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Table 2 Summary of independent variables, sources of data and definition of variables

From: Mapping tuberculosis treatment outcomes in Ethiopia

Independent variables Data sources Definition
Socio-economic factors
 Low wealth index EDHS 2016 Total number of people with low wealth index (poorer and poorest) divided by the total number of people participated in the survey.
 Population density Ethiopia Atlas of Population Density Number of people per square kilometre
 Dependency ratio Ethiopia Atlas of Population Density Number of children (aged under 15 years) and elderly (aged 65+) dividing by the working-age population (aged 15–64 years)
 Average number of persons per room Ethiopia Atlas of Population Density Average number of people living in a room
 Unemployed population Ethiopia Atlas of Population Density Percentage of people in the labour force who were unemployed
 Adult literacy rate Ethiopia Atlas of Population Density Percentage of population aged 15 years and above who had attended higher than secondary school or who can read and write a short simple statement
Behavioural factors
 Chat chewing EDHS 2016 Total number of people chewing chat in the last 1 month prior to the survey divided by the total number of people participating in the survey
 Alcohol drinking EDHS 2016 Total number of people drinking alcohol in the month prior to the survey divided by the total number of people participating in the survey
Health care access and knowledge and attitude regarding TB
 Health care access problem EDHS 2016 Difficulty of getting advice or treatment due to lack of money, or distance to a health facility
 Good knowledge toward TB EDHS 2011 Number of people with good knowledge towards TB divided by the total number of people participating in the survey.
 Good attitude towards TB EDHS 2011 Number of people with good attitude towards TB divided by the total number of people participating in the survey
Climatic and environmental factors
 Enhanced vegetation index EDHS Spatial Analysis data The average enhanced vegetation index which is calculated by measuring the density of green leaves in the near-infrared and visible bands.
 Rainfall EDHS Spatial Analysis data Annual mean rainfall (mm)
 Aridity EDHS Spatial Analysis data The average aridity index calculated by dividing the actual evapotranspiration by the potential evapotranspiration.
 Mean temperature EDHS Spatial Analysis data Annual mean environmental air temperature (°C).