Table 3. Translation of prevalence thresholds from urine filtration (UF) into reagent strip (RS) for the diagnosis of S. haematobium for sampling schemes varying from one to five urine samples over consecutive days when traces were considered either positive or negative.
RS | UF (%) | 1 day | 2 days | 3 days | 4 days | 5 days |
---|---|---|---|---|---|---|
Traces + |
10 | 17.6 (13.4–21.8) | 16.5 (10.7–22.3) | 19.2 (12.6–25.8) | 19.4 (15.9–22.9) | 21.4 (14.4–28.4) |
25 | 35.0 (31.6–38.5) | 31.3 (25.7–36.8) | 32.1 (27.8–36.5) | 32.9 (29.2–36.6) | 34.2 (28.1–40.3) | |
50 | 57.7 (55.2–60.3) | 54.8 (51.4–58.3) | 54.2 (50.5–57.9) | 55.6 (53.3–57.9) | 56.2 (51.8–60.5) | |
Traces - |
10 | 11.2 (9.0–13.3) | 8.5 (7.2–9.8) | 8.9 (6.9–11.0) | 9.1 (6.9–11.3) | 11.7 (7.7–15.6) |
25 | 25.7 (23.1–28.4) | 21.5 (19.7–23.3) | 21.4 (19.1–23.3) | 22.7 (20.1–25.4) | 24.0 (19.7–28.3) | |
50 | 48.6 (46.6–50.6) | 46.0 (44.4–47.6) | 45.8 (449–47.6) | 46.9 (44.5–49.3) | 48.4 (45.5–51.3) |