“…Few studies have examined the relation between intra-generational social mobility and mortality where change in social position is considered within households or individuals ( Billingsley, 2012 , 2019 , 2020 ; Claussen, Smits, Naess, & Davey Smith, 2005 ; Ericsson, Pedersen, Johansson, Fors, & Dahl Aslan, 2019 ; Hart, Smith, & Blane, 1998 ; Nguyen & Nguyen, 2020 ; Pensola & Martikainen, 2003 ; Uggla & Billingsley, 2018 ). Most of these studies have been conducted in Europe or the United States and have evaluated social mobility based on a single indicator of socioeconomic conditions over time, mainly occupational position ( Billingsley, 2012 , 2019 , 2020 ; Hart et al, 1998 ; Uggla & Billingsley, 2018 ).…”