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Prediction of Recurrent Clostridium Difficile Infection Using Comprehensive Electronic Medical Records in an Integrated Healthcare Delivery System

  • Gabriel J. Escobar (a1), Jennifer M. Baker (a2), Patricia Kipnis (a1) (a3), John D. Greene (a1), T. Christopher Mast (a4), Swati B. Gupta (a5), Nicole Cossrow (a4), Vinay Mehta (a4), Vincent Liu (a1) (a6) and Erik R. Dubberke (a7)...

Abstract

BACKGROUND

Predicting recurrent Clostridium difficile infection (rCDI) remains difficult. METHODS. We employed a retrospective cohort design. Granular electronic medical record (EMR) data had been collected from patients hospitalized at 21 Kaiser Permanente Northern California hospitals. The derivation dataset (2007–2013) included data from 9,386 patients who experienced incident CDI (iCDI) and 1,311 who experienced their first CDI recurrences (rCDI). The validation dataset (2014) included data from 1,865 patients who experienced incident CDI and 144 who experienced rCDI. Using multiple techniques, including machine learning, we evaluated more than 150 potential predictors. Our final analyses evaluated 3 models with varying degrees of complexity and 1 previously published model.

RESULTS

Despite having a large multicenter cohort and access to granular EMR data (eg, vital signs, and laboratory test results), none of the models discriminated well (c statistics, 0.591–0.605), had good calibration, or had good explanatory power.

CONCLUSIONS

Our ability to predict rCDI remains limited. Given currently available EMR technology, improvements in prediction will require incorporating new variables because currently available data elements lack adequate explanatory power.

Infect Control Hosp Epidemiol 2017;38:1196–1203

Copyright

Corresponding author

Address correspondence to Gabriel J. Escobar, MD, Systems Research Initiative, Kaiser Permanente Division of Research, 2000 Broadway Ave (032 R01), Oakland, CA 94612-2304 (gabriel.escobar@kp.org) or John Greene, MA, Systems Research Initiative, Kaiser Permanente Northern California Division of Research, 2000 Broadway Ave, Oakland, CA 94612 (john.d.greene@kp.org).

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Infection Control & Hospital Epidemiology
  • ISSN: 0899-823X
  • EISSN: 1559-6834
  • URL: /core/journals/infection-control-and-hospital-epidemiology
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