# Decision Curve Analysis

Use when evaluating the clinical utility of a binary prediction model from a single...

- Repository: https://github.com/aipoch/medical-research-skills (2020 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-09-17
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add aipoch/medical-research-skills --skill decision-curve-analysis -g -a claude-code -y`
Codex: `npx skills add aipoch/medical-research-skills --skill decision-curve-analysis -g -a codex -y`
Cursor: `npx skills add aipoch/medical-research-skills --skill decision-curve-analysis -g -a cursor -y`
Gemini CLI: `npx skills add aipoch/medical-research-skills --skill decision-curve-analysis -g -a gemini-cli -y`

## Description

Use when evaluating the clinical utility of a binary prediction model from a single clinical CSV file by fitting a logistic decision-curve model, plotting decision and clinical-impact curves, and exporting summary outputs. NOT for: survival calibration, ROC-only discrimination analysis, nomogram construction, or time-to-event outcomes.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Decision Curve Analysis

## When to Use

Use this skill when you need to:
- evaluate whether a binary prediction model adds clinical net benefit across threshold probabilities;
- visualize decision curves and clinical-impact curves from a clinical cohort;
- export an auditable DCA model object together with summary text and PDFs.

Typical user requests:
- "Run decision-curve analysis on this binary outcome and risk-score dataset."
- "Generate DCA and clinical-impact plots for this prediction model."
- "Compare net benefit across thresholds for this case-control cohort."

## When Not to Use

Do not use this skill for:
- time-to-event or survival outcomes;
- ROC-only discrimination analysis without decision-curve outputs;
- nomogram construction or calibration-curve analysis;
- multiclass outcomes or non-binary endpoints.

## When to Read External Files

| Situation | File to Read | Purpose |
|-----------|--------------|---------|
| Need algorithm details | `references/algorithm.md` | Statistical methods and formulas |
| Need to run analysis | `scripts/main.R` | Get the complete command |
| Encounter errors | `references/troubleshooting.md` | Find solutions |
| Need CLI examples | `references/cli-guide.md` | Parameter usage examples |

---

## Usage

```bash
Rscript scripts/main.R \
  --data_file ./clinical_dca_data.csv \
  --outcome_col fustat \
  --predictor_col riskScore \
  --output_dir ./output/
```

---

## Arguments

The rest: https://github.com/aipoch/medical-research-skills/blob/HEAD/awesome-med-research-skills/Data Analysis/decision-curve-analysis/SKILL.md