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Table 6 Mean Multiplicity of infection across different age groups, altitude, locality, transmission season, reported antimalarial usage and level of parasitaemia in individuals with uncomplicated malaria and asymptomatic parasitaemia

From: Plasmodium falciparum merozoite surface protein 1 block 2 gene polymorphism in field isolates along the slope of mount Cameroon: a cross – sectional study

Parameter

Uncomplicated malaria

Asymptomatic parasitaemia

P value

n

Mean ± SD

n

Mean ± SD

Age group (years)

<5

17

3.12 ± 1.54

17

1.82 ± 0.81

0.009

5 – 9

16

2.37 ± 1.15

28

2.04 ± 1.04

0.332

10 -14

11

2.18 ± 1.17

7

2.86 ± 1.07b

0.224

≥15

36

2.50 ± 0.94

9

1.56 ± 0.73

0.007

P value

 

0.142

 

0.047

 

Altitude

Low

18

3.00 ± 1.33

11

1.82 ± 0.87

0.016

Intermediate

43

2.33 ± 1.11

33

1.88 ± 1.08

0.082

High

20

2.65 ± 1.09

17

2.35 ± 0.79

0.457

P value

 

0.112

 

0.218

 

Locality

Rural

14

3.00 ± 1.18

19

2.37 ± 0.76

0.069

Semi-rural

42

2.57 ± 1.35

38

1.87 ± 1.04

0.011

Semi-urban

25

2.28 ± 0.74

4

1.50 ± 1.00

0.084

P value

 

0.184

 

0.111

 

Season

Transitiona

13

2.85 ± 1.21

17

2.29 ± 0.85

0.193

Rainy

68

2.50 ± 1.17

44

1.89 ± 1.02

0.005

P value

 

0.333

 

0.148

 

Reported Antimalarial use

Yes

18

2.00 ± 0.84

3

2.33 ± 0.85

0.787

No

21

2.86 ± 1.28

42

2.17 ± 1.02

0.023

P value

 

0.020

 

0.790

 

Level of parasitaemia (parasites/μl)

<10, 000

32

2.75 ± 1.22

47

2.06 ± 0.99

0.007

≥10, 000

49

2.43 ± 1.14

14

1.79 ± 0.98

0.046

P value

 

0.230

 

0.357

 
  1. Boldface values indicate significant p values
  2. aTransition from rainy to dry season
  3. bSignificantly higher (p = 0.039) than the corresponding values for individuals ≥ 15 years old