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. 2015 Nov 27;7(1):18–25. doi: 10.1016/j.phrp.2015.11.007

Table 2.

Classification and definition of independent variables.

Variable Definition Reference
Predisposing factors Gender 0 = Male Male
1 = Female
Age
Marital status 0 = No spouse No spouse
1 = Spouse
2 = Others
Enabling factors Education level 0 = Under elementary school Under elementary school
1 = Middle & high school
2 = Over college
Household income 1–5 quantile 1-quantile
Economic activity 0 = No No
1 = Yes
Insurance type 0 = Medical aid Medical aid
1 = National Health Insurance
Need factors Chronic disease 0 = No No
1 = Yes
Disability 0 = No No
1 = Yes