EPIC — Diet quality and risk of COPD
In plain English
Pooling the Nurses' Health Study and Health Professionals Follow-Up Study (120,000+ adults followed 16 years), participants in the top fifth of the Alternative Healthy Eating Index had about 33% lower risk of newly diagnosed COPD. The protection held after adjusting for smoking, age and other risks.
Why it matters
High AHEI score → 33% lower COPD risk over 16 years.
Informs: Respiratory
Provenance
- Design
- Prospective cohort
- Sample size (n)
- 120,000
- Follow-up
- 16 years
- Peer-reviewed
- Yes
- Replications
- 2
- Funding
- Public / academic
- Funders
- US National Institutes of Health
- Institutions
- Harvard T.H. Chan School of Public Health, INSERM
decades.plus score
A transparent 0–100 weighted sum across six components. Higher scores reflect bigger, cleaner, more replicated work.
Caveats
Observational; AHEI score correlates with many healthy behaviours. Smoking is still the dominant COPD risk factor by an order of magnitude.