From the included articles, each reviewer will work
independently to extract data from the articles following a pre-specified
extraction sheet. The following data will be extracted from each paper into an
MS Excel spreadsheet: (1) author; (2) year of publication; (3) geography; (4)
study design; (5) study period / time period covered; (6) approach to stratification;
(7) data platform for stratification; (8) indicator variables used for
stratification; (10) key findings; and (11) items from the Template for
Intervention Description and Replication (TIDieR) checklist. TIDieR is a
12-item checklist that includes the brief name, why, what (materials), what
(procedure), who provided, how, where, when and how much, tailoring,
modifications, how well (planned), how well (actual) of a program.