Variable

2006 (N = 1717)

[n (%)]

2010 (N = 2155)

[n (%)]

2015 (N = 1915)

[n (%)]

$X_1^2$ , P (Trend)

$X_1^2$ , P (Depart.)

Fever (temp. ≥ 37.5)

71 (4.9)

77 (4.3)

44 (2.6)

11.8, 0.001

0.9, 0.331

Any malaria parasitaemia

580 (40.4)

590 (33.2)

451 (26.6)

67.3, <0.001

0.05, 0.822

High density malaria parasitaemia

151 (10.5)

56 (3.1)

71 (4.2)

54.0, <0.001

37.4, <0.001

Gametocytaemia

12 (0.8)

3 (0.2)

5 (0.3)

5.1, 0.023

4.4, 0.036

Anaemia (Hb <8.0 g/dl)

172 (12.0)

76 (4.3)

151 (8.9)

7.7, <0.006

57.6, <0.001