Table 2.

Ward mortality, severity score on admission, and standardized mortality ratio for patients classified by quartiles of red cell distribution width at ICU discharge

Quartile	Red cell distribution width	Ward mortality	SAPS3 predicted risk of death	Standardized mortality ratio
1	< 13.8%	6 (0.7%)	14%	0.13
2	13.9–14.8%	25 (2.9%)	21%	0.32
3	14.9–16.3%	59 (7.5%)	28%	0.50
4	> 16.1%	86 (10.3%)	34%	0.77

SAPS3 Simplified Acute Physiologic Score 3, ICU intensive care unit