Merge and Prepare NHANES Data in Stata (2011–2018): Full Workflow + Ready-to-Use Syntax

Learn how to merge, clean, and prepare NHANES data for analysis in Stata using a single, efficient workflow. This tutorial shows how to handle multiple NHANES cycles (2011–2018), harmonize key variables, restrict to adults (≥18), and set correct survey weights — ready for publication-quality analysis. 🔹 Get the complete annotated Stata syntax (ready to run) https://trakanalytica.com/data-insigh... Included in the full syntax package: • Merge four NHANES cycles (2011–2018) • Import and combine demographic + BMI/waist data • Harmonize race, education, and marital status variables • Restrict to adults aged 18+ • Apply complete-case analysis (no imputation) • Generate pooled 10-year survey weights • Set NHANES complex survey design in Stata • Fully annotated do-file, sample dataset structure, data dictionary, and Stata log output (PDF & text)