Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / Content / content-misc

Nhanes Clinical Retrospective Biomarker

Q: How do I install the Nhanes Clinical Retrospective Biomarker Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/nhanes-clinical-retrospective-biomarker/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Category: Content · Sub-category: content-misc

Generates complete NHANES-style cross-sectional epidemiology + retrospective clinical validation research designs from a user-provided disease and biomarker direction. Always use this skill whenever a user wants to design, plan, or build a population-level biomarker association study using NHANES or similar survey datasets, especially when the article logic includes disease definition, biomarker formula derivation, multivariable logistic regression, restricted cubic spline analysis, subgroup stability testing, and a secondary hospital-based retrospective validation cohort. Covers five study patterns (cross-sectional association, dose-response / RCS, subgroup-stability, NHANES + retrospective validation, preliminary screening-performance) and always outputs four workload configs (Lite / Standard / Advanced / Publication+) with recommended primary plan, step-by-step workflow, figure plan, validation strategy, minimal executable version, publication upgrade path...

What this skill does

Nhanes Clinical Retrospective Biomarker is a community-contributed Claude Code skill in the content-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/nhanes-clinical-retrospective-biomarker/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Nhanes Clinical Retrospective Biomarker skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It is part of the open ClaudSkills registry, a community-curated catalog of 56,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/nhanes-clinical-retrospective-biomarker
curl -L https://claudskills.com/skills/nhanes-clinical-retrospective-biomarker/SKILL.md \
  -o ~/.claude/skills/nhanes-clinical-retrospective-biomarker/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/nhanes-clinical-retrospective-biomarker/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/nhanes-clinical-retrospective-biomarker/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\nhanes-clinical-retrospective-biomarker\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app