That life expectancy rate was projected to be the same for 110-year-olds, or supercentenarians, hence the plateau.
"Our data tell us that there is no fixed limit to the human lifespan yet in sight," said Kenneth Wachter, Professor at the University of California, Berkeley.
"Not only do we see mortality rates that stop getting worse with age, we see them getting slightly better over time," he added.
To date, the oldest human on record, Jeanne Calment of France, died in 1997 at age 122 years and 164 days.
According to researchers, those who survive do so because of demographic selection and/or natural selection.
Frail people tend to die earlier while robust people, or those who are genetically blessed, can live to extreme ages, they noted.
For the study, published in the journal Science, the team tracked the death rate of 3,836 Italians -- who were aged 105 and older between 2009 and 2015.
The result showed that Italian women born in 1904 who reached age 90 had a 15 per cent chance of dying within the next year, and six years, on average, to live.
If they made it to 95, their odds of dying within a year increased to 24 percent and their life expectancy from that point on dropped to 3.7 years.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)
Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.
We, however, have a request.
As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.
Support quality journalism and subscribe to Business Standard.