Trial reportAmerican journal of public health1998
The effects of a health promotion-health protection intervention on behavior change: the WellWorks Study.
Trial report in American journal of public health, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 10 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
54 citing papers in PubMed, 10 syntheses or guidelines pooled it.
- Behavioural interventions for CVD risk reduction for blue-collar workers: a systematic review.Journal of epidemiology and community health · 2021Pooled it
- Are workplace health promotion programmes effective for all socioeconomic groups? A systematic review.Occupational and environmental medicine · 2020Pooled it
- Strategies to improve the implementation of workplace-based policies or practices targeting tobacco, alcohol, diet, physical activity and obesity.The Cochrane database of systematic reviews · 2018Pooled it
- Healthy food procurement and nutrition standards in public facilities: evidence synthesis and consensus policy recommendations.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2018Pooled it
- Are interventions to promote healthy eating equally effective for all? Systematic review of socioeconomic inequalities in impact.BMC public health · 2015Pooled it
- Healthy food procurement policies and their impact.International journal of environmental research and public health · 2014Pooled it
- Workplace interventions for smoking cessation.The Cochrane database of systematic reviews · 2014Pooled it
- Effects of worksite health promotion interventions on employee diets: a systematic review.BMC public health · 2010Pooled it
- Behavioral intervention to promote smoking cessation and prevent weight gain: a systematic review and meta-analysis.Addiction (Abingdon, England) · 2009Pooled it
- Dietary advice given by a dietitian versus other health professional or self-help resources to reduce blood cholesterol.The Cochrane database of systematic reviews · 2001Pooled it
- A multi-component tailored intervention in family childcare homes improves diet quality and sedentary behavior of preschool children compared to an attention control: results from the Healthy Start-Comienzos Sanos cluster randomized trial.The international journal of behavioral nutrition and physical activity · 2022Trial
- Comparing Strategies for Recruiting Small, Low-Wage Worksites for Community-Based Health Promotion Research.Health education & behavior : the official publication of the Society for Public Health Education · 2018Trial
- Effects of a worksite tobacco control intervention in India: the Mumbai worksite tobacco control study, a cluster-randomised trial.Tobacco control · 2017Trial
- Experiences recruiting Indian worksites for an integrated health protection and health promotion randomized control trial in Maharashtra, India.Health education research · 2015Trial
- C-reactive protein levels in African Americans: a diet and lifestyle randomized community trial.American journal of preventive medicine · 2013Trial
- Environmental assessment at worksites after a multilevel intervention to promote activity and changes in eating: the PACE project.Journal of occupational and environmental medicine · 2010Trial
- The effects of a controlled worksite environmental intervention on determinants of dietary behavior and self-reported fruit, vegetable and fat intake.BMC public health · 2006Trial
- Promoting behavior change among working-class, multiethnic workers: results of the healthy directions--small business study.American journal of public health · 2005Trial
- Effectiveness of a worksite intervention to reduce an occupational exposure: the Minnesota wood dust study.American journal of public health · 2002Trial
- Comprehensive Needs Assessment for Workplace Health Promotion: A Case Study of the University of Bern.International journal of public health · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
objectivesThis study assessed the effects of a 2-year integrated health promotion-health protection work-site intervention on changes in dietary habits and cigarette smoking.
methodsA randomized, controlled intervention study used the work site as the unit of intervention and analysis; it included 24 predominantly manufacturing work sites in Massachusetts (250-2500 workers per site). Behaviors were assessed in self-administered surveys (n = 2386; completion rates = 61% at baseline, 62% at final). Three key intervention elements targeted health behavior change: (1) joint worker-management participation in program planning and implementation, (2) consultation with management on work-site environmental changes, and (3) health education programs.
resultsSignificant differences between intervention and control work sites included reductions in the percentage of calories consumed as fat (2.3% vs 1.5% kcal) and increases in servings of fruit and vegetables (10% vs 4% increase). The intervention had a significant effect on fiber consumption among skilled and unskilled laborers. No significant effects were observed for smoking cessation.
conclusionsAlthough the size of the effects of this intervention are modest, on a populationwide basis effects of this size could have a large impact on cancer-related and coronary heart disease end points.
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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.