Table 4. Binary logistic regression model with in-hospital mortality as the dependent factor.

Factor	Hazard ratio of in-hospital mortality	95% CI
Severe liver disease	8.1	3.9–16.8
Metastatic disease	3.6	2.7–4.7
AKI stage 3	3.0	2.4–3.7
AKI stage 2	2.4	2.0–2.9
Congestive cardiac failure	2.0	1.6–2.6
Pulmonary disease	1.5	1.2–1.9
Hospital acquired AKI	1.6	1.4–1.9
Age (per 5 yrs)	1.2	1.1–1.2

Variables with significant associations with mortality were tested; for AKI stage, stage 1 was taken as the reference category. Hospital acquired AKI was compared with community acquired AKI that was used as the reference category.