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Occasional smoking in a Minnesota working population
D J Hennrikus1, R W Jeffery, H A Lando
1Division of Epidemiology, School of Public Health, University of Minnesota, Minneapolis 55454-1015, USA.
Objectives:
This study examined the prevalence of occasional smoking in a population of working adults, compared the characteristics of occasional and daily smokers, and prospectively examined the long-term smoking patterns of occasional smokers.
Methods:
At 32 Minnesota work sites, 5681 randomly selected workers were surveyed at baseline; 5248 of these were surveyed again 2 years later. A cross-sectional sample of 5817 workers was also surveyed at follow-up.
Results:
Occasional smokers constituted 18.3% of all smokers in the baseline sample and 21.5% of all smokers in the cross-sectional sample surveyed 2 years later. Baseline occasional smokers were significantly more likely than daily smokers to have quit at follow-up. Job monotony or repetitiveness was related to an increase to daily smoking at follow-up among baseline occasional smokers, and a change to a more restrictive workplace smoking policy was associated with quitting.
Conclusions:
The results confirm that a substantial proportion of smokers are low-rate users and suggest that the proportion may be rising. Further research on this group is warranted.