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Meta-analysis, and how to read a forest plot
Meta-analysis, and how to read a forest plot: pages on what pooling does, the forest plot part by part (square size, whisker, diamond, the line of no…
This launch guide maps the topic, the source base and the practical questions. Check the linked official authority before acting on a rule, deadline, price or safety requirement.
What this guide covers
Pages on what pooling does, the forest plot part by part (square size, whisker, diamond, the line of no effect), heterogeneity and I², fixed vs random effects, funnel plots and asymmetry, leave-one-out sensitivity, network meta-analysis, umbrella reviews, why a "systematic review" and a "review" are different objects, why two meta-analyses of the same question disagree, and what a Cochrane review does that a journal review does not.
Each section carries an interactive SVG forest plot the reader can perturb — drop the biggest study, flip a weighting — and watch the diamond move. Fourteen pages.
How to use it
Use Meta-analysis, and how to read a forest plot as a structured learning path: begin with the vocabulary, follow the evidence map, and keep the uncertainty labels attached to claims as you compare sources.
The page keeps the main question, its evidence base and its limits together in one canonical place. That makes it useful as a quick orientation and avoids splitting a broad subject into shallow pages before each narrower answer has enough verified material of its own.
Search vocabulary in four languages
Terminology changes across borders. These are example phrases people use for the same subject in Estonian, Finnish, Russian and English; they are included as a practical vocabulary aid, not as hidden keywords.
| Language | Example phrase |
|---|---|
| Estonian | metaanalüüs mis see on |
| Finnish | meta-analyysi ja systemaattinen katsaus ero |
| Russian | мета-анализ что это простыми словами |
| English | how to read a forest plot |
Evidence and provenance
The evidence map below records the primary, official or openly licensed material chosen for this guide. It is deliberately visible so a reader can tell the difference between a rule published by an authority, a measured dataset and an editorial explanation.
Source: own writing, plots computed; Cochrane Handbook v6 and PRISMA 2020 (CC BY) cited; example datasets taken from open-access reviews. · checked 2026-09-09
Source names are preserved even where an authority changes its web address. No figure is added to this launch page unless it is already present in the cited source description or can be computed from a named dataset.
Scope and boundaries
the existing systematic-review watcher monitors newly published reviews; this teaches a person to read one.
Connected TempoLife guides
The following paths are the intentional hand-offs named in the brief. They keep adjacent subjects separate while making the next useful reference easy to find.
Research
Continue to the related TempoLife reference.
Versus
Continue to the related TempoLife reference.
Why it belongs on TempoLife
/research, /versus.
Frequently asked questions
What does this guide cover?
Pages on what pooling does, the forest plot part by part (square size, whisker, diamond, the line of no effect), heterogeneity and I², fixed vs random effects, funnel plots and asymmetry, leave-one-out sensitivity, network meta-analysis, umbrella reviews, why a "systematic review" and a "review" are different objects, why two meta-analyses of the same question disagree, and what a Cochrane review does that a journal review does not. Each section carries an interactive SVG forest plot the reader can perturb — drop…
What evidence does it use?
own writing, plots computed; Cochrane Handbook v6 and PRISMA 2020 (CC BY) cited; example datasets taken from open-access reviews.
Where does this guide stop?
the existing systematic-review watcher monitors newly published reviews; this teaches a person to read one.
Turn the reference into a routine
TempoLife brings food, movement, sleep and everyday health habits into one private place when you want to track what happens next.