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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

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

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