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Article Abstract
Background: The association between body mass index (BMI) and all-cause mortality of patients with Cardiogenic Shock (CS) is still controversial. The objective of this analysis is to summarize the available evidence of this association and perform meta-analysis using adjusted estimates.
Methods: PubMed, Embase and Cochrane databases were systematically searched for eligible studies up to July 2020. Studies were considered eligible if they described the association between BMI and all-cause mortality of patients with CS, and those reporting adjusted estimates were included in the meta-analysis.
Results: Three studies were identified and included total 345,281 participants. The pooled hazard ratio of all-cause mortality was 0.88(95% confidence interval (CI): 0.71-1.08, P = 0.23) when compared obesity with non-obese. In subgroup analysis, A subgroup analysis based on geographic region showed that obese patients had lower mortality compared with non-obese patients (OR = 0.71,95% CI 0.65-0.77, P < 0.00001) in USA, developed country and the retrospective study. Heterogeneity was not explained in pre-specified subgroups analysis.
Conclusion: Obesity was associated with increased adjusted all-cause mortality of patients with Cardiogenic Shock when compared to non-obese. Unexplained heterogeneity and suboptimal quality of studies limit the strength of the results. This seemingly paradoxical finding needs to be confirmed with further research.
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| http://dx.doi.org/10.1016/j.ajem.2021.01.003 | DOI Listing |
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