Figure 1.

Occurrence of dysglycemia by tertile of plasma selenium in men (a) and in women (b). Tertile 1: 0.18-1.00 μmol/L (median value = 0.90 μmol/L). Tertile 2:1.01-1.18 μmol/L (median value = 1.09 μmol/L). Tertile 3: 1.19-1.94 μmol/L (median value = 1.29 μmol/L). Black circle: Tertile 1; White square: Tertile 2; Grey tangle: Tertile 3.