Yup. Can’t do actual numbers without doing a literature search which I’m honestly not inclined to do at this time of night.
But I think the last time I heard the numbers, it was about a 4yr projected increased lifespan by being an indoors cat. Less to no exposure to communicable diseases like FELV and FIV, no cars to get run over by, generally fewer incidences of cat fights resulting in abscesses/potential sepsis, and depending on area, no dangerous wildlife (in my area it’s coyotes, in others it’s mtn. lions etc…). And there’s always the a-hole human factor to consider as well.
