Topography | Location | Sex | Frequency of use | ||||||
Home (n=75) | Café (n=4) | P values* | Female (n=38) | Male (n=41) | P values* | Daily | Weekly | P values* | |
Total smoking time, minutes | 47.2 (45.1 to 49.4) | 41.3 (38.0 to 44.6) | 0.216 | 47.2 (44.2 to 50.3) | 46.6 (43.7 to 49.6) | 0.797 | 47.0 (44.3 to 49.8) | 47.3 (44.1 to 50.6) | 0.887 |
Total no of puffs | 293 (267 to 318) | 251 (105 to 397) | 0.455 | 310 (269 to 350) | 273 (244 to 301) | 0.133 | 295 (269 to 321) | 288 (242 to 335) | 0.799 |
Total puffing time, minutes | 15.6 (12.4 to 18.7) | 10.0 (4.8 to 15.3) | 0.427 | 13.9 (12.6 to 15.2) | 16.6 (10.8 to 22.3) | 0.386 | 17.0 (11.6 to 22.4) | 13.4 (12.0 to 14.9) | 0.244 |
Total inhaled volume, litres | 217 (198 to 235) | 176 (96 to 256) | 0.324 | 218.1 (192 to 244) | 211 (186 to 236) | 0.696 | 221 (197 to 244) | 211 (183 to 238) | 0.583 |
Single puff volume, litres | 0.79 (0.73 to 0.86) | 0.75 (0.37 to 1.14) | 0.786 | 0.74 (0.66 to 0.82) | 0.84 (0.74 to 0.94) | 0.125 | 0.79 (0.70 to 0.88) | 0.81 (0.71 to 0.91) | 0.785 |
Single puff duration, seconds | 2.9 (2.7 to 3.1) | 2.5 (1.0 to 4.0) | 0.399 | 2.8 (2.5 to 3.0) | 3.0 (2.7 to 3.4) | 0.196 | 2.9 (2.6 to 3.2) | 2.98 (2.67 to 3.30) | 0.588 |
Interpuff interval, seconds | 7.5 (6.8 to 8.2) | 8.8 (1.7 to 15.8) | 0.441 | 7.1 (6.3 to 8.0) | 8.0 (6.9 to 9.1) | 0.203 | 7.2 (6.3 to 8.0) | 8.14 (6.95 to 9.32) | 0.168 |
*Independent samples t-test.