ArticleTobacco prevention & cessation2024
Self-reported smoking status and exhaled carbon monoxide in secondary preventive follow-up after coronary heart events: Do our patients tell the truth?
Article in Tobacco prevention & cessation, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It reports registered trial NCT00679237. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Risk Reduction in Coronary Heart Disease - a Prospective Randomized Study
Open the trial in the graphWho cites it
2 citing papers in PubMed.
- Evaluating smoking cessation interventions for people living with HIV in a factorial randomised clinical trial in South Africa using the Multiphase Optimization Strategy (MOST) framework: The Tlogela Trial protocol.Contemporary clinical trials · 2025Article
- Smoking increases breast toxicity despite adjuvant hypofractionated IMRT in early breast cancer.Radiation oncology (London, England) · 2025Article
Corrections and comments
- Erratum issued
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionSmoking cessation reduces the risk of myocardial infarctions (MI) and death in patients with coronary heart disease. Smoking status is frequently assessed based on self-report. The aims of this study were to compare self-reported and objectively measured (exhaled carbon monoxide [eCO]) smoking status after MI, percutaneous coronary intervention (PCI), and coronary artery bypass grafting (CABG), and to assess whether assumed wrongly declared smoking cessation was associated to poorer achievement of other treatment targets for secondary prevention.
methodsThis study was a sub-analysis from a randomized controlled trial at Sorlandet Hospital, Arendal, Norway, 2007-2022, including patients hospitalized due to MI or after scheduled PCI/CABG, and primarily aimed at comparing secondary preventive follow-up in the outpatient clinic versus primary healthcare. Participants were followed up after the index event through outpatient consultations. Smoking status was assessed by self-report and by eCO (Smokerlyzer, Bedfont, UK) with concentration values ≥6 ppm interpreted as suggesting smoking.
resultsA total of 1540 participants aged 18-80 years were included in the main study. Self-reported smoking status and concomitant eCO measurement one year after the index event were available in 1291 (84%) participants. In all, Brussels, Belgium, from the 12th to the 13th of September 2024. The concentration of eCO was ≥6 ppm one year after the index event in 285 (22%) patients, and 72 (25%) of these patients reported non-smoking. Fewer patients with elevated eCO reporting non-smoking achieved the treatment target for blood pressure (<140/90 mmHg) in comparison to those reporting smoking (53% vs 68%, p=0.02). No differences for the other treatment targets for secondary prevention were found.
conclusionsThe study indicates a need for objective measures for smoking cessation both in clinical studies and in clinical practice, and may indicate a lack of truthfulness regarding smoking habits. CLINICAL
trial registrationThe study is registered on the official website of ClinicalTrials.gov. IDENTIFIER: ID NCT00679237.
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