Table 4: Multiple regression analysis predicting scores on Fagerström Test for Nicotine Dependence.

Predictor variable95% CI

Employment.141.85.07−.383 to 4.02
Income−.01−.07.95−.495 to .463
Age smoking was started−.09−1.24.22−.112 to .026
RFS
 Negative affect−.12−1.24.22−.265 to .060
 Addiction.363.68<.001.165 to .548
 Stimulation.101.02.31−.066 to .207
QSU-b
 Factor 1.171.24.22−.025 to .111
 Factor 2−.01−.15.88−.084 to .072
SJWS craving−.01−.07.94−.075 to .070
% of choice (tobacco versus chocolate).162.05.04.000 to .025

Note. Model for level of nicotine dependence: (10, 147) = 6.39; ; RFS = Reasons for Smoking; QSU-b = Brief Questionnaire of Smoking Urges; SJWS = Shiffman-Jarvik Withdrawal Scale.