Difference in Objectively Measured Physical Activity and Obesity in Children With and Without Siblings

Background/Context: Children without siblings (singletons) have higher rates of obesity than do children with siblings (nonsingletons). Higher moderate to vigorous physical activity (PA) and less sedentary behavior (SB) are associated with lower childhood obesity. Purpose: To examine the difference in PA and SB between singleton and nonsingleton children. Methods: Mothers of children ages 5.0–7.9 years old who were singletons or nonsingletons...