TABLE 2.

Significantly correlated mutations of gp41 and Rev with the novel mutation E57A_rev

E57Arev-correlated mutation(s)	Frequency (no. of positive patients [%])a	Covariation frequency (no. [%])b	Phi	P
L54Mgp41	38 (43.2)	10 (76.9)	0.24	0.03
Q40Hgp41 L54Mgp41	7 (7.9)	3 (23.0)	0.24	0.04
N86Srev	46 (52.3)	10 (76.9)	0.23	0.03

^aThe frequency was determined in isolates from 88 ENF-treated patients. The E57A_rev mutation was present in 13 patients (14.8%).

^bPercentages were calculated in patients positive for the E57A_rev mutation.