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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2014 Jun 12;23(9):1793–1803. doi: 10.1158/1055-9965.EPI-14-0280

Table 4. Puff by puff smoking profiles by cigarette type and puffing parameter.

First three puffs Last three puffs

Cigarette type Smoking topography parameter ANOVA (F) 1 2 3 X Y Z
RYO (n=34) Volume † (5.01) 2*, 3† 1*, Z* 1†, Y*, Z† - 3* 2*, 3†
Duration † (8.75) 3† Y*, Z† 1†, X*, Y†, Z† 3* 2*, 3† 2†, 3†
Intervals † (21.86) - 3†, X†, Y†, Z† 2†, X†, Y† 2†, 3†, Z† 2†, 3†, Z† 2†, X†, Y†
Velocity NS - - - - - -

PMM (n=23) Volume † (4.31) 2*, 3† 1* 1†, Z* - - 3*
Duration † (8.56) 3* Z† 1*, X*, Y†, Z† 3* 3† 2†, 3†
Intervals † (12.88) - X†, Y† X†, Y† 2†, 3†, Z† 2†, 3†, Z† X†, Y†
Velocity † (6.26) X*, Y†, Z† - Z* 1* 1† 1†, 3*

FM (n=20) Volume † (5.11) 2*, 3* 1*, Z† 1*, Z† - - 2†, 3†
Duration † (11.41) Z† X*, Y†, Z† X†, Y†, Z† 2*, 3† 2†, 3† 1†, 2†, 3†
Intervals † (19.68) - X†, Y† X†, Y† 2†, 3†, Z† 2†, 3†, Z† X†, Y†
Velocity * (2.73) Z† - - - - 1†

Grouping variable: cigarette type; all conditions are combined; RYO – roll your own; PMM – personal machine made; FM – factory made; 1, 2, 3 - the first three; and X, Y, Z – the last three puffs ANOVA / post-hoc ANOVA test: