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[Body mass index (BMI) in well-nourished Dominican children and adolescents].


 The body mass index (BMI) is currently the most accepted indicator of body fat for clinical purposes and is useful in definition of overweight or obesity. Most studies of BMI have been done in the United States, and very few anywhere have focused on evolving BMIs of children or adolescents. Data on weight and height of 2015 girls and 2053 boys 18 and younger in Santo Domingo gathered for a different study were used to calculate BMI. The sample children were evaluated in private clinics and health facilities in Santo Domingo and were all healthy and well nourished. Nearly all of the infants were bottle fed. A table presents the smoothed BMIs for the 3rd, 50th, and 97th percentiles separately for boys and girls at birth, 3, 6, 9, 12, 18, and 24 months, and each year through 18. The values corresponding to 120% and 80% of the median values are also shown. The values tended to rise in the first 9 months of life, especially in males. Values declined slowly between 9 months and 7 years and then progressively increased until 14 or 15 years, when the rate of increase slowed considerably. The pattern of slowing at 14 or 15 years resembles the corresponding pattern observed in skin folds.
