# Title Page

**Title:** Obesity and Self-Reported Diabetes in U.S. Adults: A Survey-Weighted
Cross-Sectional Analysis of NHANES 2017-2018

**Short title:** Obesity and diabetes in NHANES 2017-2018

**Authors:** [Author One], [Author Two] (demonstration manuscript)

**Affiliations:** [Affiliation] (demonstration manuscript)

**Corresponding author:** [Name, email] (demonstration manuscript)

**Word count (body, Introduction through Conclusion):** see qc/_pipeline_log.md

**Tables:** 2  **Figures:** 2

**Reporting guideline:** STROBE (cross-sectional)

**Funding:** None (methods demonstration).

**Conflicts of interest:** None declared (methods demonstration).

**Data and code availability:** NHANES 2017-2018 is publicly available from the U.S. CDC.
Derived analytic data and analysis code accompany this report.

**AI/LLM use disclosure:** The authors used a large language model (Claude Opus 4.8,
Anthropic, accessed via the programmatic API in June 2026, deployed by the authors) to assist
with drafting and internal consistency checking of the manuscript text. All statistical
results were produced by executed analysis code; all text was reviewed, verified against the
analysis outputs, and approved by the authors, who take full responsibility for the work.
Generative AI was not used to create or alter any data, figures, or tables.

**Note (DEMO 3):** This is a clean-room demonstration manuscript produced by the medsci-skills
v3.7.0 pipeline on open NHANES data. Every quantitative claim traces to a CSV generated by
executed code; references are intentionally [UNVERIFIED] placeholders.