Comparing self-rated health among exclusive e-cigarette users and traditional cigarette smokers: an analysis of the Health Survey for England 2019.

The health implications of e-cigarette use compared to traditional cigarette smoking continue to attract significant public health interest. This study examines self-rated health (SRH) outcomes among exclusive e-cigarette users versus exclusive traditional cigarette smokers, using data from the Health Survey for England 2019. From an initial sample of 10,299 participants, the study focused on 8204 adults, excluding those aged 0-15. Further refinement to exclusive nicotine product users led to 274 e-cigarette users and 1017 cigarette smokers, after excluding dual users, never users, ex-users, non-responders, and users of other tobacco products such as pipes and cigars. SRH was derived from participants' responses to a question asking how they rated their general health, with five possible options: "very good", "good", "fair", "bad", and "very bad". For the purposes of this study, these responses were collapsed into two categories: "Good Health" (combining "very good" and "good") and "Poor Health" (combining "fair", "bad", and "very bad"). Consequently, 834 participants were classified as reporting good health, while 457 reported poor health. Binary logistic regression, adjusted for factors such as age, sex, ethnicity, residence, education, body mass index, alcohol use, age started smoking, physical or mental health conditions, and frequency of GP visits, revealed that exclusive e-cigarette users were significantly more likely to report good health compared to exclusive cigarette smokers, with an odds ratio (OR) of 1.59 (95% CI: 1.10 - 2.32, p = 0.014). As a sensitivity analysis, a generalized ordered logistic regression model was performed using the original five SRH categories. The adjusted model confirmed consistent results, with exclusive e-cigarette users showing higher odds of reporting better health across the full range of SRH outcomes (OR = 1.40, 95% CI: 1.08-1.82, p = 0.011). These findings suggest that exclusive e-cigarette users perceive their health more positively than traditional cigarette smokers, contributing useful insights to the discussions around harm reduction strategies.