Application of Cox Proportional Hazards Model in Case of Tuberculosis Patients in Selected Addis Ababa Health Centres, Ethiopia

Table 4

Results of the univariable proportional hazards Cox regression model of TB patients DOTS in six randomly selected AA health centers.

Analysis of maximum likelihood estimates
Covariates	DF	Parameter estimate	Standard error	−2LL	Lik. ratio 𝑃 value	Score 𝑃 value	Wald 𝑃 value	Hazard ratio
Gender	1	−0.00878	0.19526	1382.970	0.9641	0.9641	0.9641	0.991
Age	1	0.01626	0.00608	1376.244	0.0095	0.0072	0.0074	1.016
Weight	1	−0.00859	0.00772	1381.761	0.2711	0.2665	0.2659	0.991
Smear result	1	−0.31097	0.24441	1381.251	0.1896	0.2012	0.2033	0.733
TBC	1	−0.70235	0.22993	1374.782	0.0042	0.0018	0.0023	0.495
TTB cat. II	1	0.26331	0.26657	1381.039	0.3805	0.3944	0.3233	1.301
TTB cat. III	1	0.36374	0.26882				0.1760	1.439
HIV	1	0.98580	0.19524	1358.373	<0.0001	<0.0001	<0.0001	2.680
The value of −2LL for the null model is 1382.972