Persons living with HIV who do not smoke cigarettes: A comparison of ex-smokers and never smokers.

Background and aims: Approximately half of persons living with HIV (PLWH) in the US smoke cigarettes. Large surveys show that 16.9%-37.3% of PLWH are never smokers compared to 57.5% of US adults. Similar proportions of PLWH and general population adults describe themselves as ex-smokers (20.3% vs 21.9% respectively). Little research has been done to characterize PLWH non-smokers. In this study, we compared a group of well characterized PLWH ex-smokers (i.e., no cigarettes for at least 5 years) to PLWH never smokers with the aim of developing a clearer understanding of the characteristics of these groups and the differences between them.

Design: Cross-sectional interview study employing audio computer-assisted self-interview (ACASI).

Setting: Comprehensive HIV care center in New York City.

Participants: In 2018-2019, we recruited a sample of PLWH never smokers (N = 54) and long-term ex-smokers (no cigarettes for at least 5 years, N = 36). Non-smoking status of participants was verified by exhaled carbon monoxide.

Measurements: We collected a range of sociodemographic, historical, clinical, and psychobehavioral data pertaining to tobacco use.

Results: Compared to never smokers, ex-smokers were older, more likely to have heterosexually acquired HIV and less likely to have same-sex-acquired infection, more likely to have parents and/or siblings who smoked, more likely to have current smoker/s in their households, and more likely to have ever used marijuana, cocaine, and/or heroin.

Conclusions: We describe important demographic and sociobehavioral differences between PLWH never smokers and ex-smokers that may be useful in crafting an effective response to the cigarette smoking epidemic in US PLWH.