highly significantp < 0.01
Overdispersion was detected in the data through multiple tests:1) the Variance-to-Mean ratio was equal to 3.40; 2) the Goodness-of-fit tests indicated significant overdispersion in the Poisson model (Pearson χ2 = 955,349.9, df = 738,830, p < 0.01; Deviance = 635,868.1, df = 738,830, p = 1); 3) the Cameron-Trivedi test was highly significant (α̂ = 0.531, p < 0.01), confirming substantial overdispersion in the Poisson model.