Table 5

Summary statistics for number of puffs and smoke yields (mg per cigarette) for the 26 recruited RYO smokers

PuffsCONicotineTar
Mean12.310.91.315.7
Range9.4–15.75.5–14.10.9–1.89.9–21.0
Sample standard deviation1.52.20.22.8
F/F crit 5.12.22.32.1
significantsignificantsignificantsignificant
• The tabulated values are calculated from the mean values recorded for each of the 26 recruits. A one-way analysis of variance was performed on the raw data: F/F crit is the ratio of the calculated F ratio value to the criticalF ratio for 99% confidence.

• CO = carbon monoxide.