Waterpipe smoking topography measures by flavour condition conditions (n=143)*
| Topography parameters | Flavoured tobacco | Non-flavoured tobacco | P value | ||
| Mean | SD | Mean | SD | ||
| Smoking time, min | 42:23 | 7:52 | 40:32 | 9:22 | 0.01 |
| Cumulative puffing time, min | 5:37 | 3:36 | 4:48 | 2:56 | 0.003 |
| Puff duration, s | 3.4 | 1.5 | 3.2 | 1.4 | 0.32 |
| Interpuff interval, s | 27 | 17.4 | 29.7 | 19.6 | 0.06 |
| Number of puffs | 109.1 | 76.7 | 101 | 77.3 | 0.09 |
| Total volume, L | 66.8 | 48.3 | 66.7 | 45.6 | 0.97 |
| Puff volume, L | 0.68 | 0.41 | 0.79 | 0.48 | 0.01 |
| Maximum puff volume, L | 1.64 | 0.79 | 2.05 | 1 | <0.001 |
*One participant was missing data for topography.