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)

42 (2.4)

25 (1.2)

50 (2.6)

0.2, 0.637_a

12.8, <0.001

Any malaria parasitaemia

156 (9.1)

156 (7.2)

148 (7.7)

2.1, 0.145_b

2.5, 0.113

High density malaria parasitaemia

50 (2.9)

49 (2.3)

43 (2.2)

1.6, 0.203_c

0.5, 0.469

Gametocytaemia

14 (0.8)

3 (0.1)

7 (0.4)

4.1, 0.043_d

6.7, 0.010

Anaemia (Hb < 8.0 g/dl)

135 (7.9)

114 (5.3)

212 (11.1)

14.1, <0.001_e

32.1, <0.001