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Table 3 Amino acids levels according to severity of depression among the treated group

From: Changes in tryptophan and phenylalanine in chronic HCV patients treated with direct acting antiviral (sofosbuvir)

Variable Mild/moderate (n = 4) Severe (n = 4) Very severe (n = 32) KW test p
Mean ± SD Range Mean ± SD Range Mean ± SD Range
Tryptophan (μg/ml) 9.34 3.77 3.79–12.2 8.87 0.80 7.89–9.6 6.57 2.20 3.42–11.58 7.32 0.026 (S)
Phenylalanine (ng/ml) 2.09 0.02 2.07–2.13 2.34 0.17 2.12–2.55 2.52 0.28 2.11–2.99 11.4 0.003 (S)
  1. S significant