TY - JOUR
T1 - Predicting discharge dates from the nicu using progress note data
AU - Temple, Michael W.
AU - Lehmann, Christoph U.
AU - Fabbri, Daniel
N1 - Publisher Copyright:
Copyright © 2015 by the American Academy of Pediatrics .
PY - 2015/8/1
Y1 - 2015/8/1
N2 - BACKGROUND AND OBJECTIVES: Discharging patients from the NICU may be delayed for nonmedical abstract reasons including the need for medical equipment, parental education, and children's services. We describe a method to predict which patients will be medically ready for discharge in the next 2 to 10 days, providing lead time to address nonmedical reasons for delayed discharge. METHODS: A retrospective study examined 26 features (17 extracted, 9 engineered) from daily progress notes of 4693 patients (103 206 patient-days) from the NICU of a large, academic children's hospital. These data were used to develop a supervised machine learning problem to predict days to discharge (DTD). Random forest classifiers were trained by using examined features and International Classification of Diseases, Ninth Revision-based subpopulations to determine the most important features. RESULTS: Three of the 4 subpopulations (premature, cardiac, gastrointestinal surgery) and all patients combined performed similarly at 2, 4, 7, and 10 DTD with area under the curve (AUC) ranging from 0.854 to 0.865 at 2 DTD and 0.723 to 0.729 at 10 DTD. Patients undergoing neurosurgery performed worse at every DTD measure, scoring 0.749 at 2 DTD and 0.614 at 10 DTD. This model was also able to identify important features and provide rule-of-thumb criteria for patients close to discharge. By using DTD equal to 4 and 2 features (oral percentage of feedings and weight), we constructed a model with an AUC of 0.843. CONCLUSIONS: Using clinical features from daily progress notes provides an accurate method to predict when patients in the NICU are nearing discharge.
AB - BACKGROUND AND OBJECTIVES: Discharging patients from the NICU may be delayed for nonmedical abstract reasons including the need for medical equipment, parental education, and children's services. We describe a method to predict which patients will be medically ready for discharge in the next 2 to 10 days, providing lead time to address nonmedical reasons for delayed discharge. METHODS: A retrospective study examined 26 features (17 extracted, 9 engineered) from daily progress notes of 4693 patients (103 206 patient-days) from the NICU of a large, academic children's hospital. These data were used to develop a supervised machine learning problem to predict days to discharge (DTD). Random forest classifiers were trained by using examined features and International Classification of Diseases, Ninth Revision-based subpopulations to determine the most important features. RESULTS: Three of the 4 subpopulations (premature, cardiac, gastrointestinal surgery) and all patients combined performed similarly at 2, 4, 7, and 10 DTD with area under the curve (AUC) ranging from 0.854 to 0.865 at 2 DTD and 0.723 to 0.729 at 10 DTD. Patients undergoing neurosurgery performed worse at every DTD measure, scoring 0.749 at 2 DTD and 0.614 at 10 DTD. This model was also able to identify important features and provide rule-of-thumb criteria for patients close to discharge. By using DTD equal to 4 and 2 features (oral percentage of feedings and weight), we constructed a model with an AUC of 0.843. CONCLUSIONS: Using clinical features from daily progress notes provides an accurate method to predict when patients in the NICU are nearing discharge.
UR - http://www.scopus.com/inward/record.url?scp=84938840267&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84938840267&partnerID=8YFLogxK
U2 - 10.1542/peds.2015-0456
DO - 10.1542/peds.2015-0456
M3 - Article
C2 - 26216319
AN - SCOPUS:84938840267
SN - 0031-4005
VL - 136
SP - e395-e405
JO - Pediatrics
JF - Pediatrics
IS - 2
ER -