a trend toward significanceP = 0.0743
In detail, the 159F (FC = 1.3 to Ni sofosbuvir) was present in 7/69 (10.1%) European sequences, in 8/137 (5.8%) sequences from USA and in 2/100 (2%) Asian sequences, showing a trend toward significance, P = 0.0743 (Fig. 1 ).