Table 3.
Crossover study: secondary outcomes
| SDn Tp-e, ms | SDn Tp-e/QT | SDn Tp-e/QTc | |
|---|---|---|---|
| TC Smokers | |||
| TC | 1.16 ± 0.72 | 3.21 ± 2.02 | 2.43 ± 2.24 |
| Straw | −0.49 ± 0.74 | −1.29 ± 2.08 | −1.90 ± 2.31 |
| P value | 0.062 | 0.066 | 0.096 |
| EC Users | |||
| ECN | 1.67 ± 0.46 | 5.06 ± 1.23 | 3.35 ± 1.08 |
| EC0 | 0.68 ± 0.45 | 2.58 ± 1.21 | 1.79 ± 1.06 |
| NI | 0.12 ± 0.89 | 0.50 ± 2.36 | 0.61 ± 2.07 |
| Straw control | 0.53 ± 0.44 | 1.23 ± 1.18 | 1.01 ± 1.04 |
| P value | 0.83 | 0.70 | 0.88 |
| Nonusers | |||
| ECN | 0.98 ± 0.35 | 2.78 ± 0.96 | 2.22 ± 0.86 |
| EC0 | 0.44 ± 0.35 | 0.98 ± 0.97 | 0.76 ± 0.87 |
| NI | 0.19 ± 0.63 | 0.97 ± 1.74 | 1.58 ± 1.56 |
| Straw control | 0.55 ± 0.44 | 1.52 ± 1.22 | 1.15 ± 1.10 |
| P value | 0.78 | 0.71 | 0.76 |
Values are means ± SE and are adjusted for sex using a robust two-way analysis of variance model. EC, electronic cigarette; ECN, EC with nicotine; EC0, EC without nicotine; NI, nicotine inhaler; SDn, trimmed standard deviation; TC, tobacco cigarette; Tp-e, interval from T peak to T end.