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Fig. 7 | Journal of Cardiothoracic Surgery

Fig. 7

From: Comparative analysis of sleep duration and stroke prevalence in China and the U.S. before and during COVID-19

Fig. 7

Path diagram illustrating the mediation analysis of the relationship between sleep time and stroke risk across various years. The graphs (AC) correspond to the 2018 CHARLS database; (DF) to the 2020 CHARLS database; (G–I) to the 2017–2020.03 NHANES database; and (J–L) to the 2021.08–2023.08 NHANES database, each depicting the mediating effects of hypertension, dyslipidemia, and diabetes, respectively

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