The Predictive Health Intelligence Environment database (representing 26 integrated healthcare delivery networks) was used to identify T2DM patients aged ≥ 65 years on basal insulin who switched to either Glar-300 or other basal insulins (insulin Glar-100, Det, or Deg) from March 1, 2015, to March 31, 2016. Here, INS is linked to type 2 diabetes mellitus.