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

Parasites & Vectors

Table 2 Results of GLMMs with negative binomial error structure testing the effect of month on the number of total and embryonated infective Toxocara eggs per sandpit sample

	Term	Estimate	Std. Error	z-value	P-value
Total number of Toxocara eggs	Intercept	-2.83	0.71	-3.99	< 0.001***
	January	3.83	0.81	4.73	< 0.001***
	February	4.23	0.80	5.26	< 0.001***
	March	2.47	0.82	3.01	0.003**
	April	2.89	0.82	3.53	< 0.001***
	May	2.44	0.83	2.96	0.003**
	June	3.04	0.82	3.70	< 0.001***
	July	1.30	0.86	1.52	0.128
	August	1.49	0.85	1.74	0.082
	October	2.04	0.83	2.46	0.014*
	November	0.92	0.88	1.05	0.294
	December	2.17	0.84	2.60	0.009**
Number of embryonated infective Toxocara eggs	Intercept	-4.06	1.18	-3.43	< 0.001***
	January	3.74	1.32	2.83	0.005**
	February	4.89	1.32	3.71	< 0.001***
	March	1.90	1.37	1.39	0.164
	April	3.27	1.36	2.41	0.016*
	May	0.57	1.49	0.38	0.704
	June	2.04	1.38	1.47	0.141
	July	0.60	1.49	0.40	0.687
	August	0.71	1.48	0.48	0.631
	October	-0.30	1.68	-0.18	0.858
	November	-0.07	1.64	-0.04	0.965
	December	2.36	1.35	1.75	0.081

*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