Table 2.
Long-Term Abstinence at Follow-Upa, b Among US Smokers Who Made a Quit Attempt in 2015–2016, According to Use or No Use, of e-Cigarettes to Aid Quitting, Population Assessment of Tobacco and Health Study
| Cigarette Smoking Status (W2) and e-Cigarettes Used to Aid Quit Attempt? c | Cigarette Abstinence (W4) | Nicotine d Abstinence (W4) | ||||
|---|---|---|---|---|---|---|
| No. | Weighted % Abstinent | 95% CI | No. | Weighted % Abstinent | 95% CI | |
| All current cigarette smokers | ||||||
| Yes | 427 | 12.9 | 9.1, 16.7 | 427 | 2.8 | 0.9, 4.8 |
| No | 2,108 | 11.3 | 9.6, 13.0 | 2,108 | 8.1 | 6.5, 9.7 |
| Daily cigarette smokers | ||||||
| Yes | 290 | 13.7 | 8.8, 18.7 | 290 | 3.4 | 0.8, 6.1 |
| No | 1,455 | 9.5 | 7.7, 11.3 | 1,455 | 7.3 | 5.7, 9.0 |
| Nondaily cigarette smokers | ||||||
| Yes | 137 | 11.1 | 5.7, 16.5 | 137 | 1.5 | −0.6, 3.7 |
| No | 653 | 15.1 | 11.7, 18.4 | 653 | 9.6 | 6.6, 12.6 |
Abbreviations: W2, wave 2 of the study; W4, wave 4 of the study.
a Abstinence of ≥12 months, reported at wave 4.
b Weighted US population estimates.
c e-Cigarette use status for most recent quit attempt, among all smokers reporting a quit attempt at wave 3.
d Nicotine use includes any of cigarettes, e-cigarettes, and nicotine replacement therapy.