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Table 5 Number (%) of dogs positive for intestinal parasites by coproantigen immunoassay or centrifugal flotation according to owner-reported current use of a heartworm/intestinal parasite control medication

From: Detection of gastrointestinal parasitism at recreational canine sites in the USA: the DOGPARCS study

Demographic characteristic Nematodes/Giardia Nematodes Hookworms Whipworms Ascarids Giardia
Dogs on medication: Yes (n = 2069) 404 (19.5) 155 (7.5) 125 (6.0) 31 (1.5) 11 (0.5) 276 (13.3)
95% CI 17.9–21.3 6.4–8.7 5.1–7.2 1.1–2.1 0.3–1.0 11.9–14.9
Dogs on medication: No (n = 885) 190 (21.5) 101 (11.4) 84 (9.5) 25 (2.8) 6 (0.7) 106 (12.0)
95% CI 18.9–24.3 9.5–13.7 7.7–11.6 1.9–4.2 0.3–1.5 10.0–14.3
Medication status unknown (n = 52) 15 (28.9) 7 (13.5) 5 (9.6) 2 (3.9) 0 (0.0) 9 (17.3)
95% CI 18.3–42.4 6.4–25.6 3.8–21.0 0.3–13.7 0.0–8.2 9.2–30.0
  1. Note: Percentages are based on the number of positive dogs in that demographic category as the numerator and total of dogs reported to be in that category as denominator
  2. Abbreviation: CI, confidence interval