highly significantP < 0.001
Log of likelihood ratio contrasted by the χ 2 test demonstrated that the model was highly significant (χ 2 = 21.02; degrees of freedom [df] = 4; P < 0.001).
Log of likelihood ratio contrasted by the χ 2 test demonstrated that the model was highly significant (χ 2 = 21.02; degrees of freedom [df] = 4; P < 0.001).