Skip to main content

Table 1 Characteristics of cohort stratified by year of observation

From: Use of the slide positivity rate to estimate changes in malaria incidence in a cohort of Ugandan children

Characteristics Year of observation
  2005 2006 2007 2008
Number of children* 433 425 396 319
Person-years of follow-up 349 348 312 258
Mean age in years (SD) 6.80 (1.81) 7.11 (1.93) 7.19 (1.93) 7.19 (1.84)
ITN coverage 5.4% 64.4% 99.8% 100%
Total blood smears performed 1133 937 650 438
Positive blood smears 326 302 196 101
Malaria treatment given     
   AQ + SP 123 123 24 0
   AQ + AS 111 79 71 8
   AL 83 94 94 92
   Quinine 9 6 7 1
Slide positivity rate (SPR) 28.8% 32.2% 30.2% 23.1%
Incidence of malaria£ 0.93 0.87 0.63 0.39
Incidence of non-malaria fever£ 2.31 1.83 1.46 1.31
  1. *Number of children contributing at least one day of follow up to yearly analysis
  2. Proportion of observation days with ITN coverage
  3. AQ = amodiaquine; SP = sulfadoxine-pyrimethamine; AS = artesunate; AL = artemether-lumefantrine
  4. £per person-year