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Excess Winter Mortality Index - Excluding COVID-19 (% extra deaths, all adults) (16273) Metric type
- Help text
- The percentage of extra deaths that occured due to winter, excluding those that had COVID-19 mentioned on the death certificate. The Excess Winter Mortality (EWM) index is calculated as the number of excess winter deaths divided by the average non-winter deaths, expressed as a percentage.
Calculated so that comparisons can be made between sexes, age groups and regions. An EWM index of 20 shows that there were 20 per cent more deaths in winter compared with the non-winter period.
Provisional figures at country and region level, are produced for the most recent winter using estimation methods, and so are rounded to the nearest 100 deaths. Data post 2019/20 should be treated with caution due to high numbers of deaths from COVID-19 in the summer period.
For data years 2020/21 onwards, instances where the number of winter deaths compared to non-winter deaths were equal to zero or a negative value an EWM index is presented. (For earlier years there EMW index was removed). A zero value for winter deaths compared to non-winter deaths are often affected by rounding so in these instances the winter mortality index can either be a positive or negative value. A negative winter mortality index means there were a higher number of deaths in the non-winter periods than the winter period.
Alternatively, figures are available including COVID-19 that have been calculated using deaths from all causes including those that had COVID-19 mentioned on the death certificate.
- Modified
- 20 Jan 2023
- Data last updated
- 13 Nov 2023
- Short label
- Excess Winter Mortality Index - Excl. COVID (%)
- Status
- Live
- Output precision
- 1
- Polarity
- a low value is good
- Measure
- Per cent
- Dataset
- Excess winter mortality data, England and Wales
- Source
- Office for National Statistics
- is found in the following lists
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