Table 1.

Patterns of Protease Mutations at Positions 30, 88, and 90 in 1623 Viruses from 1550 Persons

D30	N88	L90	Number	Percentage of total with mutation at positions 30, 88, 90	Percentage with additional PI resistance mutation
-	-	M	1034	63.7	71
N	D	-	255	15.7	18
N	-	-	126	8.7	20
-	S	-	63	3.9	73
N	D	M	55	3.4	71
-	D	M	20	1.2	90
-	S	M	16	1.0	56
-	D	-	14	0.9	72
N	-	M	6	0.4	17
-	T	-	6	0.4	83
-	T	M	4	0.2	100
-	G	M	4	0.3	75
N	S	-	3	0.2	0
N	T	-	1	0.1	100