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. Author manuscript; available in PMC: 2014 May 17.
Published in final edited form as: J Clin Child Adolesc Psychol. 2013 May 17;42(5):629–642. doi: 10.1080/15374416.2013.794698

Table 1.

Descriptive Statistics and Pairwise Comparisons for Smoking Measures, at Baseline and Follow-up, by Longitudinal Smoking Group

BASELINE
15 MONTHS
Smoke Frequency
Smoke Quantity
mFTQ
Smoke Frequency
Smoke Quantity
mFTQ
N M SD M SD M SD N M SD M SD M SD
Nonsmokers 129 0.00a 0.00 0.00a 0.00 0.79a 0.85 110 0.00a 0.00 0.00a 0.00 0.77a 0.85
Triers 109 1.40b 0.95 0.81b 0.83 1.30b 0.85 105 0.85a 1.03 0.60a,b 0.99 1.26b 0.70
Experimenters 32 1.69a,b 2.12 0.48a,b 0.60 1.16a,b 0.88 31 6.69 2.02 177b,c,d 1.48 1.55b 0.72
Rapid Escalators 34 2.79b 2.39 1.35b,c 1.87 1.68b,c 0.88 34 25.99 5.77 7.06e 5.85 3.27 1.84
Infrequent Stables 37 11.62c 5.32 2.18c,d 1.28 2.08c,d 0.83 37 13.58 10.86 2.95c 3.08 2.43 1.29
Smokers 43 27.56 2.53 4.99 3.44 3.51 1.22 43 28.95 2.06 8.95e 5.68 4.05 1.43
Quitters 21 9.70c 8.27 1.79b,d 2.18 1.96b,d 1.32 21 0.00a 0.00 0.00a,d 0.00 1.33a,b 1.02
7-day Smoke Rate
EMA Smoking
Smoking Identity
7-day Smoke Rate
EMA Smoking
Smoking Identity
N M SD M SD M SD N M SD M SD M SD
Nonsmokers 129 0.00a 0.01 0.36a 1.47 1.29a 0.59 110 0.00a 0.00 0.65 0.41 1.07a 0.27
Triers 109 0.10a 0.19 0.95a,b 1.52 1.43a 0.57 105 0.06a,b 0.26 0.28a 0.65 1.28a,b 0.57
Experimenters 32 0.10a 0.19 0.91a,b 1.77 1.58a 0.70 31 0.45a,b 0.35 0.78a,b 1.41 1.68b,c 0.76
Rapid Escalators 34 0.22a,b 0.44 2.71b,c 3.74 1.61a 0.67 34 4.70 5.56 8.26c 11.65 3.05d 1.15
Infrequent Stables 37 1.02b,c 0.76 3.49c 2.29 2.39b 0.64 37 1.46b,c 2.06 3.89b 5.75 2.12c 1.03
Smokers 43 4.08 3.34 11.49 9.60 3.24 1.05 43 7.24 4.99 11.14c 10.49 3.33d 0.86
Quitters 21 1.17b,c 2.11 3.95c 4.30 2.48b 0.85 21 0.00a,c 0.00 0.19a,b 0.68 1.20 0.5

Note. Smoke frequency = # days smoked in the past month; Quantity = # cigarettes smoking on days smoked in the past month; mFTQ= Modified Fagerstrom Tolerance Questionnaire; 7-day Smoke Rate = #cigarettes/day during assessment week; EMA Smoking = # smoke reports recorded on EMA device; Smoking Identity = Smoking Identity Scale.

Within each smoking measure at each time point, mean values with shared alphabetic superscripts signify nonsignificant pairwise comparisons; all other pairwise comparisons were significant at p < .05.