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Table 2 Impact of the study intervention on G. duodenalis infection

From: Giardia duodenalis infection in the context of a community-based deworming and water, sanitation and hygiene trial in Timor-Leste

Study time point Study arm n Infection prevalence
Prevalence (95% CI) Adjusted RRa (95% CI) P-value
Follow-up 1 Intervention 584 15.4 (8.8–22.3) 1.28 (0.77–2.14) 0.341
Control 689 10.2 (4.7–14.2)
Follow-up 2 Intervention 552 16.5 (11.8–20.8) 1.26 (0.83–1.94) 0.277
Control 624 11.2 (7.7–14.8)
Follow-up 3 Intervention 531 19.6 (12.5–24.4) 1.38 (0.91–2.10) 0.124
Control 609 11.7 (7.2–16.0)
Follow-up 4 Intervention 553 17.4 (12.9–21.6) 1.05 (0.72–1.54) 0.787
Control 623 14.0 (10.3–18.0)
  1. Notes: aAdjusted RR obtained from generalised linear mixed model, adjusted for age group and sex (fixed effects) and clustering at the community, household, and individual levels (random effects). The model included 1878 participants in 456 households in 18 clusters (those randomly allocated to intervention and control arms)
  2. Abbreviations: CI, confidence interval; RR, relative risk