Environmental contamination with Toxocara eggs: a quantitative approach to estimate the relative contributions of dogs, cats and foxes, and to assess the efficacy of advised interventions in dogs

Table 4 Estimated contribution of household dogs under different simulated deworming regimens and compliance rates

	Deworming frequency (times/year)
	2×	4×	6×	12×
Baseline compliance	21.0 %	17.5 %	Unknown	Unknown
Baseline contribution	39.1 %	39.1 %	39.1 %	39.1 %
Simulated compliance
30 %	37.8 (36.6–38.5)%	35.8 (32.9–37.6)%	33.7 (29.0–36.7)%	27.8 (18.0–34.4)%
50 %	36.3 (33.9–37.9)%	33.0 (27.7–36.5)%	29.7 (21.5–35.0)%	19.9 (3.3–30.9)%
70 %	35.0 (31.4–37.3)%	30.4 (22.8–35.5)%	25.7 (14.0–33.3)%	12.0 (0.0–27.5)%
90 %	33.7 (29.0–36.7)%	27.7 (17.7–34.2)%	21.9 (6.7–31.7)%	4.1 (0.0–24.3)%

The estimated percent contribution (95 % CI) of household dogs to the overall daily Toxocara egg output under different simulated deworming regimens and compliance rates. Baseline compliance refers to the observed compliance rates according to Nijsse et al. [9]