Potential causal associations between adiposity and hydration status in children and adolescents: evidence from negative control and Mendelian randomization analyses
This study examined the potential causal association between body mass index (BMI), waist circumference (WC), and hydration status among children and adolescents. Participants aged 6–18 years were recruited from 10 cities in Henan Province, China, using a three-stage cluster random sampling strategy. BMI...