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Research Article: Oral Glucose Tolerance Testing Using Candy: A Sweet Solution to Improve Screening in Children with Cystic Fibrosis?

Date Published: 2023-07-31

Abstract:
Introduction: Oral glucose tolerance testing is recommended for all children with CF older than 9 years, yet compliance remains poor across centers. Methods: We performed a small pilot study assessing the glycemic curves and participant satisfaction in seven children and adolescents. Results: We chose a dextrose-based candy (Nerds®) free of any fat, fiber, gelatin, or corn syrup and performed the candy OGTT 1–4 days following the standard oral dextrose solution OGTT. Glucose values at 120 min were similar between the candy and oral dextrose solution (p = 0.8986). Conclusions: Our small pilot suggests that a carefully selected candy alternative may result in similar glycemic OGTT when compared to the standard oral dextrose solution. However, some participants preferred the oral dextrose solution to candy due to having to consume a large volume in a short period of time. This may have significant implications as centers consider candy alternatives to increase OGTT adherence rates.

Introduction:
The Cystic Fibrosis (CF) Foundation recommends yearly screens for diabetes for all people with CF ages 10 and older via a 2 h oral glucose tolerance test (OGTT) [1]. Current adherence rates to this test are poor across many centers, with minimal published data describing solutions [2,3]. For example, in 2017, only 43% of patients aged 10 or older completed the test among a wide network of accredited CF centers [3]. While there are many reasons why OGTT screening rates may be low, the taste of the glucose solution…

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