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Egg consumption and risk of cardiovascular disease: three large prospective US cohort studies, systematic review, and updated meta-analysis.


ABSTRACT:

Objective

To evaluate the association between egg intake and cardiovascular disease risk among women and men in the United States, and to conduct a meta-analysis of prospective cohort studies.

Design

Prospective cohort study, and a systematic review and meta-analysis of prospective cohort studies.

Setting

Nurses' Health Study (NHS, 1980-2012), NHS II (1991-2013), Health Professionals' Follow-Up Study (HPFS, 1986-2012).

Participants

Cohort analyses included 83?349 women from NHS, 90?214 women from NHS II, and 42?055 men from HPFS who were free of cardiovascular disease, type 2 diabetes, and cancer at baseline.

Main outcome measures

Incident cardiovascular disease, which included non-fatal myocardial infarction, fatal coronary heart disease, and stroke.

Results

Over up to 32 years of follow-up (>5.54 million person years), 14?806 participants with incident cardiovascular disease were identified in the three cohorts. Participants with a higher egg intake had a higher body mass index, were less likely to be treated with statins, and consumed more red meats. Most people consumed between one and less than five eggs per week. In the pooled multivariable analysis, consumption of at least one egg per day was not associated with incident cardiovascular disease risk after adjustment for updated lifestyle and dietary factors associated with egg intake (hazard ratio for at least one egg per day v less than one egg per month 0.93, 95% confidence interval 0.82 to 1.05). In the updated meta-analysis of prospective cohort studies (33 risk estimates, 1?720?108 participants, 139?195 cardiovascular disease events), an increase of one egg per day was not associated with cardiovascular disease risk (pooled relative risk 0.98, 95% confidence interval 0.93 to 1.03, I2=62.3%). Results were similar for coronary heart disease (21 risk estimates, 1?411?261 participants, 59?713 coronary heart disease events; 0.96, 0.91 to 1.03, I2=38.2%), and stroke (22 risk estimates, 1?059?315 participants, 53?617 stroke events; 0.99, 0.91 to 1.07, I2=71.5%). In analyses stratified by geographical location (P for interaction=0.07), no association was found between egg consumption and cardiovascular disease risk among US cohorts (1.01, 0.96 to 1.06, I2=30.8%) or European cohorts (1.05, 0.92 to 1.19, I2=64.7%), but an inverse association was seen in Asian cohorts (0.92, 0.85 to 0.99, I2=44.8%).

Conclusions

Results from the three cohorts and from the updated meta-analysis show that moderate egg consumption (up to one egg per day) is not associated with cardiovascular disease risk overall, and is associated with potentially lower cardiovascular disease risk in Asian populations.

Systematic review registration

PROSPERO CRD42019129650.

SUBMITTER: Drouin-Chartier JP 

PROVIDER: S-EPMC7190072 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Publications

Egg consumption and risk of cardiovascular disease: three large prospective US cohort studies, systematic review, and updated meta-analysis.

Drouin-Chartier Jean-Philippe JP   Chen Siyu S   Li Yanping Y   Schwab Amanda L AL   Stampfer Meir J MJ   Sacks Frank M FM   Rosner Bernard B   Willett Walter C WC   Hu Frank B FB   Bhupathiraju Shilpa N SN  

BMJ (Clinical research ed.) 20200304


<h4>Objective</h4>To evaluate the association between egg intake and cardiovascular disease risk among women and men in the United States, and to conduct a meta-analysis of prospective cohort studies.<h4>Design</h4>Prospective cohort study, and a systematic review and meta-analysis of prospective cohort studies.<h4>Setting</h4>Nurses' Health Study (NHS, 1980-2012), NHS II (1991-2013), Health Professionals' Follow-Up Study (HPFS, 1986-2012).<h4>Participants</h4>Cohort analyses included 83 349 wom  ...[more]

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