Trial reportBMJ (Clinical research ed.)2008
Effect on smoking quit rate of telling patients their lung age: the Step2quit randomised controlled trial.
Trial report in BMJ (Clinical research ed.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 137 papers, 9 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
A Protocol for an Randomised Controlled Trial of Smoking Cessation Success Rate With or Without a Genetic Test, "Respiragene", to Assess Lung Cancer Risk - an Exploratory Study
Effect of Providing Education and Patient's Inferior Vena Cava Ultrasound Images on Adherence to a Heart Failure Regimen
Effectiveness of the Evaluation and Communication of "Pulmonary Age" as Help for Smoking Cessation: a Cluster Randomized Essay
Who cites it
137 citing papers in PubMed, 9 syntheses or guidelines pooled it, 384 citations in OpenAlex.
- Strategies to improve smoking cessation rates in primary care.The Cochrane database of systematic reviews · 2021Pooled it
- Biomedical risk assessment as an aid for smoking cessation.The Cochrane database of systematic reviews · 2019Pooled it
- Use and effectiveness of behavioural economics in interventions for lifestyle risk factors of non-communicable diseases: a systematic review with policy implications.Perspectives in public health · 2018Pooled it
- Smoking cessation for people with chronic obstructive pulmonary disease.The Cochrane database of systematic reviews · 2016Pooled it
- Pooled it
- An official American Thoracic Society/American College of Chest Physicians policy statement: implementation of low-dose computed tomography lung cancer screening programs in clinical practice.American journal of respiratory and critical care medicine · 2015Guideline
- An official American Thoracic Society/European Respiratory Society statement: research questions in COPD.European respiratory review : an official journal of the European Respiratory Society · 2015Pooled it
- Primary prevention of cardiovascular disease using validated risk scores: a systematic review.Journal of the Royal Society of Medicine · 2012Pooled it
- Pooled it
- Effectiveness of the spirometry-based motivational intervention to quit smoking: RESET randomised trial.The European journal of general practice · 2023Trial
- Trial
- Spirometry and Smoking Cessation in Primary Care: The ESPIROTAB STUDY, A Randomized Clinical Trial.International journal of environmental research and public health · 2022Trial
- Spirometry as a motivator for smoking cessation among patients attending the smoking cessation clinic of Monastir.BMC public health · 2022Trial
- Effectiveness of a motivational intervention based on spirometry results to achieve smoking cessation in primary healthcare patients: randomised, parallel, controlled multicentre study.Journal of epidemiology and community health · 2021Trial
- Chronic obstructive pulmonary disease in severe mental illness: A timely diagnosis to advance the process of quitting smoking.European psychiatry : the journal of the Association of European Psychiatrists · 2021Trial
- Testing patient-informed approaches for visually depicting the hemoglobin A1c value to patients with poorly controlled diabetes: a randomized, controlled trial.BMC health services research · 2020Trial
- Diagnostic accuracy of a pocket screening spirometer in diagnosing chronic obstructive pulmonary disease in general practice: a cross sectional validation study using tertiary care as a reference.BMC family practice · 2016Trial
- Multicentric randomized clinical trial to evaluate the long-term effectiveness of a motivational intervention against smoking, based on the information obtained from spirometry in primary care: the RESET study protocol.BMC family practice · 2016Trial
- The effect of motivational lung age feedback on short-term quit rates in smokers seeking intensive group treatment: A randomized controlled pilot study.Drug and alcohol dependence · 2015Trial
- Trial
77 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate the impact of telling patients their estimated spirometric lung age as an incentive to quit smoking.
designRandomised controlled trial.
settingFive general practices in Hertfordshire, England.
participants561 current smokers aged over 35.
interventionAll participants were offered spirometric assessment of lung function. Participants in intervention group received their results in terms of "lung age" (the age of the average healthy individual who would perform similar to them on spirometry). Those in the control group received a raw figure for forced expiratory volume at one second (FEV1). Both groups were advised to quit and offered referral to local NHS smoking cessation services.
main outcome measuresThe primary outcome measure was verified cessation of smoking by salivary cotinine testing 12 months after recruitment. Secondary outcomes were reported changes in daily consumption of cigarettes and identification of new diagnoses of chronic obstructive lung disease.
resultsFollow-up was 89%. Independently verified quit rates at 12 months in the intervention and control groups, respectively, were 13.6% and 6.4% (difference 7.2%, P=0.005, 95% confidence interval 2.2% to 12.1%; number needed to treat 14). People with worse spirometric lung age were no more likely to have quit than those with normal lung age in either group. Cost per successful quitter was estimated at 280 pounds sterling (366 euros, $556). A new diagnosis of obstructive lung disease was made in 17% in the intervention group and 14% in the control group; a total of 16% (89/561) of participants.
conclusionTelling smokers their lung age significantly improves the likelihood of them quitting smoking, but the mechanism by which this intervention achieves its effect is unclear.
trial registrationNational Research Register N0096173751.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.