Document Detail

Prediction of length of hospital stay in neonatal units for very low birth weight infants.
MedLine Citation:
PMID:  10642966     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To develop models for estimating the length of hospital stay (LOS) of very low birth weight infants (VLBW), based on perinatal risk factors present during the first week of life and during the entire hospitalization period. STUDY DESIGN: The files of 155 VLBW were analyzed, and the influence of individual risk factors were initially evaluated by univariate analysis, using multiple-regression. Two mathematical models were built to estimate the LOS. RESULTS: The first model, using risk factors present during the first 3 days of life, is as follows: LOS = -0.074A + 22.06B + 22.85C - 16.78D - 2.07E + 10.51F + 203.12 (R2 = 0.63). (The letters are added to show what each number represents: A: birth weight; B: occurrence of respiratory distress syndrome; C: endotracheal intubation during resuscitation; D: 1-minute Apgar score; E: gestational age; F: presence of complications during delivery.) The second model, using factors present during the entire hospitalization period, is: LOS = 0.61G + 29.19H + 24.68I + 14.21J + 23.56K + 9.54L + 7.41M + 20.43 (R2 = 0.82). (G: age receiving nutritional support of > or = 120 kcal/kg per day; H: occurrence of systemic candidiasis; I: birth weight < 1000 gm; J: presence of delivery complication; K: occurrence of bronchopulmonary dysplasia; L: birth weight > or = 1000 gm and < or = 1249 gm; M: occurrence of anemia). CONCLUSION: Both models are applicable for estimating the hospitalization period, and the addition of variables present during the entire hospitalization period improved the accuracy of the model.
D de C Bannwart; C M Rebello; L S Sadeck; M D Pontes; J L Ramos; C R Leone
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of perinatology : official journal of the California Perinatal Association     Volume:  19     ISSN:  0743-8346     ISO Abbreviation:  J Perinatol     Publication Date:  1999 Mar 
Date Detail:
Created Date:  2000-02-07     Completed Date:  2000-02-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8501884     Medline TA:  J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  92-6     Citation Subset:  IM    
Department of Pediatrics, University of São Paulo, Brazil.
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MeSH Terms
Infant, Newborn
Infant, Very Low Birth Weight*
Intensive Care Units, Neonatal / utilization*
Length of Stay / statistics & numerical data*
Models, Statistical
Regression Analysis
Risk Factors
Comment In:
J Perinatol. 1999 Dec;19(8 Pt 1):613   [PMID:  10645533 ]

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