Research Article
Application of Cox Proportional Hazards Model in Case of Tuberculosis Patients in Selected Addis Ababa Health Centres, Ethiopia
Table 7
Results of the multivariable proportional hazards Cox regression model containing the main and interaction effect.
| (a) |
| | Testing global null hypothesis: bETA = 0 | | Test | Chi-Square | DF | Pr > ChiSq |
| | Likelihood ratio | 42.6252 | 4 | <0.0001 | | Score | 45.1009 | 4 | <0.0001 | | Wald | 40.3081 | 4 | <0.0001 |
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| (b) |
| | Analysis of maximum likelihood estimates | | Covariates | DF | Parameter estimate | Standard error | Chi-Square | Pr > ChiSq | Hazard ratio | 95% HR Conf. limit |
| | Age | 1 | 0.02745 | 0.00760 | 13.0603 | 0.0003 | 1.028 | 1.013 | 1.043 | | TBC | 1 | −0.54298 | 0.23231 | 5.4629 | 0.0194 | 0.581 | 0.369 | 0.916 | | HIV | 1 | 2.29131 | 0.50215 | 20.8209 | <0.0001 | 9.888 | 3.695 | 26.457 | | Age * HIV | 1 | −0.04028 | 0.01354 | 8.8468 | 0.0029 | 0.961 | 0.935 | 0.986 | | The value of for the model is 1340.347 |
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