omicverse-microbiome-meta-analysis

Combines cohort microbiome AnnData objects into a cross-cohort meta-analysis table with genus-level harmonization and I2 heterogeneity assessment.

13|2|Updated Apr 5, 2026
One-click install
npx skills add https://github.com/omicverse/omicverse-skills --skill omicverse-microbiome-meta-analysis
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: omicverse-microbiome-meta-analysis
Source: https://github.com/omicverse/omicverse-skills/tree/main/src/omicverse_skills/skills/microbiome-meta-analysis
Command: npx skills add https://github.com/omicverse/omicverse-skills --skill omicverse-microbiome-meta-analysis

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and assets (resource) components.

What problem does it solve?

This Skill helps you combine microbiome results from multiple cohorts into one statistically coherent meta-analysis instead of treating each study as an isolated finding.

Core Features & Use Cases

  • Cross-cohort harmonization: Merge per-study microbiome AnnData objects at a shared taxonomic rank such as genus and align features across cohorts.
  • Differential abundance pooling: Run per-study differential abundance analysis and pool effect sizes with inverse-variance fixed-effects or random-effects meta-analysis.
  • Heterogeneity assessment: Inspect Cochran I2 and per-study counts to see whether a signal truly replicates across cohorts or is driven by one study.
  • Method comparison: Compare wilcoxon, deseq2, and ancombc meta workflows to understand which method best recovers consistent signals.
  • Use case: A researcher has three 16S studies from different cohorts and needs one ranked table of shared biomarkers with combined log fold-change, FDR, and heterogeneity diagnostics.

Quick Start

Use this skill to combine your cohort-level AnnData files at the genus level, run a random-effects meta-analysis, and return a ranked table with combined effect sizes, FDR, n_studies, and I2.

Frequently Asked Questions about omicverse-microbiome-meta-analysis

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I combine microbiome results from multiple cohorts into one meta-analysis?

Cross-cohort meta-analysis merges per-study microbiome AnnData objects at a shared taxonomic rank like genus, aligning features across cohorts to produce one statistically coherent table of shared biomarkers instead of isolated findings.

How do I pool differential abundance results across multiple 16S microbiome studies?

Differential abundance pooling runs per-study analysis and combines effect sizes via inverse-variance fixed-effects or random-effects models, outputting a ranked table with combined log fold-change, standard error, FDR, and study counts.

How do I check heterogeneity in a microbiome meta-analysis to see if a signal replicates across cohorts?

Heterogeneity assessment inspects Cochran I2 and per-study counts to determine whether a differential abundance signal truly replicates across cohorts or is driven by a single study.

Can I compare wilcoxon, deseq2, and ancombc methods for microbiome meta-analysis?

Yes, you can compare wilcoxon, deseq2, and ancombc meta workflows to evaluate which method best recovers consistent cross-cohort signals during the differential abundance pooling process.

Does this meta-analysis approach require genus-level harmonization for 16S studies?

Yes, cross-cohort harmonization merges per-study microbiome AnnData objects at a shared taxonomic rank such as genus, specifically applying to 16S studies requiring feature alignment before pooling.

What outputs do I get from a random-effects microbiome meta-analysis?

The meta-analysis returns a ranked table containing combined log fold-change, combined standard error, p-value, FDR, number of studies, and I2 heterogeneity diagnostics for the evaluated biomarkers.