Table 1.
Participant Characteristics By E-Cigarette Use
| Total (n = 49) | Ever-Used E-Cigarette (n = 25) | Never Used E-Cigarette (n = 24) | E-Cigarette Use Post-ACS (n = 13) | No E-Cigarette Use Post-ACS (n = 36) | |
|---|---|---|---|---|---|
| Demographics | |||||
| Age, y | 56.5 ± 10.6 | 56.0 ± 11.1 | 57.1 ± 10.3 | 53.9 ± 9.4 | 57.4 ± 11.0 |
| Married or living with committed partner | 59.2% | 56.0% | 62.5% | 53.8% | 61.1% |
| Female | 30.6% | 40% | 20.8% | 46.2% | 25.0% |
| Race | |||||
| Non-Hispanic Caucasian | 89.8% | 88.0% | 91.7% | 92.3% | 88.9% |
| African American | 6.1% | 4.0% | 8.3% | 0.0% | 8.3% |
| Hispanic Caucasian | 2.0% | 4.0% | 0.0% | 0.0% | 2.8% |
| Multiracial | 2.0% | 4.0% | 0.0% | 7.7% | 0.0% |
| Employed full or part-time | 57.1% | 52.0% | 62.5% | 61.5% | 55.6% |
| Median yearly household income, $ | 38,000 [54,675] | 44,000 [42,250] | 27,000 [51,400] | 63,000 [62,500] | 36,000 [49,050] |
| Some college education | 51.0% | 64.0% | 37.5% | 69.2% | 44.4% |
| Medical History | |||||
| Prior ACS event | 32.7% | 36.0% | 29.2% | 30.8% | 33.3% |
| Type of ACS index event | |||||
| STEMI | 53.1% | 60.0% | 45.8% | 61.5% | 50.0% |
| NSTEMI | 36.7% | 32.0% | 41.7% | 30.8% | 38.9% |
| Unstable angina | 10.2% | 8.0% | 12.5% | 7.7% | 11.1% |
| Baseline Smoking Variables | |||||
| Tobacco, cigarettes/day | 17.0 ± 9.2 | 15.9 ± 8.6 | 18.2 ± 9.9 | 14.9 ± 6.7 | 17.8 ± 9.9 |
| Total years smoking tobacco cigarettes regularly | 38.9 ± 11.6 | 38.5 ± 11.9 | 39.3 ± 11.4 | 36.1 ± 12.2 | 39.9 ± 11.4 |
| FTCD | 4.8 ± 2.2 | 5.1 ± 2.1 | 4.6 ± 2.2 | 4.6 ± 2.2 | 4.9 ± 2.2 |
| Median number of 24-hour quit attempts in lifetimea,b | 3.0 [4.0] | 5.0 [8.0] | 2.0 [2.0] | 5.0 [14.0] | 2.0 [3.75] |
| Confidence in ability to quit (rated 1–10)a,b | 7.3 ± 2.6 | 6.6 ± 2.8 | 8.1 ± 2.2 | 6.1 ± 3.1 | 7.8 ± 2.3 |
| Treatment Process and Outcome | |||||
| Randomized to mood management condition | 49.0% | 48.0% | 50.0% | 46.2% | 50.0% |
| Accepted free nicotine patches offered by studyb | 83.7% | 80.0% | 87.5% | 61.5% | 91.7% |
| Attended cardiac rehabilitation post-ACS | 36.7% | 32.0% | 41.7% | 30.8% | 38.9% |
| eCO verified 7-day point prevalence abstinence from tobacco at 24 weeks post-ACSa,b | 49.0% | 28.0% | 70.8% | 23.1% | 58.3% |
| Continuous abstinence from tobacco at 24 weeks post-ACSa,b | 36.7% | 16.0% | 58.3% | 7.7% | 47.2% |
Abbreviations: ACS, acute coronary syndrome; STEMI, ST segment elevation myocardial infarction; NSTEMI, non-ST segment elevation myocardial infarction; FTCD, Fagerström Test for Cigarette Dependence; eCO, exhaled carbon monoxide. Data presented as either mean SD, median [IQR] or %.
a
Ever-users differ from never-users; P < .05.
b
Post-ACS users differ from post-ACS non-users; P < .05.