Journal
JOURNAL OF CLINICAL PHARMACOLOGY
Volume 62, Issue 6, Pages 706-720Publisher
WILEY
DOI: 10.1002/jcph.2020
Keywords
drug-drug interaction identification; drug-drug interactions; intensive care; medication safety; patient safety; pharmacoepidemiology
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Funding
- Netherlands Organization for Health Research and Development [80-83600-98-40140]
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This study evaluated the association between methodological choices and pDDI frequency in ICU patients and provided reporting recommendations. The analysis revealed significant heterogeneity in methodological choices and a high risk of bias in the majority of studies. High risk of bias, small sample size, and use of drug prescriptions instead of administrations were associated with a higher pDDI frequency.
Patients admitted to the intensive care unit (ICU) are frequently exposed to potential drug-drug interactions (pDDIs). However, reported frequencies of pDDIs in the ICU vary widely between studies. This can be partly explained by significant variation in their methodological approach. Insight into methodological choices affecting pDDI frequency would allow for improved comparison and synthesis of reported pDDI frequencies. This study aimed to evaluate the association between methodological choices and pDDI frequency and formulate reporting recommendations for pDDI frequency studies in the ICU. The MEDLINE database was searched to identify papers reporting pDDI frequency in ICU patients. For each paper, the pDDI frequency and methodological choices such as pDDI definition and pDDI knowledge base were extracted, and the risk of bias was assessed. Each paper was categorized as reporting a low, medium, or high pDDI frequency. We sought associations between methodological choices and pDDI frequency group. Based on this comparison, reporting recommendations were formulated. Analysis of methodological choices showed significant heterogeneity between studies, and 65% of the studies had a medium to high risk of bias. High risk of bias, small sample size, and use of drug prescriptions instead of administrations were related to a higher pDDI frequency. The findings of this review may support researchers in designing a reliable methodology assessing pDDI frequency in ICU patients. The reporting recommendations may contribute to standardization, comparison, and synthesis of pDDI frequency studies, ultimately improving knowledge about pDDIs in and outside the ICU setting.
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