Tobacco use is substantially higher among sexual minorities than among heterosexuals. The reasons for this persistent disparity remain unclear, but the high toll of death and disability from tobacco use creates substantial health inequalities in cancer. Same-sex couples'movement within the U.S. results in same-sex couples concentrating in more urban neighborhoods where there may be more tobacco retailers. Living near a tobacco retailer has been associated with decreased success in quitting tobacco. The presence or absence of overlapping patterns of same-sex couples and tobacco retailers have not been explored. This study uses a unique and high quality list of 92,384 tobacco retailers from 97 U.S. counties with 18,034 census tracts and data from the U.S. Census to examine the relationship between same-sex couple density and tobacco retailer density in census tracts. The analysis uses geographical information systems (GIS) software that allows for buffering census tract areas to create a measure of tract tobacco retailer density. This relationship is tested usin spatial regression models to account for non-independence due to geographic proximity. The relationship is then examined to see if it is the result of other, confounding census tract characteristics. A multiple mediation approach is proposed to examine if the relationship between tobacco retailer density and same-sex couple density is confounded by tract characteristics such as urbanicity, income, and racial/ethnic composition.

Public Health Relevance

Sexual minorities are more likely to use tobacco products than heterosexuals. The reasons for this disparity are unknown;however, where people live and their proximity to tobacco retailers can influence decisions to quit smoking. This study examines overlapping patterns of tobacco retailers and same-sex couples to examine the potential role of tobacco retailer density in sexual minority tobacco disparities.

Agency
National Institute of Health (NIH)
Type
Predoctoral Individual National Research Service Award (F31)
Project #
1F31CA186434-01A1
Application #
8781905
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Korczak, Jeannette F
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2014
Total Cost
Indirect Cost
Name
University of North Carolina Chapel Hill
Department
Miscellaneous
Type
Schools of Public Health
DUNS #
City
Chapel Hill
State
NC
Country
United States
Zip Code
27599
Lee, Joseph G L; Matthews, Alicia K; McCullen, Cramer A et al. (2014) Promotion of tobacco use cessation for lesbian, gay, bisexual, and transgender people: a systematic review. Am J Prev Med 47:823-31