Table 2.

Inclusion criteria

Inclusion criteria
Topic	Examining the following exposures: socio-determinant of health, including: place of residence, race/ethnicity, occupation/income level, gender, religion, education, socio-economic status, social groups, marital status, health insurance ownerships, health seeking behaviour, family history of DM (PROGRESS+).
Population	Adults (aged 18 years and older) who have ever been diagnosed with diabetes (type 1 and type 2) by medical professional, either based on their medical record or self-reported; or measured diabetes during survey, but has no access to DM medication (untreated diabetes).
Study outcomes	Receive diabetes medication, or has access to diabetes medication as primary outcome.
Coverage/context	Lower income, lower middle-income, and upper middle-income countries as defined by the World Bank.
Study design	Cross-sectional (single or repeated), cross-country comparison, case-control (prospective or retrospective), cohort studies. We included both quantitative and qualitative approach.

DM, diabetes mellitus.