Figure 1. Scatterplot of zinc concentrations during four weeks after admission (normal limits 9–18 mmol/l).

[T-Test, 2-sided, significance level a<0.05; P-values (b=baseline, w=week) b:w1=0.018, b:w3=0.004, b:w4<0.001, w2:w3<0.001, w2:w4<0.001, w3:w4=0.004]