The likelihood ratio represents the relative risk (specifically relative

odds) of dialysis compared to the mean risk in the overall group of cardiac

surgery patients. These likelihood ratios were somewhat more

stable in external validation, according to the authors.

The likelihood ratios (LR) associated with each score are:

Score 0 - LR 0.04 (i.e.risk ~1/25 compared to average)

Score 1 - LR 0.3 (i.e. risk ~ 3/10 compared to average)

Score 2 - LR 1.0 (i.e. risk ~ average)

Score 3 - LR 2.0 (i.e. risk ~ 2X compared to average)

Score 4 - LR 6.2 (i.e. risk ~ 6X compared to average)

Score 5 - LR 12.4 (i.e. risk ~ 12X compared to average)