Selective mutism explained by someone who experienced it as a child

Your number may well be correct if you are measuring the life expectancy of an infant diagnosed with the disease in 2018. You are 100% correct that my number was a bit out of date. It’s been a decade or so since my professional or personal life focused on this disease. The CF Foundation measures life expectancy at 37 years for adults in the US with Cystic Fibrosis.