Spotlight on Longevity May 2013: Seasonal mortality

Significant seasonal variation in mortality is commonly observed in England and Wales population data.  

As well as more deaths occurring in winter months, the volatility of experience in winter between years is also significantly higher than in summer months.  This contributes to variation from one year to the next as well as seasonally.

Such features, and their trend over time, have important implications for mortality analyses.

Our Longevity Services team produce regular commentaries known as 'Spotlight on Longevity'.  These focus on topical issues for those involved in the management and transfer of longevity risk.

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