Logistic regression: 30-day cigarette cessation at wave 2, PATH (2013–2015) (n=5124)
| 30-Day cigarette cessation at wave 2 | |||
| Adjusted OR | (95% CI) | P value | |
| Sex | |||
| Male | Ref | – | – |
| Female | 1.14 | (0.91 to 1.41) | 0.250 |
| Age | |||
| 25–34 years | Ref | – | – |
| 35–44 years | 0.93 | (0.65 to 1.32) | 0.670 |
| 45–54 years | 0.95 | (0.63 to 1.44) | 0.803 |
| 55–64 years | 1.09 | (0.71 to 1.68) | 0.681 |
| 65–74 years | 1.32 | (0.73 to 2.38) | 0.354 |
| ≥75 years | 1.68 | (0.63 to 4.47) | 0.294 |
| Race/ethnicity | |||
| Non-Hispanic white | Ref | – | – |
| Non-Hispanic black | 0.61 | (0.40 to 0.92) | 0.018 |
| Hispanic | 0.83 | (0.57 to 1.21) | 0.323 |
| Non-Hispanic other | 1.07 | (0.60 to 1.92) | 0.810 |
| Region | |||
| Northeast | Ref | – | – |
| Midwest | 1.04 | (0.68 to 1.59) | 0.865 |
| South | 1.36 | (0.94 to 1.95) | 0.099 |
| West | 1.05 | (0.70 to 1.58) | 0.797 |
| Household income | |||
| Below poverty level | Ref | – | – |
| At or near poverty level | 1.12 | (0.79 to 1.59) | 0.514 |
| ≥Twice poverty level | 1.31 | (0.92 to 1.86) | 0.131 |
| Education | |||
| Less than high school | Ref | – | – |
| High school or equivalent | 0.90 | (0.59 to 1.39) | 0.638 |
| Some college | 0.99 | (0.66 to 1.49) | 0.975 |
| Bachelor’s/advanced degree | 0.91 | (0.53 to 1.57) | 0.732 |
| Lived in a smoking household as a child | |||
| No | Ref | – | – |
| Yes | 0.81 | (0.57 to 1.14) | 0.225 |
| Currently lives with a cigarette smoker | |||
| No | Ref | – | – |
| Yes | 0.98 | (0.73 to 1.32) | 0.886 |
| Frequency of cigarette use at wave 1 | |||
| Some-day cigarette smoker | Ref | – | – |
| Everyday cigarette smoker | 0.27 | (0.19 to 0.38) | <0.001 |
| Intensity of cigarette smoking at wave 1 | |||
| <1 pack per day | Ref | – | – |
| 1–2 packs per day | 0.88 | (0.61 to 1.26) | 0.480 |
| ≥2 packs per day | 0.85 | (0.30 to 2.36) | 0.748 |
| Time to first cigarette in morning | |||
| ≤5 min | Ref | – | – |
| 6–29 min | 1.28 | (0.86 to 1.91) | 0.221 |
| 30–59 min | 1.88 | (0.69 to 5.12) | 0.212 |
| ≥60 min | 1.88 | (1.21 to 2.93) | 0.005 |
| Tried to quit smoking cigarettes in year prior to wave 1 | |||
| No | Ref | – | – |
| Yes | 1.25 | (1.00 to 1.57) | 0.049 |
| New e-cigarette use at wave 2 | |||
| Non-user | Ref | – | – |
| Experimental e-cigarette user | 0.51 | (0.26 to 1.00) | 0.050 |
| Some-day e-cigarette user | 0.51 | (0.17 to 1.47) | 0.207 |
| Everyday e-cigarette user | 7.88 | (4.45 to 13.95) | <0.001 |
e-cigarette, electronic cigarette; PATH, Population Assessment of Tobacco and Health; Ref, reference.