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Table 2 Adjusted odds ratio (OR) of the probability of gametocyte prevalence, using a multivariate random effect logistic model for untreated and SP-treated children separately.

From: Plasmodium falciparum gametocyte carriage in asymptomatic children in western Kenya

Risk factors for gametocytaemia Adjusted OR (95% CI)
   No treatment Treatment with SP
Day of follow-up Day 7 1.48 (0.62 – 3.56)¥ 1.77 (0.93–3.34)¥
  Day 14 1 (ref) 1 (ref)
Age <5 years 6.34 (1.15–34.90) 5.38 (1.91–15.17)
  5–9 years 3.07 (0.98–9.55)¥ 3.22 (1.19–8.72)
  10–16 years 1 (ref) 1 (ref)
Asexual parasite density at enrolment Per 100 parasites/μl 1.05 (1.00–1.11) 1.01 (1.00–1.01)
Gametocyte prevalence at enrolment Present 3.35 (1.22–9.18) 4.12 (2.11–8.02)
  Absent 1 (ref) 1 (ref)
SP treatment outcome R2/3 resistance - 3.40 (1.61–7.19)
  Rl resistance - 1.06 (0.45–2.47)¥
  Adequate response - 1 (ref)
  1. Adjusted = adjusted for all other variables in the model, OR = odds ratio, CI = confidence interval, ref = reference group, ¥ = not statistically significant, - = not applicable. A GEE model was used to allow for correlation between observations from the same individuals. Children reporting the use of antimalarial drugs prior to enrolment were excluded from these analyses.