Table 1 Inclusion and exclusion criteria
Category | Included | Excluded |
|---|---|---|
Population | Children and adults residing in low- and middle-income country (based upon World Bank country classification). | Children and adults residing in a high-income country (based upon World Bank country classification); livestock or pets |
Intervention/exposure and comparator | Household flooring: unfinished or natural (earth, soil, sand, clay, mud, dung) versus finished (polished wood, tiles, cement, stone, bricks) Confounders: unimproved drinking water (e.g. unprotected spring, well, or surface water) and/or sanitation (e.g. shared latrine, pit latrine without slab, hanging toilet or hanging latrine, flush/pour flush to elsewhere, bucket, no facilities, or bush or field), low socio-economic status | Studies not assessing household flooring type as an exposure |
Study design | Quantitative studies including: randomized and non-randomized controlled trials, cohort, cross sectional, case-control | Qualitative studies (e.g. on process and perception of interventions); quantitative studies not measuring exposure or outcome status |
Outcome | Diarrhoea and/or presence of intestinal parasites (soil-transmitted helminth or protozoa) Secondary outcomes: diarrhoeal pathogen species (if laboratory confirmed) and/or intestinal parasite species (if laboratory confirmed) | Non-enteric infection or parasitism |