Table 4 Test characteristics of Red Cell Distribution Width for 30-day mortality. Data presented as %.

From: Preoperative Red Cell Distribution Width and 30-day mortality in older patients undergoing non-cardiac surgery: a retrospective cohort observational study

RDW (centile)

Positive predictive value

Negative Predictive value

Sensitivity

Specificity

≥13 (35th)

93.2

31.7

1.9

99.7

≥14 (69th)

70.8

68.2

3.1

99.4

≥15 (84th)

51.0

84.0

4.4

99.2

≥16 (91st)

36.0

91.2

5.6

99.0

≥17 (94th)

25.4

94.5

6.2

98.9

  1. RDW - Red cell distribution width.
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