Setting a good example? Changes in smoking prevalence among key occupational groups in New Zealand: evidence from the 1981 and 2006 censuses.

Introduction: Role modeling by smokers may influence smoking among children and young adults. Most work on smoking by occupation has focused on health workers. A unique opportunity to explore smoking by occupation is presented in New Zealand (NZ) due to inclusion of a smoking status question in most national censuses since 1976. Our aim was to assess trends in smoking prevalence among potential role model occupational groups in NZ.

Methods: Adult smoking status by occupation was obtained from the 1981 census (N = 1,321,323) and 2006 census (N = 1,744,479). Subjects were aggregated into 5 broad groups of potential role-model occupations: teachers, uniformed services, health-related occupations, public figures, and sportspeople/entertainers. Age and sex-standardized current smoking prevalences were calculated using the 2006 NZ employed population as the reference standard.

Results: Standardized smoking prevalence among the employed population was 34.5% in 1981 and had declined 37% in relative terms and 12.8% in absolute terms to 21.7% in 2006. Relative declines in smoking prevalence between 1981 and 2006 ranged from 35% to 60% among the role model occupational groups and absolute declines from 8.3% to 19.9%. Māori had higher smoking prevalence and lower relative declines in prevalence in each occupational group from 1981 to 2006, compared with non-Māori. Specific occupations mostly had low smoking prevalences--particularly doctors and teachers. But some role model occupations had high crude smoking prevalences in 2006 (up to 47%).

Conclusions: Persisting high smoking prevalence among some occupational groups suggest that additional targeted smoking cessation support for role model occupational groups may be justified.