Fig. 1.

PRISMA-ScR flow chart for study selection process for a review of a review of modifiable and behavioural factors associated with childhood gastroenteritis in high-income countries, 1990–2018. Initially, 13,395 studies were found across four databases and citation searches. After removing duplicates (5313), 7985 more were excluded based on irrelevant titles and abstracts. 97 articles underwent full text review, with 78 being excluded. Reasons for exclusion included lack of consideration for modifiable and behavioural factors (56 articles), absence of subgroup analysis for all-age group participants (15 articles), and other factors such as ineligible study settings, lack of full-text availability, non-English texts, and review articles