Importance of the time sequence between measurement of the predictor and of the predicted outcome

We congratulate Mizutani and colleagues for their insight on predictive performance of Shock Index (SI) for postpartum hemorrhage (PPH) during cesarean delivery, which provides an overview of the pattern of SI during cesarean delivery and explores its usefulness for detecting PPH.1 Nevertheless, we would like to emphasize the importance of distinguishing prediction from diagnosis of PPH. The title suggests that SI has been assessed as a predictor of PPH during cesarean delivery, however the methods and results indicate that the SI was analyzed as a detection-tool of PPH.
Source: International Journal of Obstetric Anesthesia - Category: Anesthesiology Authors: Tags: Correspondence Source Type: research