Table 1.

Previously-identified features.

Previously-identified features	Evaluation scale
Day of week	1 to 7, with 1 = Monday
Availability of cigarettes	Yes or no
Alcohol consumption	Yes or no
Confidence in ability to resist smoking	1 to 4, 1 = no, 4 = yes
Location of the subject	Home, work-place, other’s home, bar/restaurant, vehicle, outside, other
Subject’s mood	Very bad, bad, neutral, good, very good
Presence of people smoking near the subject	Yes or no
Is the weekday a weekend day?	Yes or no