The second theme, the exposure, combined the exploded version of MESH headings "urban population" or "urban health" or "rural population" or "rural health" or "geography".
For example, P headings contain POPULATION, PARTICIPANTS, PATIENTS, SUBJECTS, SAMPLE, etc. Afterwards, abstracts containing distinctive sentence headings were automatically selected and the first sentences following the PICO descriptor marked with corresponding PICO elements.
The following data will be systematically extracted, by independent pairs of reviewers, under the following main headings: methods, population, data collection, data synthesis (themes and supporting quotations), results, discussion, conclusions and recommendations.
Our search strategy included free text and medical subject headings relevant to population and recommended care.
Medical subject headings, methods, patient population, interventions, and outcomes variables of these studies were used to identify relevant trials.
Search strings were developed based on identifying key words and medical subject headings related to the population (MHCPs in LMICs), the "intervention" (attitudes and behaviours), and potential outcomes (satisfaction, acceptability, access, utilization, and health-seeking behaviours).
Each article was assessed under the following headings; publication year and country, population and setting, definition and prevalence of multimorbidity, functional decline outcome measure, findings and follow up period (cohort studies).
The third Boolean heading combined the keywords/MESH headings related to critical illness and its different populations.
Note that population-mean endogenous headings can therefore differ significantly from the mean travel direction (see e.g. Stoddard et al. 1983 for FD neotropic migration over the Atlantic Ocean).
Column headings were Country of origin Study population and sample size Study design Tool(s) being investigated Study quality Outcome.
