title: Erratum.
abstract: In Gina Kolata's article "Obese children: A growing problem" (Research News, 4 Apr., p. 20), a statement in the second paragraph of the third column on page 20 referring to a "boy's basal metabolic rate [dropping] by 200 calories an hour while he watched cartoons on television was incorrect. An extrapolation of the drop in the boy's metabolic rate to a 24-hour period would result in a drop of 200 calories a day.