Association between alcohol consumption and risk of stroke among adults: results from a prospective cohort study in Chongqing, China

BMC Public Health

Research

Xiang Liu¹  Wenge Tang²  Yunyun Wu²  Liling Chen²  Xianbin Ding²  Jingfu Qiu³  Meng Xiao³  Fan Zhang³  Qinwen Luo³  Xiaojun Tang³  Xin Liu³ 

[1]Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, China

[2]Institute of Chronic Non-Communicable Disease Control and Prevention, Chongqing Center for Disease Control and Prevention, Chongqing, China

[3]School of Public Health, Research Center for Medical and Social Development, Chongqing Medical University, Chongqing, China

关键词: Stroke;    Alcohol consumption;    Prospective cohort study;    Drinking patterns;    Interactions;    Adults;   

DOI  :  10.1186/s12889-023-16361-9

 received in 2023-01-14, accepted in 2023-07-20,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundThe incidence of stroke in China is increasing, along with a clear trend in the prevalence of risk factors. Alcohol consumption is also a risk factor for stroke. Many cohort studies have explored the relationship between alcohol consumption and stroke risk. However, findings have been inconsistent.MethodsWe used cluster sampling to select 13 districts and counties (at the same level) in Chongqing, China. Then, we used stratified random sampling to distribute the number of people in each district and county. 23,308 adults aged 30–79 were recruited between October 2018 and February 2019. Follow-up was conducted through a monitoring system and questionnaires until September 2022. Information on alcohol consumption and other covariates was collected using a standardized questionnaire. Participants were asked to report their weekly frequency of drinking over the past year and weekly intake of various alcoholic beverages in general. The frequency of drinking was divided into three categories: 1–2 d/week, 3–5 d/week, and 6–7 d/week. The average daily alcohol consumption is calculated based on the amount of alcohol contained in different alcoholic beverages. It is classified as nondrinker (0 g/day), light (0 to 12 g/day), moderate (13 to 36 g/day), and high (> 36 g/day). Cox proportional hazard regression models were used to estimate the association between alcohol consumption and stroke risk. Results are shown as multivariate-adjusted hazard ratios (HRs) and 95% confidence intervals (95% CIs).ResultsWith an average follow-up of 3.80 years, there were 310 new stroke events. The incidence of total stroke was 368.69 per 100,000 person-years. Overall, after adjusting for covariates, moderate alcohol consumption (average daily alcohol consumption 13–36 g/d) was associated with a lower risk of total stroke (HR: 0.48; 95% CI: 0.25–0.92) compared with nondrinkers. The adjusted HR and 95% CI for total stroke and ischemic stroke for those who drank alcohol 6–7 days per week were 0.60(0.37, 0.96) and 0.53(0.30, 0.94), respectively. The risk of total stroke (HR: 0.39; 95% CI: 0.17–0.89) was reduced in a pattern of drinking 6–7 days per week but with a mean alcohol consumption of less than 36 g/d. There was no significant association between alcohol consumption and hemorrhagic stroke.ConclusionThis study suggests moderate alcohol consumption is associated with a lower risk of total stroke. And healthy drinking patterns should be of more significant concern.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

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