What is the clinical evidence from this study?

Study design: Observational. Population: General population (n=42188). Intervention: Morning-type pattern of coffee drinking vs. Non-coffee drinking. Primary outcome: All-cause mortality (HR 0.84, 95% CI 0.74-0.95).

What does this research mean for the field?

Morning coffee consumption is associated with a lower risk of mortality compared to drinking coffee later in the day among US adults. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To identify timing patterns of coffee consumption in US adults and examine their associations with all-cause and cause-specific mortality.

April 23, 2026European Heart JournalOpen Access

Coffee drinking timing and mortality in US adults

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Key result

Morning-type coffee drinking linked to ~16% lower all-cause mortality vs. no coffee.

HR 0.84
95% CI 0.74-0.95
n=42,188

Why the study?

Patterns of coffee drinking timing in the US population and their associations with all-cause and cause-specific mortality were not well characterized.

Does a morning-type coffee drinking pattern reduce all-cause and cardiovascular mortality in US adults compared to non-coffee drinking?

Population

40,725 US adults from NHANES 1999-2018 and 1,463 adults from the Women's and Men's Lifestyle Validation Study

Comparison

Morning-type coffee drinking pattern vs non-coffee drinking

Design

Observational study with clustering analysis

Follow-up

Median 9.8 years

Authors

XWXuan WangTulane University HMHao MaShanghai Institute of Nutrition and Health QSQi SunGeneral / Preventive / Lipids

Discussion

Member takes

Implication

Should not yet change clinical advice on coffee timing; leaves open causality pending randomized trials.

Key Points

To identify timing patterns of coffee consumption in US adults and examine their associations with all-cause and cause-specific mortality.
Analyzed 40,725 adults from the National Health and Nutrition Examination Survey (1999–2018) and validated findings in 1,463 adults with 7-day dietary records from the Women's and Men's Lifestyle Validation Study.
Used clustering analysis to identify distinct coffee intake timing patterns, tracking participants over a median follow-up of 9.8 years (interquartile range: 9.1 years).
Adjusted multivariable survival models for caffeinated and decaffeinated intake volumes, sleep duration, and other lifestyle confounders.
Identified two major consumption profiles: a morning-type pattern (36% of participants) and an all-day-type pattern (14% of participants).
Compared with non-coffee drinkers, morning-type drinkers had lower risks of all-cause mortality (HR: 0.84; 95% CI: 0.74–0.95) and cardiovascular disease mortality (HR: 0.69; 95% CI: 0.55–0.87), while all-day drinkers showed no significant risk reductions.
Timing significantly modified the mortality benefit of intake volume (P-interaction = 0.031), with higher coffee amounts reducing all-cause mortality only among morning-type drinkers.

Study Design

Type

Observational (n=42,188)

Structured PICO

Does a morning-type coffee drinking pattern reduce all-cause and cardiovascular mortality in US adults compared to non-coffee drinking?

Population

42,188 US adults with complete dietary data followed for a median of 9.8 years.

Exposure

Morning-type coffee drinking pattern

Comparator

Non-coffee drinking

Outcome

All-cause and cause-specific (cardiovascular disease, cancer) mortalityhard clinical

Main Result

Hazard Ratio: 0.84 (95% CI 0.74–0.95)

Drinking coffee in the morning is associated with a lower risk of all-cause and cardiovascular mortality compared to non-coffee drinking, an effect not seen with all-day coffee consumption.

Cite This Study

Wang et al. (2025) conducted an observational in General population (n=42,188). Morning-type pattern of coffee drinking vs. Non-coffee drinking was evaluated on All-cause mortality (HR 0.84, 95% CI 0.74-0.95). A morning-type pattern of coffee drinking was associated with a lower risk of all-cause mortality compared with non-coffee drinking (HR 0.84; 95% CI 0.74-0.95).

synapsesocial.com/papers/69e98fa572ff25a8e3dbc094 https://doi.org/10.1093/eurheartj/ehae871

View Full Paper

Ask AI

Bookmark

Coffee drinking timing and mortality in US adults

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Main Result

Cite This Study

Coffee drinking timing and mortality in US adults

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Main Result

Cite This Study

Also Consider

Also Consider