Table 4

Effect of integrated school based de-worming and prompt malaria treatment on helminths -Plasmodium co-infections among 420 primary schoolchildren successfully followed up over 33 months in Burma Valley farming area, Zimbabwe

Co-infection combinations

Prevalence (95%CI)

Baseline

6 months

12 months

33 months

Overall (%) reduction


Not infected

21.4 (17.6-26.7)

65.2 (60.5-69.8)

70.0 (65.4-74.3)

49.0 (44.2-53.9)

-

Schistosomiasis

31.7 (27.2-36.4)

5.5 (3.5-8.1)

11.0 (8.1-14.3)

27.6 (23.4-32.2)

3.9

STHs

5.7 (3.7-8.4)

5.5 (3.5-8.1)

3.6 (2.0-5.8)

4.5 (2.7-7.0)

6.3

P. f

8.1 (5.7-11.1)

10.5 (7.7-13.8)

9.0 (6.5-12.2)

4.0 (2.4-6.4)

40.9

Schisto + STHs

12.9 (9.8-16.4)

3.6 (2.0-5.8)

3.8 (2.2-6.1)

10.7 (7.9-14.1)

17.1

P. f + schisto

13.1 (10.0-16.7)

1.2 (0.4-2.8)

1.9 (0.8-3.7)

2.6 (1.3-4.6)

73.7

P. f + STHs

1.4 (0.5-3.1)

1.0 (0.3-2.4)

0.2 (0.0-1.3)

0.5 (0.1-1.7)

63.6

P. f + STHs + schisto

5.7 (3.7-8.4)

0.2 (0.0-1.3)

0.5 (0.0-1.7)

1.0 (0.3-2.4)

76.4


The rural area was left out in this analysis because there were no mixed infections observed over the period of the study.

Key: Schisto = schistosomiasis, P. f = P. falciparum, STHs = soil transmitted helminths

Midzi et al. BMC International Health and Human Rights 2011 11:9   doi:10.1186/1472-698X-11-9

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