Table 2. Mortality prediction model—using maximum likelihood estimation logistic regression.

Variables (at admission)	Coefficient	SE *	OR ₸	95% CI ³	p	Point values
Previous length of stay ≥7 days	0.601	0.261	1.82	1.09–3.04	0.021	6
Health-care related infection	1.093	0.289	2.98	1.69–5.26	<0.001	11
Metastatic cancer	0.869	0.293	2.38	1.34–4.23	0.003	9
Immunosuppression	0.609	0.288	1.84	1.05–3.24	0.035	6
Glasgow comma scale ≤12	1,030	0.398	2.80	1.28–6.11	0.010	10
NIV 1	1.353	0.266	3.87	2.30–6.52	<0.001	14
Platelets ≤50000/mcL	0.878	0.412	2.41	1.07–5.39	0.033	9
Urea ≥0.6 g/L	1.020	0.263	2.77	1.66–4.64	<0.001	10
Bilirubin ≥4 mg/dL	0.940	0.370	2.56	1.24–5.29	0.011	9
Constant	-4.122	0.358			<0.001

* SE: Standard Error

^₸ OR: Odds Ratio

³ CI: Confidence Interval

¹ NIV: Non-invasive ventilation