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Table 1 Coding of used variables
| Variable | Coding | |
|---|---|---|
| Dependent Variable | NHIS enrolment | Coded dichotomously yes – having a valid NHIS card – and no – not having a valid NHIS card |
| Community level variables | Hospital in community | Coded dichotomously. Reference: None |
| Healthcare clinic in community | Coded dichotomously. Reference: None | |
| Motorable road passes through community | Coded dichotomously. Reference: None | |
| Region | Included the 10 regions in Ghana with Upper West used as reference | |
| Household level variables | Standard of living | Expenditure quintile. Reference category: Poorest (1st quintile) |
| Employment status of head | Converted into 4 categories: employee public, employee private, self-employed, other inactive. Reference category: employee public | |
| Internet access | Coded dichotomously using the category no access as reference | |
| Household size | Log household size | |
| Individual level variables | Sex | Coded dichotomously using the category male as reference |
| Education | Converted into 3 categories from none to secondary/ higher education with no education as reference category | |
| Marital status | Grouped into 3 categories: married/cohabiting, never married/separated/divorced and widowed. Reference category: married/cohabiting | |
| Disability | Coded dichotomously into yes - suffering from disabilities that limit his/her full participation in life activities - and no – not suffering from disabilities that limit his/her full participation in life activities. Latter was used as the reference category | |
| Religion | Grouped into none (reference category), Christian and Muslim | |
| Ethnicity | Grouped into seven categories. Reference category: Akan |
