"Figure 4a: Excess winter mortality index by age group, males","" "England and Wales, between 2015 to 2016 and 2017 to 2018","" "","" "Notes","1. Excess winter mortality (EWM) figures are based on deaths occurring in each period (August through to the following July). Numbers of deaths from January to July 2018 are provisional, and have been adjusted to take account of late registrations (see Excess Winter Mortality Quality and Methodology Information report). 2. Totals for all ages will not be equal to the sum of the individual age groups due to rounding. 3. The EWM index is calculated as excess winter deaths divided by the average non-winter deaths, expressed as a percentage. 4. Figures for England and Wales include deaths of non-residents." "Unit","Excess winter mortality index" "","" "Age","0-64","65-74","75-84","85+" "2015 to 2016","11.1","11.2","13.4","17.5" "2016 to 2017","8.7","10.8","17.8","27.5" "2017 to 2018","19.2","19.4","26.5","36.1"