Abstract
Since associations between coffee and tea consumption with cardiovascular disease (CVD) and chronic respiratory disease (CRD) remain controversial. This study aims to investigate the separate and combined associations of coffee and tea consumption with CVD, CRD, and their comorbidity. Within the UK Biobank, 390039 participants (56.2 ± 8.1 years) free of CVD and CRD are included. Coffee and tea consumption are self-reported at baseline. During a median follow-up of 12.1 years, 31126 CVD, 34132 CRD, and 6071 CVD-CRD comorbidity cases are identified. J-shaped associations between coffee and tea consumption with CVD, CRD, and CVD-CRD comorbidity are observed (p for nonlinearity <0.001). Compared with neither coffee nor tea consumption, hazard ratios (HRs)and 95% confidence intervals (CIs) of combined consumption of moderate coffee and tea (each 2-3 cups per day) are 0.88 (0.81-0.96) for CVD, 0.78 (0.72-0.84) for CRD, and 0.74 (0.61-0.91) for CVD-CRD comorbidity. Moderate consumption of coffee and tea separately or in combination are associated with lower risksof CVD, CRD, and their comorbidity.
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