Purpose: We investigated the joint associations of modi able lifestyle and metabolic factors with incident cardiovascular disease and all-cause mortality.Methods: This study included 94,831 participants (men, 79.76%; median age, 51.60 [43.47-58.87]) without a history of cardiovascular disease at baseline from Kailuan study during 2006 to 2007 and followed them until new-onset cardiovascular disease event, death or December 31, 2017. Baseline metabolic health status was assessed by Adult Treatment Panel-III criteria and ve lifestyle factors was collected using a self-reported questionnaire. We performed Cox proportional hazards models to evaluate the joint associations.Results: During a median follow-up of 11.03 years, we observed 6,590 cardiovascular disease events and 9,218 all-cause mortality. Participants within more metabolic risk components and least healthy lifestyle had the highest cardiovascular disease risk (hazard ratio 2.06 [95% CI 1.77-2.39]) and mortality risk (hazard ratio 1.53 [95% CI 1.31-1.78]), as compared with the less metabolic risk components and most healthy lifestyle group. Compared with the most healthy lifestyle, the hazard ratio of cardiovascular disease for participants with least healthy lifestyle was 1.26 (95% CI 1.17-1.37) in the category with low metabolic risk, 1.16 (95% CI 1.03-1.31) and 1.07 (95% CI 0.90-1.27) for those with medium and high metabolic risk, respectively.Conclusions: We showed that healthy lifestyle was associated with a lower risk of cardiovascular disease and there was no signi cant interaction between metabolic risk and healthy lifestyle. Our results indicated that healthy lifestyle should be promoted even for people with high metabolic risk.
IntrodutionCardiovascular disease (CVD) is one of the leading causes of death worldwide and remains the great threat to public global health(1). Clinical therapy has been proven to be bene cial, but may have adverse effects, and often making functional recovery incomplete(2). Therefore, primary prevention is considered the most effective strategy in controlling CVD and its consequences(3). Some previous studies have shown that both healthy lifestyle and metabolic health status could reduce the risk of CVD and all-cause mortality(4-8).In most previous studies, lifestyle or metabolic factors have been consider individually, although those factors are typically correlated with one another. Recent studies and meta-analyses have consistently reported that combined lifestyle factors were associated with a markedly lower incidence of cardiometabolic abnormalities(9-12). While few studies described the relative relationship of lifestyle factors with risk of CVD, subtypes of CVD and all-cause mortality across a population at different degrees of metabolic risk, and whether different degrees of metabolic status affect the e cacy of lifestyle was inconclusive(7). Whereas some studies have reported that the lifestyle modi cation is effective in