<qa>  What percentage of preschoolers were overweight or obese?Over one third of preschoolers were either overweight 18.4 or obese 16.5. The majority 92 of caregivers of an overweightobese child inaccurately perceived that their child was in a normal BMI category. Foreign-born caregivers were significantly more likely to inaccurately perceive their childs BMI percentile category, versus US-born caregivers OR0.65, 95 CI, 0.48-0.88. Specifically, those born in South America OR0.59. 95 CI, 0.36-0.98, Central AmericaMexico OR0.59, 95 CI,0.41-0.85, and Caribbean Hispanic nations OR0.54, 95 CI 0.35-0.83 were significantly less likely to accurately perceive their childs BMI category, versus US-born caregivers. 