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Table 3 Test of proportional hazard assumption

From: Predictors of time to relapse in amphetamine-type substance users in the matrix treatment program in Iran: a Cox proportional hazard model application

Variable rho chi2 df prob > chi2
The Matrix treatment program (in sessions) 0.05 0.61 1 0. 44
Casual sex −0.07 0.33 1 0.57
Criminal offences 0.15 1.46 1 0.23
Duration of amphetamines dependence (in years) 0.01 0.00 1 0.96
Family support 0.01 0.00 1 0.95
Global test   1.96 5 0.86