Negative predictive value (NPV) =
TN / (TN + FN)
Communication facilitators had this effect in both major RCTs.
decreased LOS of pts who died in the ICU
Positive predictive value (PPV) =
TP / (TP + FP)
QI method for a specific incident
root cause analysis
QI method to identify steps with greatest risk
failure modes & effects analysis (FMEA)
QI method for iterative, continuous improvement
Plan-Do-Study-Act (PDSA)
QI method for reducing waste and maximizing efficiency
lean design