Similarly , there was no significant difference between the two groups in incidence of resistance at week 48 ( 4.0 % and 1.5 % ) , week 96 ( 5.3 % and 3.1 % ) , week 144 ( 10.0 % and 3.3 % , X2 = 1.23 ) , week 192 ( 11.6 % and 8.3 % ) , and week 240 ( 13.3 % and 11.1 % ) ( all P more than 0.05 ) .