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Variation in stool testing for children with acute gastrointestinal infections

Markham JL, Hall M, Collins ME, Shah SS, Molloy MJ, Aronson PL, Cotter JM, Steiner MJ et al.

Journal of hospital medicine, 2023

1 citation

Abstract

Background and objective: Children with gastrointestinal infections often require acute care.The objectives of this study were to describe variations in patterns of stool testing across children's hospitals and determine whether such variation was associated with utilization outcomes.

Design, settings and participants: We performed a multicenter, cross-sectional study using the Pediatric Health Information System (PHIS) database. We identified stool testing (multiplex polymerase chain reaction [PCR], stool culture, ova and parasite, Clostridioides difficile, and other individual stool bacterial or viral tests) in children diagnosed with acute gastrointestinal infections.

Main outcome and measures: We calculated the overall testing rates and hospital-level stool testing rates, stratified by setting (emergency department [ED]-only vs. hospitalized). We stratified individual hospitals into low, moderate, or high testing institutions. Generalized estimating equations were then used to examine the association of hospital testing groups and outcomes, specifically, length of stay (LOS), costs, and revisit rates.

Results: We identified 498,751 ED-only and 40,003 encounters for hospitalized children from 2016 to 2020. Compared to ED-only encounters, stool studies were obtained with increased frequency among encounters for hospitalized children (ED-only: 0.1%-2.3%; Hospitalized: 1.5%-13.8%, all p < 0.001). We observed substantial variation in stool testing rates across hospitals,…

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Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause.

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