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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