Skip to main content

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.