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Table 1 Plasmodium falciparum, Plasmodium vivax and splenomegaly prevalences in ITN and control villages during the pre-study malaria survey (December 1997)

From: The effect of insecticide-treated bed nets on the incidence and prevalence of malaria in children in an area of unstable seasonal transmission in western Myanmar

 

Intervention villages

Control villages

 

N

M.S.

Pf(%)

Pv(%)

Spleen (%)

N

M.S.

Pf(%)

Pv(%)

Spleen (%)

Dabhine

          

Pair 1

707

125

37 (30)

35 (28)

79 (63)

796

102

38 (37)

33 (32)

68 (67)

Pair 2

551

89

26 (29)

33 (37)

47 (53)

679

48

9 (19)

7 (15)

16 (34)

Pair 3

462

37

8 (22)

10 (27)

16 (42)

298

49

11 (22)

6 (12)

30 (61)

Pair 4

223

33

7 (21)

8 (24)

9 (28)

184

32

4 (13)

16 (50)

19 (59)

Pair 5

74

18

3 (17)

4 (22)

5 (28)

87

15

8 (53)

1 (7)

6 (40)

Subtotal

2017

302

81 (27)

90 (30)

156 (52)

2044

246

70 (28)

63 (26)

139 (57)

Myothugyi

          

Pair 6

78

16

3 (19)

1 (6)

6 (38)

47

15

3 (20)

0 (0)

1 (7)

Pair 7

714

96

1 (1)

0 (0)

15 (16)

819

105

0 (0)

0 (0)

30 (29)

Pair 8

492

54

0 (0)

1 (2)

13 (24)

602

70

2 (3)

1 (1)

6 (9)

Pair 9

659

57

4 (7)

4 (7)

7 (12)

650

82

1 (1)

0 (0)

1 (1)

Pair 10

153

25

10 (40)

2 (8)

8 (32)

120

20

7 (35)

1 (5)

4 (20)

Subtotal

2096

248

18 (7)

8 (3)

49 (19)

2238

292

13 (4)

2 (1)

42(14)

Total

4113

550

99 (18)

98 (18)

205 (37)

4282

538

83 (15)

65 (12)

181 (34)

  1. N = number of children < 10 yrs (data from local authorities).
  2. MS = number of children of whom a malaria smear was taken.
  3. Pf = P. falciparum prevalence (including mixed infections), Pv = P. vivax prevalence (including mixed infections).