Table 4.  Risk factors that are effective in predicting the need for mechanical ventilation and mortality of patients.

Risk factors	In-hospital mortality		6-month mortality		The need for MV
	RR (%95 Cl)	P-value	HR (%95 Cl)	P-value	RR (%95 Cl)	P-value
Age	1.02 (1.01–1.03)	0.001	0.99 (0.98–1.00)	0.001	1.00 (0.99–1.01)	0.55
Sex	1.17 (0.85–1.62)	0.32	0.93 (0.82–1.05)	0.254	0.87 (0.63–1.23)	0.44
LOS in CC	0.98 (0.95–1.00)	0.19	1.00 (0.99–1.02)	0.782	1.01 (0.98–1.04)	0.30
qSOFA score	1.57 (1.23–1.99)	0.001*	0.94 (0.84–1.05)	0.239	0.59 (0.45–0.75)	0.001*
SOFA score	1.41 (1.33–1.49)	0.001	0.90 (0.87–0.92)	0.001	0.57 (0.53–0.61)	0.001
APACHE II	1.01 (0.99–1.04)	0.15	0.99 (0.98–1.01)	0.227	0.96 (0.94–0.99)	0.019
Lactate level	1.06 (1.01–1.12)	0.01	0.99 (0.96–1.02)	0.418	0.98 (0.92–1.03)	0.51

APACHE II, Acute Physiology and Chronic Health Evaluation; HR, Hazard Ratio - 6-month mortality (Cox Regression); LOS in CC, Length of stay in critical care; MV, Mechanical ventilation, Mortality (Log Regression); SOFA, Sequential Organ Failure Assessment; The need for mechanical ventilation (Log Regression); qSOFA, quick sequential organ failure assessment.