Chang‐Xing Ma

Potential Role of Vitamin C in the Associations of Serum Per- and Polyfluoroalkyl Substances with Bilirubin and Albumin in U.S. Adolescents and Young Adults: NHANES 2011–2018

Research on per- and polyfluoroalkyl substances (PFAS) and biomarkers potentially related to oxidative stress in adolescents is limited. We investigated associations between serum PFAS and total bilirubin and albumin among 1474 participants aged 12–20 years using National Health...

Testing Risk Difference of Two Proportions for Combined Unilateral and Bilateral Data

ABSTRACT In clinical studies with paired organs, binary outcomes often exhibit intra‐subject correlation and may include a mixture of unilateral and bilateral observations. Under Donner's constant correlation model, we develop three likelihood‐based test statistics (the likelihoo...