Data and code for Urinary DINCH biomarkers and HbA1c in US adults: NHANES 2011–2018

This data-and-code package supports the study “Urinary DINCH biomarkers and HbA1c in US adults: NHANES 2011–2018”. It contains analysis-ready derived data, statistical scripts, result tables and figures. The analyses cover urinary DINCH biomarker detection and concentration distributions, two-part and categorical HbA1c models, and secondary mortality analyses. This version includes joint exposure tests in HbA1c-restricted populations and a matched MHNCH-plus-MCOCH comparison with the German adult HBM-I value. The README documents data sources, reconstruction steps, software requirements and analytical limitations. Original NHANES XPT files are publicly available from the US National Center for Health Statistics; their expected filenames are documented. No direct personal identifiers are included. Manuscript documents and submission correspondence are not included in this package.