INS and type 2 diabetes mellitus: Participants who progressed to T2DM compared with those who did not progress had significantly higher median glucose concentrations (in mmol/L) at all times of the OGTT at HFDP diagnosis—fasting: 6.4 (IQR 5.7–7.2 versus 5.6 (IQR 4.9–5.9), p < 0.001; 1-hour: 11.0 (IQR 10.0–12.2) versus 9.8 (IQR 8.5–10.6), p < 0.001, and 2-hour glucose: 10.1 (8.6–11.1) versus 8.6 (8.1–9.3), p < 0.001)—and were more likely to be on either oral hypoglycemic (36.2% versus 20.0%, p = 0.007) or insulin therapy (41.0% versus 7.8%, p < 0.001) during HFDP (Tables 1 and 2).