GSTM1 and anemia: However, in patients with hypoglycaemia and/or anaemia in the acute phase, plasma glucose and Hb levels in the chronic phase were markedly higher than those in the acute phase (plasma glucose, 53.8 ± 3.4 mg/dL to 99.0 ± 10.3 mg/dL, P < 0.001; Hb, 10.6 ± 0.23 mg/dL to 11.7 ± 0.22 mg/dL, P < 0.001) (Table 4, right column).