We analysed the most recent life expectancy data from the ONS for men and women¹ which covered the period 2017-2019. We looked at what percentage of people were married, unmarried, had children, didn’t have children etc.
We then found authoritative, published studies about married life expectancy and childless life expectancy to determine how many ‘years’ this was believed to add/remove on average and how this varied by gender.
We then worked out what the married life expectancy and childless life expectancy ‘years’ equated to as a percentage of the average life (for men and women) and divided this against the percentage of people this status applied to create a more accurate formula that we could apply to national data, and data each local area.
https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/healthandlifeexpectancies/datasets/lifeexpectancyestimatesallagesuk
https://ethz.ch/content/dam/ethz/special-interest/mtec/cer-eth/resource-econ-dam/documents/research/ws-and-conf/sgvs-2005/057.pdf
https://www.mpg.de/14064449/children-influence-parents-life-expectancy
Please note, the data displayed in this article is correct at the point of publication 20/05/21.