Abstract
The dose-response association between cardiorespiratory fitness and risk of atrial fibrillation (AF) is still not well known. Therefore, we performed a comprehensive meta-analysis to investigate the dose-response association between cardiorespiratory fitness and incident AF. We performed a comprehensive search in the databases of PubMed, Cochrane library, and Ovid from inception through August 2019. A one-stage robust error meta-regression method was used to summarize the dose-response association between cardiorespiratory fitness and AF. A total of 9 studies were included in this meta-analysis. In the categorical analysis, compared with the lowest level of cardiorespiratory fitness, both the intermediate (RR = 0.68, 95% CI 0.57–0.82) and highest (RR = 0.60, 95% CI 0.51–0.72) levels of cardiorespiratory fitness were associated with a decreased risk of AF. In the dose-response analysis, per 1 metabolic equivalent increase in cardiorespiratory fitness was associated with a decreased risk of AF (RR = 0.91, 95% CI 0.86–0.95). There was an inverse relationship between cardiorespiratory fitness and risk of AF with evidence of linearity (Pnon-linearity = 0.43). Current evidence suggests that there is an inverse relationship between cardiorespiratory fitness and risk of AF, manifesting as a higher level of cardiorespiratory fitness is associated with a decreased risk of AF.
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Contributors
ZB-X, Y-Z, and WG-Z performed the literature search, study selection and data extraction, quality assessment, and statistical analysis. CY-W, J-L, and X-L help check the data to ensure accuracy. ZB-X and Y-Z wrote the original draft, while WG-Z revised the draft. P-Y edited the manuscript prior to submission to ensure the standard English grammar.
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Zhengbiao Xue and Yue Zhou are co-first authors.
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Xue, Z., Zhou, Y., Wu, C. et al. Dose-response relationship of cardiorespiratory fitness with incident atrial fibrillation. Heart Fail Rev 25, 419–425 (2020). https://doi.org/10.1007/s10741-019-09871-5
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DOI: https://doi.org/10.1007/s10741-019-09871-5