Table 5

Potential consequences of alternative prescriptive strategies

Strategy
Number not developing late anemia (n = 4,136)
Number developing late anemia (n = 1,034)
Predictive strength

Not treated
Treated
Not treated
Treated
Sensitivity
Specificity
PPV
NPV

Corwina
2,666
1,470
234
800
0.77
0.65
0.35
0.92
Broad-basedb
0
4,136
0
1,034
1.00
0
0.20
Undefined

Late anemia, reached or would have reached 7.0 g/dl at 7 days or more after admission to intensive care unit. NPV, negative predictive value; PPV, positive predictive value. aPatients were treated on the basis of clinical trial inclusion criteria in reference [5]. bStrategy in which all patients are treated.

Milbrandt et al. Critical Care 2006 10:R39   doi:10.1186/cc4847