = 3.3, P < 0.1), and having learning problems (OR = 11.1, P < 0.1) were seen for children who slept ≤ 7.5 h/night as compared to those who slept ≥ 9 h/night. A mean increase in BMI of 1.7 kg/m2 (P = 0.01) over the 5 years of follow-up was seen for children who slept ≤ 7.5 h/night compared to those who slept ≥ 9 h/night. These relationships did not differ between Hispanic and Caucasian children.
Children with reduced amounts of sleep (≤ 7.5 h/night) had an increased risk for higher body weight in early adolescence. Similarly, children who slept ≤ 7.5 h/night had higher risk of being anxious or depressed or having learning problems in early adolescence.
Silva GE; Goodwin JL; Parthasarathy S; Sherrill DL; Vana KD; Drescher AA; Quan SF. Longitudinal association between short sleep, body weight, and emotional and learning problems in Hispanic and Caucasian children. SLEEP 2011;34(9):1197-1205.