THE LANCET Peer-reviewed/Modelling/People A new modelling study estimates 8.4 million individuals were living with Type 1 Diabetes (T1D) globally in 2021 with an additional 3.7 million ‘missing people’ who would be alive with T1D if their mortality matched general population rates. The model predicts between 13.5 – 17.4 million people will be living with T1D...