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