schemaMediation

Mediation association schema

Description

schemaMediation() defines the result and artifact contract for mediation analyses returned as PolyGeniusAssociations objects.

Usage

schemaMediation()

Value

A schema definition list.

Result semantics

Mediation rows represent estimands from a mediation analysis rather than ordinary regression coefficients.

• outcome: endpoint being modeled in the outcome model.

• exposure: exposure or predictor whose effect is decomposed.

• mediator: mediator variable.

• term: reported mediation estimand.

• term.type: semantic estimand type, such as total, direct, indirect, or proportion.

• effect: method-specific effect label.

• effect.type: normalized effect type for plotting and filtering.

• effect.scale: scale of estimate, usually identity or proportion.

• estimate, se, lower, upper: estimand, standard error, and interval bounds.

• statistic, p.value, adj.p.value: inferential statistic and p-values where available.

• n: complete observations used by the mediation analysis.

• formula.mediator, formula.outcome: displayed mediator and outcome model formulas when available.

Artifacts

Optional effect.decomposition contains plot-ready total/direct/indirect effect summaries. Optional path.summary contains mediator and outcome path summaries. Optional bootstrap.distribution contains aggregate bootstrap summaries when the method generates them.