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January 24, 20260 citations

FIT Testing in Iron Deficiency Anemia: A Retrospective Analysis.

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GLGaius Longcroft‐Wheaton

Key Points

  • The main aim is to assess the negative predictive value (NPV) of FIT testing in patients with iron deficiency anemia.
  • Conducted a retrospective analysis of FIT testing results in patients diagnosed with iron deficiency anemia.
  • Evaluated the effectiveness of FIT in determining the need for colonoscopy.
  • Comparative analysis with existing data from low-risk symptomatic populations.
  • FIT showed a lower negative predictive value than previously reported.
  • Uncertainty exists whether the results sufficiently eliminate the need for further colonoscopy exams.
  • Calls for prospective multicenter studies to clarify FIT's role in diagnosing anemia-related conditions.

Abstract

The NPV of FIT in IDA appears lower than reported in low-risk symptomatic populations, and it is unclear if this is adequate to negate the need for colonoscopy. Prospective multicentre studies are needed to evaluate this fully.

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Gaius Longcroft‐Wheaton (2026) studied this question.

synapsesocial.com/papers/6974610cbb9d90c67120aeddhttps://doi.org/10.1097/mcg.0000000000002338
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