Fig. 4

Mortality and key glycemic characteristics of each BMI group, conditional on diabetes status. Diabetes status modulated the relationship of BMI and glycemic outcomes and mortality. For diabetic patients, higher BMI was associated with lower average glucose (a), lower rate of hypoglycemia (c) and lower glucose variability (d). The null-hypothesis of no association of BMI with mortality for the diabetic group on the pooled dataset was not rejected at 5% significance level (b), although it was rejected when considering the MIMIC-III dataset only