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Table 1 Number of individuals/villages participating in different surveillances

From: Active case surveillance, passive case surveillance and asymptomatic malaria parasite screening illustrate different age distribution, spatial clustering and seasonality in western Kenya

Surveillance   Iguhu Emutete Mbale Total
Demographic information obtained§ Individual 17,190 21,023 18,813 57,026
No. households 4,803 5,548 4,712 15,063
No. villages 20 24 22 66
Active case surveillance population† Individuals 1,754 2,320 2,674 6,748
Female 858 1,302 1,484 3,644
Cases detected 268 135 74 477
Passive cases surveillance Cases detected 341 271 690 1,302
Asymptomatic parasite screening population‡ Early season 1,898 1,826 1,608 5,332
Slide positive 90 137 45 272
Peak season 1,726 1,759 1,798 5,283
Slide positive 115 200 52 367
  1. §These are the base populations for passive case surveillance.
  2. †These were the final recruitments and drop-outs were excluded.
  3. ‡Participants without slide reading results were excluded.
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