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Table 2 Chi-square test results of fitting model, 2015–2018

From: The burden of hand, foot, and mouth disease among children under different vaccination scenarios in China: a dynamic modelling study

  2015 2016 2017 2018
Degrees of freedom 3 3 3 3
Accepting value at 5% significant level 7.815 7.815 7.815 7.815
χ2 0.490 4.235 0.928 1.53
P value > 0.05 > 0.05 > 0.05 > 0.05