Impact of an Irrigation Dam on the Transmission and Diversity of Plasmodium falciparum in a Seasonal Malaria Transmission Area of Northern Ghana

Table 2

Population characteristics of selected samples.

Covariate		Gowrie/Vea (dam site); (n = 135); (%)	Soe (nondam site); (n = 153); (%)	Total; (n = 288); (%)	value
Season
Dry		69 (51.1)	65 (42.5)	134 (46.5)
Wet		66 (48.9)	88 (57.5)	154 (53.5)	0.18
Mean age (sd)		17.8 (13.3)	16.9 (15.1)	17.3 (14.3)	0.61
Bednet
No		46 (34.1)	28 (18.3)	74 (25.7)
Yes		89 (65.9)	125 (81.7)	214 (74.3)	0.003
Sex
F		67 (49.6)	89 (58.2)	156 (54.2)
M		68 (50.4)	64 (41.8)	132 (45.8)	0.18

Differences in mean age between communities were determined using Student’s t-test. Proportional differences between communities for season, sex, and bednet usage were determined using Chi-square test. (%) Numbers in brackets are percentages.