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Table 4 Relations between Plasmodium infection and fever, anaemia and splenomegaly in the Taabo HDSS, stratified by year of survey

From: Epidemiology of malaria in the Taabo health and demographic surveillance system, south-central Côte d’Ivoire

Thick film

2010

2011

Fever −

Fever +

Fever −

Fever +

Positive

427

81

584

106

Negative

521

66

445

52

Prevalence

45.0 %

55.1 %

56.8 %

67.1 %

OR

1.00

1.49 (1.05–2.12)

1.00

1.55 (1.09–2.22)

p-value = 0.023

p-value = 0.014

Thick film

Anaemia −

Anaemia +

Anaemia −

Anaemia +

Positive

228

279

414

280

Negative

342

238

336

166

Prevalence

40.0 %

54.0 %

55.2 %

62.8 %

OR

1.00

1.75 (1.38–2.23)

1

1.36 (1.07–1.74)

p-value < 0.001

p-value = 0.010

Thick film

Hackett class

Hackett class

Class = 1

Class > 1

Class = 1

Class > 1

Positive

405

94

567

118

Negative

529

46

495

24

Prevalence

43.4 %

67.1 %

53.4 %

83.1 %

OR

1.00

2.67 (1.84–3.91)

1.00

4.29 (2.77–6.91)

p-value < 0.001

p-value < 0.001

  1. OR odds ratio