Pre-rainy season 2006

Pre-rainy season 2010

z

p-value

Number screened

1717

2155

Fever

42 (2.3%)

25 (1.2)

2.64

0.008

Any malaria parasitaemia

156 (9.0%)

156 (7.2)

2.05

0.040

High density malaria parasitaemia

50 (2.8%)

49 (2.3)

0.99

0.324

Gametocytaemia

14 (0.8%)

3 (0.14)

3.11

0.002

Anaemia (Hb < 8.0 g/dl)

135 (7.8%)

114 (5.3)

3.16

0.002

Mean parasite density (SD)

14,348 (25,313)

28 (7378)

0.001

Mean Hb (SD)

9.27 (1.29)

9.7 (1.3)

0.001