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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