Table 2 Proportion of positive test results across all parasites by United States Census Bureau regions
Parasite | Midwest | Northeast | South | West | ||||
|---|---|---|---|---|---|---|---|---|
Centrifugation (%) (95% CI) | Coproantigen (%) (95% CI) | Centrifugation (%) (95% CI) | Coproantigen (%) (95% CI) | Centrifugation (%) (95% CI) | Coproantigen (%) (95% CI) | Centrifugation (%) (95% CI) | Coproantigen (%) (95% CI) | |
Ascarid | 6.2 (5.8–6.5) | 8.2 (7.8–8.6) | 5.8 (5.6–6.1) | 8.0 (7.7–8.2) | 3.9 (3.6–4.2) | 5.2 (4.9–5.6) | 1.4 (1.2–1.6) | 2.0 (1.8–2.2) |
Cystoisospora | 1.8 (1.6–2.0) | – | 1.8 (1.7–1.9) | – | 2.2 (1.9–2.4) | – | 2.2 (2.0–2.5) | – |
Giardia | 2.0 (1.8–2.2) | 7.5 (7.1–7.9) | 1.4 (1.3–1.5) | 6.6 (6.4–6.9) | 1.7 (1.5–1.8) | 5.9 (5.5–6.2) | 2.0 (1.8–2.2) | 6.1 (5.8–6.4) |
Tapeworm | 0.7 (0.6–0.8) | – | 0.7 (0.6–0.8) | – | 1.1 (1.0–1.3) | – | 1.5 (1.3–1.7) | – |
Hookworm | 0.5 (0.4–0.6) | 1.0 (0.8–1.1) | 0.4 (0.4–0.5) | 0.9 (0.8–1.0) | 1.1 (0.9–1.3) | 1.7 (1.5–1.9) | 0.1 (< 0.1–0.1) | 0.4 (0.3–0.5) |
Lungworm | 0.3 (0.3–0.4) | – | 0.4 (0.4–0.5) | – | 0.1 (0.1–0.2) | – | < 0.1 (< 0.1–0.1) | – |
Whipworm | < 0.1(< 0.1–0.1) | 0.2 (0.1–0.2) | < 0.1 (< 0.1–< 0.1) | 0.1 (0.1–0.2) | 0.1 (0.1–0.2) | 0.3 (0.2–0.4) | < 0.1 (< 0.1–< 0.1) | 0.1 (0.1–0.2) |