Table 4.
Self-Reported Adverse Respiratory Symptoms by E-Cigarette Device Type
| Connecticut Adolescents | Northern California Adolescents | Southern California Young Adults: CHS1 | Southern California Young Adults: HH2 | |||||
|---|---|---|---|---|---|---|---|---|
| %3 | AOR4 (95% CI) | %3 | AOR4 (95% CI) | %3 | AOR4 (95% CI) | %3 | AOR4 (95% CI) | |
| Outcome: Bronchitis 5,6 | ||||||||
| E-cigarette use categories:7 | ||||||||
| Pods, including JUUL | 26.5 | reference | 29.2 | reference | 38.8 | reference | 20.7 | reference |
| Vape pens/tanks | 25.1 | 1.01 (0.71, 1.46) | 41.3 | 1.72 (0.88, 3.37) | 37.5 | 0.80 (0.27, 2.37) | 16.2 | 0.77 (0.36, 1.65) |
| Disposables | 27.1 | 1.08 (0.59, 1.96) | 39.5 | 1.38 (0.87, 2.19) | --7 | --7 | 15.4 | 0.68 (0.13, 3.47) |
| Mods, including box mods | 29.4 | 1.21 (0.65, 2.27) | 27.8 | 1.32 (0.54, 3.19) | 37.1 | 0.78 (0.38, 1.60) | 25.9 | 1.35 (0.67, 2.73) |
| Multiple devices | 31.9 | 1.27 (0.91, 1.76) | 41.8 | 1.51 (0.70, 3.25) | --8 | --8 | --8 | --8 |
| Outcome: Asthma 5,6 | ||||||||
| E-cigarette use categories:7 | ||||||||
| Pods, including JUUL | 23.2 | reference | 15.1 | reference | 27.1 | reference | 22.0 | reference |
| Vape pens/tanks | 22.4 | 1.14 (0.78, 1.65) | 21.3 | 1.79 (0.83, 3.85) | 25.0 | 0.85 (0.24, 3.01) | 21.2 | 1.04 (0.52, 2.08) |
| Disposables | 17.2 | 0.73 (0.37, 1.44) | 17.3 | 1.51 (0.71, 3.24) | --7 | --7 | 23.1 | 1.12 (0.28, 4.45) |
| Mods, including box mods | 14.8 | 0.64 (0.29, 1.39) | 16.7 | 1.78 (0.36, 8.70) | 37.7 | 1.41 (0.63, 3.13) | 19.0 | 0.82 (0.39, 1.71) |
| Multiple devices | 31.5 | 1.54 (1.10, 2.14) | 25.9 | 2.10 (1.07, 4.15) | --8 | --8 | --8 | --8 |
| Outcome: Shortness of breath 5,6 | ||||||||
| E-cigarette use categories:7 | ||||||||
| Pods, including JUUL | 25.9 | reference | 22.2 | reference | 11.8 | reference | 22.0 | reference |
| Vape pens/tanks | 21.4 | 0.85 (0.58, 1.26) | 26.6 | 1.34 (0.39, 4.69) | 29.2 | 2.62 (0.74, 9.21) | 33.8 | 1.48 (0.79, 2.79) |
| Disposables | 20.3 | 0.72 (0.37, 1.38) | 34.2 | 1.80 (0.87, 3.75) | --7 | --7 | 15.4 | 0.74 (0.15, 2.79) |
| Mods, including box mods | 18.2 | 0.58 (0.28, 1.20) | 22.2 | 1.42 (0.21, 9.46) | 18.6 | 1.43 (0.53, 3.90) | 20.3 | 0.90 (0.43, 1.88) |
| Multiple devices | 32.9 | 1.46 (1.04, 2.06) | 18.2 | 0.75 (0.26, 2.19) | --8 | --8 | --8 | --8 |
Children’s Health Study
Happiness and Health Study
Prevalence of the respiratory outcome in each e-cigarette use category
Odds ratios from logistic regression models restricted to past 30-day e-cigarette users and adjusted for gender, race/ethnicity, school lunch program participation (adolescents), personal income (young adults), age, past 30-day combustible tobacco, past 30-day use of cannabis, and past 30-day frequency of e-cigarette use (1–5 days vs. 6–30 days). Missing covariable values multiply imputed for California samples.
Composite outcome, including ≥1 symptom (see: Table 2)
Bold text in table cells indicates statistically significant (P<0.05) difference in odds of the respiratory outcome compared to reference, calculated separately for each study
Based on most-frequently used e-cigarette device type in the past 30 days
Response option not included in the study questionnaire
Abbreviations: AOR = adjusted odds ratio; CI = confidence interval