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Table 2 Comparison of observed and expected Plasmodium species assemblages by different diagnostic techniques.

From: High sensitivity detection of Plasmodium species reveals positive correlations between infections of different species, shifts in age distribution and reduced local variation in Papua New Guinea

 

Light microscopy

LDR-FMA

Observed

Expected1

X2

Observed

Expected

X2

neg

1406

1453.2

1.5

683

605.0

10.1

Pf

660

620.4

2.5

704

736.1

1.4

Pv

276

247.7

3.2

350

335.2

0.6

Pm

84

59.3

10.3

45

93.4

25.1

Po

0

0.6

0.6

22

30.4

2.3

Pf+Pv

86

105.7

3.7

363

407.9

4.9

Pf+Pm

9

25.3

10.5

136

113.7

4.4

Pf+Po

0

0.2

0.2

27

37.0

2.7

Pv+Pm

5

10.1

2.6

26

51.8

12.8

Pv+Po

0

0.1

0.1

7

16.9

5.8

Pm+Po

0

0.0

0.0

1

4.7

2.9

Pf+Pv+Pm

1

4.3

2.5

99

63.0

20.6

Pf+Pv+Po

0

0.0

0.0

33

20.5

7.6

Pf+Pm+Po

0

0.0

0.0

8

5.7

0.9

Pv+Pm+Po

0

0.0

0.0

6

2.6

4.4

Pf+Pv+Pm+Po

0

0.0

0.0

17

3.2

60.4

  

Total:

37.9

 

Total:

167.0

   

p < 0.001

  

p < 0.001

  1. 1 Expected values calculated under multiple kind lottery model
  2. 2 X2 calculated as (Observed-Expected)2/Expected
  3. Pf = P. falciparum, Pv = P. vivax, Pm = P. malariae, Po = P. ovale
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Malaria Journal

ISSN: 1475-2875

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