Modelo predictivo de neumonía nosocomial en unidades de cuidados intensivos

External Validation of Models for Predicting Pneumonia after Cardiac Surgery

“…Results often are accepted without sufficient regard to the importance of external validation [4], limiting the generalizability of a prediction model to future settings. Most prediction models in infection control do not reach the level of external validation [16][17][18][19][20][21][22][23] and may lose accuracy during validation. A small number of studies have focused on the prediction of nosocomial pneumonia (only one of which [24] created a prediction rule specifically for pneumonia after cardiac surgery), and their predictive models have not been validated.…”