Table 4 Proportion (%) of prozone for Paracheck-Pf according to different denominators, 95% binomial confidence intervals (CI) within brackets

Patients suspected of malaria

(1 sample per patient included)

7,543

100

Samples positive for P. falciparum

873

11.6

(10.86-12.32)

100

Samples scored as 4+ or 5 + (MoH semi-quantitative scale)

410

5.4

(4.93-5.97)

47.0

(43.61-50.34)

Samples with a high parasitaemia (parasite density ≥ 4%)

92

1.2

(0.98-14.9)

10,5

(8,58-12,77)

100

Number of samples available for prozone testing

76

-

-

-

Negative, faint or weak HRP-2 test lines *

29

0.5 ^†

(0.32-0.64)

4.0 ^†

(2.81-5.53)

38.0 ^†

(28.12-48.76)

Negative or faint HRP-2 test lines *

8

0.1 ^†

(0.06-0.24)

1.2 ^†

(0.55-2.10)

10.9 ^†

(5.34-19.08)

Negative HRP-2 test lines *

3

0.05 ^†

(0.01-0.14)

0.5 ^†

(0.12-1.17)

4.4 ^†

(1.20-10.76)