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Table 1 Prevalence of G. duodenalis in the study population over time

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

  Overall 1–5 years 6–11 years 12–17 years 18–64 years 65+ years
n Prevalence (95% CI) N Prevalence (95% CI) N Prevalence (95% CI) N Prevalence (95% CI) N Prevalence (95% CI) n Prevalence (95% CI)
Baseline
 Intervention 710 14.5 (10.1–17.6) 131 23.7 (14.4–30.1) 157 25.5 (18.6–32.4) 65 13.9 (4.4–22.8) 306 6.9 (3.0–10.1) 51 3.9 (0–8.7)
 Control 888 12.3 (9.6–16.3) 127 29.9 (20.9–39.6) 175 19.4 (13.4–25.4) 118 12.7 (5.7–21.0) 395 5.1 (2.4–8.5) 73 4.1 (0–9.2)
Follow-up 1
 Intervention 584 15.4 (8.8–22.3) 128 30.5 (18.2–42.0) 133 24.1 (15.1–32.0) 44 11.4 (1.0–22.6) 240 5.4 (1.8–8.9) 39 2.6 (0–7.5)
 Control 689 10.2 (4.7–14.2) 104 14.4 (5.5–23.1) 151 20.5 (11.2–26.9) 72 9.7 (1.6–16.9) 290 5.5 (2.1–8.9) 72 1.4 (0–4.1)
Follow-up 2
 Intervention 552 16.5 (11.8–20.8) 113 26.5 (17.9–35.0) 134 19.4 (12.7–26.1) 51 9.8 (1.6–18.0) 210 12.9 (6.5–18.3) 44 6.8 (0–14.6)
 Control 624 11.2 (7.7–14.8) 98 25.5 (16.5–34.6) 147 12.9 (7.5–18.4) 62 19.4 (9.5–29.2) 253 4.3 (1.2–7.2) 64 4.7 (0–9.9)
Follow-up 3
 Intervention 531 19.6 (12.5–24.4) 119 32.8 (18.9–42.3) 123 26.0 (18.3–33.8) 44 22.7 (9.8–36.2) 194 10.8 (4.1–16.3) 51 3.9 (0–9.2)
 Control 609 11.7 (7.2–16.0) 92 28.3 (16.1–40.6) 131 16.8 (10.4–23.2) 66 10.6 (2.0–18.5) 256 5.9 (2.0–1.06) 64 1.6 (0–4.6)
Follow-up 4
 Intervention 553 17.4 (12.9–21.6) 105 34.3 (25.2–43.4) 136 26.5 (19.1–33.9) 68 14.7 (6.3–23.1) 197 6.6 (3.1–10.1) 47 2.1 (0–7.0)
 Control 623 14.0 (10.3–18.0) 84 38.1 (27.7–48.5) 135 19.3 (12.6–25.9) 65 16.9 (7.8–26.0) 261 5.4 (2.6–8.1) 78 5.1 (0–11.0)
  1. Note: The table includes participants in the 18 communities that were randomly allocated
  2. Abbreviation: CI, confidence interval