Table 3. Independent prognostic correlates and clinical outcome.

Correlates	High oxygen dependency	ICU care or death	Survival time
	OR (95% CI) p value	OR (95% CI) p value	Hazard ratio (95% CI) p value
Age (per 10-y increase)	1.48 (1.21 to 1.8) p<0.001	1.57 (1.26 to 1.95) p<0.001	1.75 (1.38 to 2.2) p<0.001
Admission neutrophil (per 1x109/L increase)	1.31 (1.14 to 1.5) p<0.001	1.28 (1.13 to 1.46) p<0.001	1.17 (1.09 to 1.26) p<0.001
Initial LDH level (per 100 IU/L increase)	1.49 (1.23 to 1.82) p<0.001	1.35 (1.11 to 1.64) p=0.003	p value not significant

^aICU, intensive care unit; LDH = lactate dehydrogenase; OR, odds ratio; CI, confidence interval.