Prevalence of overweight and obesity among preschool children in Hainan: a cross-sectional study in China's largest free-trade zone.

Background And Aims: Childhood obesity leads to significant health risks, emphasizing the critical need for effective preventive measures during the preschool years. However, there is a lack of comprehensive studies on overweight and obesity among preschool children in Hainan Island, China's largest free-trade zone. Our study assessed the prevalence of overweight and obesity among preschool children across Hainan Island using Chinese, World Health Organization (WHO), and International Obesity Task Force (IOTF) criteria.

A better parameter in predicting insulin resistance: obesity plus elevated alanine aminotransferase.

Aim: To investigate the association of obesity and elevated alanine aminotransferase with insulin resistance and compare these factors with metabolic syndrome.

Methods: We enrolled a total of 1308 male workers aged from 22 to 63 years. Data was extracted from the workers' periodic health check-ups in hospitals.