Seasonal variation in the prevalence of Toxocara eggs on children’s playgrounds in the city of Hanover, Germany

Parasites & Vectors

Table 1 Results of GLMMs with binomial error structure testing monthly differences in contamination rates with total and embryonated infective Toxocara eggs in playground sandpits

	Term	Estimate	Std. Error	z-value	P-value
Total contamination with Toxocara eggs	Intercept	-2.70	0.60	-4.49	< 0.001***
	January	2.09	0.68	3.09	0.002**
	February	2.34	0.67	3.49	< 0.001***
	March	1.75	0.68	2.56	0.01*
	April	1.96	0.68	2.89	0.004**
	May	1.64	0.69	2.38	0.017*
	June	2.16	0.67	3.20	0.001**
	July	0.95	0.73	1.31	0.190
	August	1.26	0.71	1.79	0.074
	October	1.26	0.71	1.79	0.074
	November	0.00	0.85	0.00	0.999
	December	0.56	0.76	0.74	0.462
Contamination with embryonated infective Toxocara eggs	Intercept	-3.81	1.01	-3.77	< 0.001***
	January	2.28	1.08	2.10	0.036*
	February	2.68	1.07	2.51	0.012*
	March	1.46	1.14	1.28	0.201
	April	1.70	1.12	1.53	0.127
	May	0.72	1.24	0.58	0.565
	June	1.14	1.17	0.97	0.330
	July	0.00	1.43	0.00	1.000
	August	0.72	1.24	0.58	0.565
	October	0.00	1.43	0.00	1.000
	November	0.00	1.43	0.00	1.000
	December	1.46	1.14	1.28	0.201

*P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001
September, the month with the lowest contamination rate, was chosen as reference. Asterisks indicate statistically significant differences

ISSN: 1756-3305