Figure 3b: Excess winter mortality index by age group, females, England and Wales, 2013/14 to 2015/16^{1,2,3,4,5,6}

Source: Office for National Statistics

Notes:

EWM figures are based on deaths occurring in each period (August through to the following July). Numbers of deaths from January to July 2016 are provisional, and have been adjusted to take account of late registrations (see Excess Winter Mortality Quality and Methodology Information document).

Figures for the latest winter are provisional and are rounded to the nearest 100, figures for all other winters are final and are rounded to the nearest 10.

The lower and upper confidence limits (LCL and UCL) form a confidence interval, which is a measure of the statistical precision of an estimate.

Totals for all ages will not be equal to the sum of the individual age groups due to rounding.

The excess winter mortality (EWM) index is calculated as excess winter deaths divided by the average non-winter deaths, expressed as a percentage.

Data include non-residents who died in England or Wales.