Cardiovascular
How broadly does smoking raise heart and vessel disease risk?
Open access · cc by · source: Europe PMC
In a large Australian cohort, current smoking raised risk across nearly all CVD subtypes—especially peripheral arterial disease—and quitting lowered risk.
Study at a glance
- Design
- Cohort — 45 and Up Study; current and past vs never smokers for fatal/non-fatal CVD subtypes
- N
- N=188167 · Analysis dataset 188,167 participants; 27,511 major CVD events over 1.35 million person-years
- Population
- Australian adults in the 45 and Up Study
- Outcome
- Hospitalisation or death from major CVD subtypes by smoking status
Structured fields used in claim comparison tables when every cited study has a complete layer.
Key findings
Among 27,511 major CVD events, current smoking elevated risks for IHD/AMI, stroke, heart failure, and especially PAD (RR ~5). Risks were intermediate in former smokers; quitting reduces risk. Even paroxysmal tachycardia risk was implicated.
Methodology
Using the 45 and Up Study with 1.35 million person-years of follow-up, investigators compared current and past smokers with never smokers for dozens of fatal/non-fatal CVD subtypes.
Limitations
Observational residual confounding is possible despite adjustment; subtype risks vary and are not identical.
How this study connects
Role on claims
Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.
A larger weight-adjusted waist index associates with higher stroke odds in US survey data.
In US NHANES adults (2011–2020), higher weight-adjusted waist index was associated with higher odds of self-reported stroke after multivariable adjustment (about 25% higher odds per 1-unit WWI; highest vs lowest quartile OR about 1.62).
Scope note — different design — prospective risks, not cross-sectional NHANES odds
Limits the claim's scope: a different population, assay, or outcome.
A more inflammatory diet score associates with higher stroke odds in related survey data.
In a related NHANES analysis, higher dietary inflammatory index quartiles were associated with higher stroke odds (highest vs lowest quartile OR about 1.87), with a nonlinear pattern and a LASSO-based nomogram AUC near 80%.
Scope note — different design — prospective cohort, not NHANES cross-section
Limits the claim's scope: a different population, assay, or outcome.
These markers flag observational risk — they are not proven treatment targets.
In the prospective 45 and Up Study, current smoking was associated with elevated risks across many CVD subtypes including stroke, with especially large relative risks for peripheral arterial disease; former smokers showed intermediate risks, consistent with risk reduction after quitting.
Evidence for the claim as stated.
NHANES stroke associations are cross-sectional and self-reported; 45 and Up smoking estimates are prospective event risks. A stronger causal reading is more defensible for the smoking cohort design than for the NHANES odds ratios—without requiring the NHANES associations to be “wrong.”
Evidence for the claim as stated.
Tobacco smoking associates with many cardiovascular disease subtypes.
Large-scale tobacco analyses link smoking to broad cardiovascular subtype risk—downstream disease burden beyond mood symptoms.
Evidence for the claim as stated.
Association ORs for depression, cessation trial/intervention results, and CV disease risk from tobacco should not be treated as one causal chain without designs that can test directionality.
Evidence for the claim as stated.
Conservative Burden of Proof methods still link SHS to multiple adult/child outcomes.
A Burden of Proof synthesis associated SHS with nine outcomes; conservative floors included ≥~8% higher IHD, ≥~5% stroke, and smaller but positive floors for type 2 diabetes and lung cancer (two-star ratings), with additional child respiratory and other endpoints.
Scope note — active smoking CVD subtype risks are larger/different exposure than SHS
Limits the claim's scope: a different population, assay, or outcome.
Active tobacco smoking maps onto many CVD subtypes, not only “heart disease” as one bucket.
Large cohort evidence linked tobacco smoking to risk across dozens of fatal and non-fatal cardiovascular disease subtypes.
Evidence for the claim as stated.
Maternal cigarette dose and preterm birth odds vs Conservative SHS relative-risk floors across outcomes vs Active smoking across CVD subtypes
Evidence for the claim as stated.
The 45 and Up Study accumulated 1.35 million person-years and 27,511 major CVD events. Current smoking raised risks across IHD/AMI, stroke and heart failure, and especially PAD (RR about 5); former smokers sat in between. Subtype risks are not identical, and residual confounding is still possible despite adjustment.
Evidence for the claim as stated.
Follow-up of thousands of event-free adults is a different design from a 74-person telemedicine case series, even if both get filed as cohorts. The HLI, diet-depression, smoking-CVD and Rotterdam papers estimate rates or attributable fractions over years. The WeChat paper describes outcomes after care already delivered, with no control group, so it cannot show that monitoring caused recovery.
Evidence for the claim as stated.
Open questions
Tensions this paper is part of
From concept pages' “where studies disagree.” Disagreement means the same question; scope means different assays, populations, or outcomes.
NHANES stroke associations are cross-sectional and self-reported; 45 and Up smoking estimates are prospective event risks. A stronger causal reading is more defensible for the smoking cohort design than for the NHANES odds ratios—without requiring the NHANES associations to be “wrong.”
Association ORs for depression, cessation trial/intervention results, and CV disease risk from tobacco should not be treated as one causal chain without designs that can test directionality.
- Supports · Does smoking track with depression in US adults?
- Supports · Smart-T smoking EMI app
Maternal cigarette dose and preterm birth odds vs Conservative SHS relative-risk floors across outcomes vs Active smoking across CVD subtypes
Follow-up of thousands of event-free adults is a different design from a 74-person telemedicine case series, even if both get filed as cohorts. The HLI, diet-depression, smoking-CVD and Rotterdam papers estimate rates or attributable fractions over years. The WeChat paper describes outcomes after care already delivered, with no control group, so it cannot show that monitoring caused recovery.
- Supports · Healthy lifestyle and multimorbidity risk
- Supports · Diet quality and depression risk
- Supports · WeChat monitoring of home COVID patients
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