TABLE II. Frequency of trials according to the number of anopheline specimens captured by BG-Sentinel traps set at different heights and orientations of the entrance in the settlement of Mato Grosso, state of Rondônia, Brazil, 2007.

	Normal (40 cm)	Normal (150 cm)	Sideways (40 cm)	Sideways (150 cm)	Downwards (40 cm)	Downwards (150 cm)
Class	n (%)	n (%)	n (%)	n (%)	n (%)	n (%)
0-2	12 (66.7)	15 (83.3)	12 (66.7)	9 (50)	9 (50)	9 (50)
3-5	2 (11.1)	1 (5.6)	2 (11.1)	5 (27.8)	2 (11.1)	3 (16.7)
6-8	3 (16.7)	1 (5.6)	3 (16.7)	2 (11.1)	1 (5.6)	1 (5.6)
9-11	0 (0)	0 (0)	1 (5.6)	0 (0)	0 (0)	2 (11.1)
12-14	0 (0)	0 (0)	-	1 (5.6)	2 (11.1)	2 (11.1)
15-17	1 (5.6)	0 (0)	-	0 (0)	0 (0)	0 (0)
18-20	-	0 (0)	-	1 (5.6)	1 (5.6)	0 (0)
21-23	-	1 (5.6)	-	-	0 (0)	0 (0)
24-26	-	-	-	-	0 (0)	0 (0)
27-42 a	-	-	-	-	1 (5.5)	0 (0)
43-58 a	-	-	-	-	2 (11.1)	1 (5.6)
Total	18 (100)	18 (100)	18 (100)	18 (100)	18 (100)	18 (100)

a : the interval was increased here due to the reduced number of anophelines captured in the intermediate classes.