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Table 2 Number of individuals and households visited in each round and reported two-week fever incidence

From: Malaria risk and access to prevention and treatment in the paddies of the Kilombero Valley, Tanzania

  HH level Individual level
Round N Fever N Fever
   % n**   % n**
1 72 59 30 (/51) 390 13.9 41 (/293)
2 72 28 20 409 6.4 26
2b* 40 42 14 (/33) 209 8.7 17 (/195)
3 102 24 24 (/101) 584 4.7 32 (/596)
4 104 26 27 596 5.4 32
5 98 19 18 547 3.5 19 (/541)
6 87 29 26 489 5.5 27
Overall 575 29 158 (/545) 3224 6.1 189 (/3103)
  1. * additional sample to compensate for losses to follow-up, as explained in the text
  2. ** numbers in brackets denote the denominator excluding missing values