Table 2.
PR-ENDSa puff distribution (%) by the combinations of device power and nicotine concentration (n=118,947).
| Nicotine concentration (device power) | Low power (7-9 W), n (%) | Medium power (9-11 W), n (%) | High power (11-13 W), n (%) |
| Zero nicotine (0 mg/mL) | 4633 (3.90) | 517 (0.43) | 0 (0) |
| Low nicotine (≤6 mg/mL) | 6464 (5.43) | 22,933 (19.28) | 36,108 (30.36) |
| Medium nicotine (6-14 mg/mL) | 2955 (2.48) | 12,361 (10.39) | 3075 (2.59) |
| High nicotine (≥14 mg/mL) | 4816 (4.05) | 10,996 (9.24) | 14,089 (11.84) |
aPR-ENDS: puff recording electronic nicotine delivery system.