Table 7. Time point mean differences (95% CI) in pairwise comparisons for MLE markers, within confinement a .
| MLE marker (units) | Weeks 0–12 | Weeks 0–24 | Weeks 12–24 |
|---|---|---|---|
| Char line (mm) | −0.24 (−1.84, 1.37) | 1.15 (−0.45, 2.75) | 1.38 (−0.23, 3.00) |
| Nicotine (mg/cigarette) | −0.63 (−0.78, −0.48) b | −0.52 (−0.68, −0.36) b | 0.11 (−0.05, 0.27) |
| Nicotine (mg/day) | −8.71 (−12.71, −4.71) b | −6.88 (−11.04, −2.72) b | 1.83 (−2.35, 6.01) |
| Tar (mg/cigarette) | −4.30 (−6.56, −2.05) b | −3.05 (−5.39, −0.71) b | 1.25 (−1.10, 3.60) |
| Tar (mg/day) | −31.4 (−88.1, 25.4) | −13.9 (−72.9, 45.2) | 17.5 (−41.8, 76.8) |
MLE, mouth level exposure. See Table 5 for sample sizes.
a
Ultra-low machine yield tobacco-burning cigarette group only.
b
p < 0.05.