Once a year school-based deworming with praziquantel and albendazole combination may not be adequate for control of urogenital schistosomiasis and hookworm infection in Matuga District, Kwale County, Kenya

Table 4 Geometric and arithmetic means of STH infections at baseline and follow-up surveys in Mwaluphamba Location, Mutuga District, Kwale County

	Sep 2009	Oct 2010	Mar 2011	Jun 2012	P-value
Geometric mean epg ^a (95% CI)
A. lumbricoides*	18.3 (14-23.9)	18.1 (9.2-35.7)	-	N/A	ND
Hookworm	98.8 (84.5-115.5)	80.8 (69.8-93.6)	102.8 (88.7-119.2)	121.9 (92.2-161.1)	0.6171
T. trichiura	27.4 (20.4-36.6)	25.1 (9.8-64)	31.8 (15-67.7)	28.8 (10.3-81)	0.3315
Arithmetric mean epg ^a (95% CI)
A. lumbricoides	21.5 (14.9-28)	24 (2.7-45.3)	-	N/A	ND
Hookworm	269.5 (180.7-358.3)	221 (176.9-265)	277.2 (219.2-335.2)	291.2 (204.7-377.6)	0.5564
T. trichiura	33.3 (24.1-42.4)	31.2 (4.1-58.3)	49.5 (-3.7-102.7)	42 (4-80)	0.3437

^aFor infected individuals only.
CI: confidence interval.
*There was only one case of Ascaris lumbricoides in 2012. ND: Not Done, because of few data points.

ISSN: 1756-3305