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Pediatrics. 2015 Aug;136(2):e395-405. doi: 10.1542/peds.2015-0456.

Predicting Discharge Dates From the NICU Using Progress Note Data.

Author information

1
Departments of Biomedical Informatics, and michael.w.temple@vanderbilt.edu mtemple1@me.com.
2
Departments of Biomedical Informatics, and Pediatrics, Vanderbilt University, Nashville, Tennessee.
3
Departments of Biomedical Informatics, and.

Abstract

BACKGROUND AND OBJECTIVES:

Discharging patients from the NICU may be delayed for nonmedical 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.

PMID:
26216319
PMCID:
PMC5524203
DOI:
10.1542/peds.2015-0456
[Indexed for MEDLINE]
Free PMC Article

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