BackgroundThe association between socioeconomic status (SES) and health is well-documented; however limited evidence on the relationship between SES and gastrointestinal (GI)...

Cost components linked to the model paths in the base case.

Definitions of unpublished, grey and published study data.

a Adjusted for the sex of the child b crude models, only adjusted for sex of the child c 95% confidence intervals of β. Association of parental education and health...

Summary of secondary outcomes-participant disposition.

Summary of sensitivity and subgroup analyses.

Univariate and multivariate random-effects meta-regression for GI infection risk between low and high SES groups.

Example Search Criteria for Databases.

Outcomes of the included methodological research projects.

a World Bank (2012). Country and Lending Groups, Low and Lower Middle Income countries [cited August 29, 2013]; Available from:...

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Summary of secondary outcomes.

Number of discrepancies between PSSA and parallel group designs.

Parameters related to costs per surgery.

Sanitation in neighbourhood and household domains can provide primary protection against diarrhea morbidity, yet their distinct health benefits have not been succinctly...

Main characteristics of articles included in this review.

Evaluation of model fit.

Characteristics of included studies.

Main characteristics of the included methodological research projects.

Main characteristics of studies included in analyses.