Figure 2

Box- and whiskerplot of copeptin levels in malaria patients with a normal serum sodium concentration on admission (n = 105) and in patients with mild hyponatraemia (n = 68) and moderate-to-severe (labelled as "severe") hyponatraemia (n = 31) on admission. The box indicates the lower and upper quartiles and the central line represents the median; the end of the whiskers reflect the 2.5th en 97.5th percentile of copeptin in malaria patients.