Study Design and Participants
Analyses are based on multi-center cross-sectional observational data of participants from the
T1D Exchange (T1DX) registry (US) and the German/Austrian Diabetes Patienten
Verlaufsdokumentation (DPV) registry who were ≥60 years of age at enrollment and seen in
2011 to 2012. A 1% error margin (ie expressed as 99% confidence intervals of difference) was
used due to the large number of participants.