Table 1. Topography Measures Collected during Machine-Smoking Replication of Human Profiles: Geometric Means (95% CIa).
| geometric
mean (95% CI)b |
||||
|---|---|---|---|---|
| description | TPc | SMc | geo. mean ratio (TP/SM) | p-value |
| puff volume (mL) | 55.57 (53.71, 57.49) | 55.62 (53.75, 57.56) | 1.00 | 0.6767 |
| total puffing volume (mL) | 643.8 (627.2,660.9) | 644.4 (627.8, 661.6) | 1.00 | 0.7856 |
| puff duration (s) | 2.119 (2.042, 2.198) | 2.101 (2.024, 2.180) | 1.01 | <0.0001* |
| interpuff interval (s) | 19.29 (18.48, 20.14) | 18.93 (18.10, 19.80) | 1.02 | <0.0001* |
| total puff duration (s) | 24.55 (23.77, 25.35) | 24.34 (23.55, 25.15) | 1.01 | 0.0095* |
| average flow (mL/s) | 27.20 (26.22, 28.21) | 26.94 (25.98, 27.94) | 1.01 | 0.0024* |
| average peak flow (mL/s) | 41.00 (39.48, 42.58) | 41.39 (39.74, 43.10) | 0.99 | 0.1312 |
a
95% CI = 95% confidence interval.
b
Sample size = 706, using all profiles.
c
TP = true profile; SM = smoothed profile.
*
Significant at p ≤ 0.05 level.