Fig. 4From: Retrospective analysis of insulin responses to standard dosed oral glucose tests (OGTs) via naso-gastric tubing towards definition of an objective cut-off valueMedian serum insulin concentration (solid line) of the cluster 1 classified as insulin sensitive during oral glucose test (OGT) with calculated 2.5 and 97.5% quantile (dashed lines). Calculated cut-off at 120 min is 110 µLU/mL (grey lines)Back to article page