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Table 3 Incidence rate of malaria disease and protective efficacy after 16 weeks of follow up per treatment group and age category

From: Impact of intermittent preventive treatment with sulphadoxine-pyrimethamine targeting the transmission season on the incidence of clinical malaria in children in Mali

  <5 years 5–10 years All
  sIPT- sIPT + sIPT- sIPT + sIPT- sIPT +
Number of malaria episodes 86 30 59 25 145 55
Person-days of follow up 4797 5474 6207 7875 11004 13349
Incidence rate malaria disease per 1000 person-days of follow up 17.9 5.5 9.5 3.2 13.2 4.1
PE in % (95% CI) Reference group 68.7 (57.4–77.1) Reference group 66.6 (46.7–79.1) Reference group 68.7 (57.4 – 76.1)
Age adjusted PE in % (95% CI) Reference group 69.4 (53.6–79.8) Reference group 63.4 (41.5–77.1) Reference group 67.5 (55.3–76.6)
  1. sIPT - = control group
  2. sIPT + = treatment group
  3. PE = Protective efficacy