Table 5. Multivariable analysis of predictors of excess mortality using Poisson regression.

Variable	Adjusted hazard ratio	95% CI		P-value
Year of follow-up: 2	0.35	0.22	0.54	<0.001
Year of follow-up: 3	0.12	0.05	0.29	<0.001
Year of follow-up: 4	0.04	0.00	0.25	0.001
Year of follow-up: 5a	0.04	0.00	0.65	0.02
Maleb	1.58	1.10	2.27	0.01
Indigenousc	1.56	1.05	2.31	0.03
Age group: 45–64d	1.68	1.04	2.73	0.03
Age group:> = 65d	3.40	2.02	5.72	<0.001
Charlson index 1–2e	3.82	1.90	7.69	<0.001
Charlson index> = 3e	11.98	6.05	23.74	<0.001
Severe Sepsisf	2.30	1.61	3.27	<0.001
Bacteraemicg	1.67	1.15	2.42	0.007

Reference categories – a. First year of follow up; b. Female. c. Non-Indigenous d. Age group 15-44 years. e. Charlson comorbidity index = 0; f. Non-severe sepsis patients; g. Non-bacteraemic patients.