Table 2.
Self-reported descriptions of e-cigarette use.
| E-cigarette (n = 12) | |
|---|---|
| Device use length (y) | 1.5 (0.9–2.0) |
| ≤1 | 4 |
| ≤2 | 7 |
| ≤3 | 1 |
| Weekly use (days/week) | 6.3 (5.7–7.0) |
| 5 | 4 |
| 7 | 8 |
| Daily use (times/day) | 26.7 (12.0–41.3) |
| ≤10 | 4 |
| ≤20 | 3 |
| ≤40 | 1 |
| >40 | 4 |
| E-liquid type (PG/VG) | |
| 30/70 | 2 |
| 50/50 | 2 |
| 70/30 | 8 |
| 80/20 | 1 |
| Number of e-liquid flavors | |
| 1 | 7 |
| 2 | 1 |
| 3 | 1 |
| Unknown | 3 |
| Nicotine concentrations (mg/ml) | 21.3 (5.1–37.6) |
| ≤3 mg/ml | 4 |
| 4–6 mg/ml | 4 |
| ≥50 mg/ml | 4 |
| Volume e-liquid per day (ml/day) | 5.4 (0.6–12.2) |
| ≤1 | 4 |
| ≤5 | 6 |
| ≥20 | 2 |
Means are presented with 95% CI.