Table 3.

Univariate and multivariate logistic regression analysis of age as a risk factor with the categorization of the 1638 studied patients into age subgroups with intervals of every 10 years.

	OR	95% CI	P
Association with mortality in univariate logistic regression analysis
Age ≥ 40 years	4.26	1.337–13.573	0.014
Age ≥ 50 years	3.74	1.507–9.271	0.004
Age ≥ 60 years	3.48	1.743–6.962	< 0.001
Age ≥ 70 years	4.19	2.406–7.297	< 0.001
Age ≥ 80 years	4.93	3.197–7.616	< 0.001
Age ≥ 90 years	3.87	2.246–6.667	< 0.001
Association with mortality in multivariate logistic regression analysis
Age ≥ 40 years	1.604	0.262–9.811	0.609
Age ≥ 50 years	1.038	0.185–5.807	0.966
Age ≥ 60 years	0.801	0.222–2.889	0.735
Age ≥ 70 years	1.617	0.619–4.223	0.327
Age ≥ 80 years	3.380	1.887- 6.055	< 0.001
Age ≥ 90 years	1.803	1.021- 3.186	0.042

ICD-10 International Statistical Classification of Diseases and Related Health Problems, OR odds ratio, CI confidence interval, p probability value.

In this analysis only age, not the sepsis diagnosis was considered. Age over 80 years and (to a lesser degree) age over 90 years were independent death risk factors.