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Published on: April 1, 2022
Multiple substance use and the risk of pancreatitis: a systematic review
Esther A Adeniran1, Yi Jiang2, Dhiraj Yadav3
1Department of Biomedical Sciences, Cedars-Sinai Medical Center, 6500 Wilshire Blvd, 15th Floor, 1544B, Los Angeles, CA 90048, USA.
Background:
The impact of multiple substance use on the risk of pancreatitis remains underexplored.
Objective:
To systematically review peer-reviewed observational studies assessing the association of multiple substance use with the risk of acute pancreatitis (AP) or chronic pancreatitis (CP) in adults.
Design:
We conducted a systematic review informed by the Preferred Reporting Items for Systematic Review and Meta-Analyses guideline.
Data Sources And Methods:
EMBASE, MEDLINE, and PsycINFO were searched up to March 2024. Reference lists of included studies were reviewed. From 5205 records identified, 181 relevant records were evaluated in full text. Studies evaluating the association of ⩾2 substances, including tobacco, alcohol, cannabis, and illicit substances, with AP or CP were included. Data were extracted by one reviewer, with quality control by a second reviewer. Quality assessments were independently conducted by two reviewers, with differences resolved by a third.
Results:
Of 11 included studies, 6 investigated AP as the outcome and 5 examined CP. Among AP studies, 5 comparing smoking and alcohol to alcohol-only use showed high heterogeneity (I 2 = 90.9%), with relative risks (RRs) from 1.40 to 11.40. One study examining cannabis and alcohol versus alcohol found a lower risk of AP in cannabis users. Among CP studies, four comparing smoking and alcohol to alcohol-only use were heterogeneous (I 2 = 81%) with odds ratios 1.21-31.50. Where examined, smoking increases the risk of AP and CP in a dose-dependent fashion. Heavy alcohol users demonstrated a significant increase in CP risk across all smoking categories in one study.
Conclusion:
Combined alcohol and tobacco use increases pancreatitis risk compared to single substance use, despite heterogeneity in RRs and exposure definitions. Evidence suggests a dose-dependent impact of smoking on pancreatitis risk when added to alcohol. Studies on the impact of a combination of other substance use on pancreatitis risk are needed.
Trial Registration Prospero:
CRD42024503677.
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