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Open Access Research article

The relationship between workers’ self-reported changes in health and their attitudes towards a workplace intervention: lessons from smoke-free legislation across the UK hospitality industry

Laura MacCalman1, Sean Semple2, Karen S Galea1, Martie Van Tongeren1, Scott Dempsey1, Shona Hilton3*, Ivan Gee4 and Jon G Ayres5

Author Affiliations

1 Scottish Centre for Indoor Air, Institute of Occupational Medicine, Edinburgh, UK

2 Scottish Centre for Indoor Air, University of Aberdeen, Aberdeen, UK

3 MRC/CSO Social and Public Health Sciences Unit, Glasgow, UK

4 Centre for Public Health, Liverpool John Moore’s University, Liverpool, UK

5 Institute of Occupational and Environmental Medicine, University of Birmingham, Birmingham, UK

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BMC Public Health 2012, 12:324  doi:10.1186/1471-2458-12-324

Published: 2 May 2012

Abstract

Background

The evaluation of smoke-free legislation (SFL) in the UK examined the impacts on exposure to second-hand smoke, workers’ attitudes and changes in respiratory health. Studies that investigate changes in the health of groups of people often use self-reported symptoms. Due to the subjective nature it is of interest to determine whether workers’ attitudes towards the change in their working conditions may be linked to the change in health they report.

Methods

Bar workers were recruited before the introduction of the SFL in Scotland and England with the aim of investigating their changes to health, attitudes and exposure as a result of the SFL. They were asked about their attitudes towards SFL and the presence of respiratory and sensory symptoms both before SFL and one year later. Here we examine the possibility of a relationship between initial attitudes and changes in reported symptoms, through the use of regression analyses.

Results

There was no difference in the initial attitudes towards SFL between those working in Scotland and England. Bar workers who were educated to a higher level tended to be more positive towards SFL. Attitude towards SFL was not found to be related to change in reported symptoms for bar workers in England (Respiratory, p = 0.755; Sensory, p = 0.910). In Scotland there was suggestion of a relationship with reporting of respiratory symptoms (p = 0.042), where those who were initially more negative to SFL experienced a greater improvement in self-reported health.

Conclusions

There was no evidence that workers who were more positive towards SFL reported greater improvements in respiratory and sensory symptoms. This may not be the case in all interventions and we recommend examining subjects’ attitudes towards the proposed intervention when evaluating possible health benefits using self-reported methods.

Keywords:
‘Self-Reported Health’; Attitudes; ‘Workplace Intervention’; ‘Public Health Intervention’