Pacific Islanders are among the world's most obese populations while Asians, although of relatively low body mass index (BMI), carry much of their body fat in the upper body and exhibit greater health risk at the same BMI. Through this project, the investigators hope to learn more about body size and composition in children of the Pacific Region for whom there are few national data. In addition, evaluate the effectiveness of a community-based intervention within a health care system on managing overweight in children.