https://www.sciencedaily.com/releases/2021/09/210928121335.htm

The researchers categorized all Norwegian employees in 2003 aged 33-52 in 335 occupations using the Routine Task Intensity (RTI) index, a weighted sum of selected job characteristics based on an occupation's routine cognitive or physical tasks that can potentially be automated or outsourced. The sample was composed of 416,003 men and 376,413 women.

"Because we can follow the earnings and social security history of these workers for 15 years, through 2018, we limited the data extract to those aged 33-52 in 2003 -- wage earners in their prime earnings age -- and observed employment and disability status in 2018 and mortality status in 2019," noted Vegard Skirbekk, PhD, professor of population and family health at Columbia Mailman School of Public Health, and senior author. "The key findings are robust to controlling for other factors, such as educational attainment, and persist when we compared siblings working in jobs with different levels of routine intensity. "