Evidence map›Paper›PMID 40045214›Full record

ArticleBMC gastroenterology2025

Choledocholithiasis as a risk factor for cholangiocarcinoma: a nationwide retrospective cohort study.

Jaihwan Kim, Yoon Suk Lee, Jong-Chan Lee, Jin-Hyeok Hwang

Abstract read
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Article in BMC gastroenterology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Jaihwan KimDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
Yoon Suk LeeDepartment of Internal Medicine, Ilsan Paik Hospital, Inje University College of Medicine, 170, Juhwa-ro, Ilsanseo-gu, Goyang, South Korea. lys0326@paik.ac.kr.
Jong-Chan LeeDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
Jin-Hyeok HwangDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.

Funding

Inje University 2023
6 · The paper itself

Abstract

backgroundCholedocholithiasis has been reported to be associated with the occurrence of cholangiocarcinoma (CCA); however, the association has not yet been sufficiently demonstrated. This study aimed to evaluate the association between choledocholithiasis (common bile duct stones) and CCA.

methodsThis nationwide retrospective cohort study used the Health Insurance Review and Assessment database of individuals diagnosed with choledocholithiasis between 2008 and 2009 in South Korea. Individuals were stratified by age, and CCA was categorized into extrahepatic CCA (ECA) and intrahepatic CCA (ICA). The standardized incidence ratio (SIR) was calculated to compare CCA incidence between patients with choledocholithiasis and the general population.

resultsThe study enrolled 20,808 patients with choledocholithiasis (52.35% men and 47.65% women; male-to-female ratio: 1.09:1). Over a 10-year follow-up period, CCA occurred in 548 (2.64%) patients, comprising 238 (1.14%) ECA cases and 310 (1.48%) ICA cases. The SIR was 25.23 (95% confidence interval [CI]: 21.98-28.85) for ECA and 24.64 (95% CI: 21.87-27.73) for ICA. Statistical significance persisted even after excluding cases within the first 2 years from the index date, with an SIR of 18.63 (95% CI: 16.23-21.28) for ICA and 12.73 (95% CI: 10.50-15.30) for ECA. The SIRs peaked in patients diagnosed with choledocholithiasis at the age of 70-79 years (SIR 16.61, 95% CI: 11.83-22.69) for ECA and 60-69 years (SIR 29.27, 95% CI: 23.53-36.03) for ICA.

conclusionOur study demonstrated a significant association between choledocholithiasis and cholangiocarcinoma, particularly those in their 70s for ECA and 60s for ICA. However, causation cannot be established due to the retrospective design.

Indexed as

Bile Duct NeoplasmsBile Ducts, IntrahepaticCholangiocarcinomaCholedocholithiasisAdultAgedAged, 80 and overBile Ducts, ExtrahepaticFemaleHumansIncidenceMaleMiddle AgedRepublic of KoreaRetrospective StudiesRisk FactorsCholangiocarcinomaCholedocholithiasisCohort studiesRisk factors

Identifiers

PMID40045214
PMCPMC11883955

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.