"Figure 8: The Slope Index of Inequality in male and female healthy life expectancy at birth has narrowed since 2011 to 2013","" "Slope Index of Inequality, Wales, 2011 to 2013 to 2017 to 2019","" "","" "Notes","1. Deprivation deciles are based on the Welsh Index of Multiple Deprivation (WIMD), which is the official measure of relative deprivation. Deprivation deciles for periods 2011 to 2013 to 2015 to 2017 are based on WIMD 2014 and for periods 2016 to 2018 and 2017 to 2019 WIMD 2019 was used. 2. Decile 1 represents the most deprived 10% (or decile) of small areas in Wales and Decile 10 represents the least deprived 10% (or decile) of small areas in Wales. 3. The Slope Index of Inequality is calculated by taking the difference between the extremes of a population weighted regression line of best fit. 4. The health state prevalence estimates used to estimate healthy life expectancy are sourced from Annual Population Survey (APS) data and data from the 2011 Census. The APS excludes residents of communal establishments except NHS housing and students in halls of residence where inclusion takes place at their parents' address." "Unit","Years" "","" "Life expectancy","Males","Females" "2011 to 2013","18.3","20.5" "2012 to 2014","18.0","20.5" "2013 to 2015","18.8","20.6" "2014 to 2016","18.4","19.8" "2015 to 2017","18.1","19.4" "2016 to 2018","18.2","19.1" "2017 to 2019","17.0","18.3"