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Table 2 Smear positivity rate and incidence of malaria and non-malaria fever over time

From: Use of the slide positivity rate to estimate changes in malaria incidence in a cohort of Ugandan children

Year

Months

Total BS*

Positive BS*

Person-years

SPR

Incidence of malaria

Incidence of non-malaria fevers

2005

Jan-Feb

132

67

34.5

50.80%

1.94

1.88

 

Mar-Apr

179

51

55.7

28.50%

0.92

2.3

 

May-Jun

304

81

62.9

26.60%

1.29

3.54

 

Jul-Aug

208

50

65.5

24.00%

0.76

2.41

 

Sept-Oct

164

29

65.9

17.70%

0.44

2.05

 

Nov-Dec

146

48

64.7

32.90%

0.74

1.52

2006

Jan-Feb

154

63

58.8

40.90%

1.07

1.55

 

Mar-Apr

165

55

58

33.30%

0.95

1.9

 

May-Jun

260

95

57.2

36.50%

1.66

2.88

 

Jul-Aug

133

26

57.9

19.50%

0.45

1.85

 

Sept-Oct

104

19

57.9

18.30%

0.33

1.47

 

Nov-Dec

121

44

57.7

36.40%

0.76

1.33

2007

Jan-Feb

156

89

52.5

57.10%

1.7

1.28

 

Mar-Apr

100

25

53.2

25.00%

0.47

1.41

 

May-Jun

127

32

52.8

25.20%

0.61

1.8

 

Jul-Aug

101

13

53

12.90%

0.25

1.66

 

Sept-Oct

86

16

51.1

18.60%

0.31

1.37

 

Nov-Dec

80

21

49

26.30%

0.43

1.2

2008

Jan-Feb

74

27

46.4

36.50%

0.58

1.01

 

Mar-Apr

78

12

46.3

15.40%

0.26

1.43

 

May-Jun

100

32

45.5

32.00%

0.7

1.49

 

Jul-Aug

73

11

45.3

15.10%

0.24

1.37

 

Sept-Oct

62

8

43.4

12.90%

0.18

1.24

 

Nov-Dec

51

11

31

21.60%

0.35

1.29

  1. *blood smear
  2. per person-year