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Table 3 Asymptomatic malaria infection by age groups and strata as detected by malaria rapid diagnostic test and microscopy

From: Prevalence of asymptomatic malaria, submicroscopic parasitaemia and anaemia in Korogwe District, north-eastern Tanzania

Variable

n

RDT

p-value

Microscopy

p-value

Positive (%)

Negative (%)

Positive (%)

Negative (%)

Age groups (years)

 0–4

237

40 (16.9)

197 (83.1)

 

6 (2.53)

231 (97.5)

 

 5–9

145

34 (23.6)

111 (76.6)

< 0.01

10 (6.9)

135 (93.1)

< 0.01

 10–14

118

38 (32.2)

80 (67.8)

 

13 (11.0)

105 (89.0)

 

 15–19

65

18 (27.7)

47 (72.3)

 

4 (6.2)

61 (94.0)

 

Strata

 Highland village

280

63 (22.5)

217 (77.5)

 

20 (7.1)

260 (93.0)

 

 Lowland village

285

67 (23.5)

218 (76.5)

0.78

13 (4.6)

272 (95.4)

0.19

Total

565

130 (23.0)

435 (77.0)

 

33 (5.8)

532 (94.2)

 
  1. p < 0.01 the proportion of asymptomatic malaria significantly high in the age group of 5–9 years by both RDT and microscopy compared to other age groups (in bold)