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Table 3 Model-adjusted mean smoking topography characteristics (n = 42), Ontario, Canada, 2005-06

From: Cigarette ignition propensity, smoking behavior, and toxicant exposure: A natural experiment in Canada

Topography
Variable
Pre (95% CI) Post (95% CI) Change B p
Total Volume 834.9 (733.1, 936.7) 831.7 (745.8, 917.6) 0.30% -3.17 0.95
Puff Count 14.1 (12.7, 15.5) 14.2 (12.6, 15.9) 1.20% 0.17 0.815
Per Puff Volume
(mL)
59.6 (54.2, 64.9) 60.3 (54.9, 65.8) 1.30% 0.76 0.712
Puff Velocity
(mL/sec)
36.8 (33.8, 39.8) 37.2 (34.9, 39.6) 1.20% 0.45 0.738
Duration of Puff
(sec)
1.7 (1.6, 1.9) 1.7 (1.6, 1.9) 1.20% 20.66 0.719
Inter Puff Interval
(sec)
19.2 (17.0, 21.4) 17.9(15.1, 20.6) -7.20% -1376.49 0.331
  1. Note: Model adjusted for age, gender, race/ethnicity, and brand
  2. The above table represents the average values, percent change Pre and Post RIP compliance, B and statistical significance for all topography variables. The model is adjusted for age, gender, race, and brand covariates. All participants who did not complete the study were excluded for analysis.
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