SmokeFree ML Variable List

Variable nr	Variable name	Description	Time-invariant vs. time-varying
1	account_id	Unique user ID	Time-invariant
2	adjusted_quit_date	Quit date set on the app, stored in UTC (with timezone offset applied)	Time-invariant
3	cigs_per_day	Cigarettes per day (CPD) reported at baseline (cut-off set to 100 CPD)	Time-invariant
4	adjusted_craving_record_created	Time when craving record was entered into the app (with timezone offset applied)	Time-varying
5	craving_severity	Scale (1-10) of how severe the craving was	Time-varying
6	craving_did_smoke	Whether the user smoked (outcome variable of interest)	Time-varying
7	craving_env_alone	Whether the user was alone	Time-varying
8	craving_env_colleagues	Whether the user was with colleagues	Time-varying
9	craving_env_family	Whether the user was with family members	Time-varying
10	craving_env_friends	Whether the user was with friends	Time-varying
11	craving_env_partner	Whether the user was with their partner	Time-varying
12	craving_env_strangers	Whether the user was with strangers	Time-varying
13	craving_occupation_at_bar_or_event	Whether the user was at a bar/an event	Time-varying
14	craving_occupation_chatting	Whether the user was chatting	Time-varying
15	craving_occupation_coffee_or_tea	Whether the user was drinking coffee/tea	Time-varying
16	craving_occupation_drinking	Whether the user was drinking alcohol	Time-varying
17	craving_occupation_driving	Whether the user was driving	Time-varying
18	craving_occupation_going_to_bed	Whether the user was going to bed	Time-varying
19	craving_occupation_just_eaten	Whether the user had just eaten	Time-varying
20	craving_occupation_just_had_sex	Whether the user had just had sex	Time-varying
21	craving_occupation_reading	Whether the user was reading	Time-varying
22	craving_occupation_relaxing	Whether the user was relaxing	Time-varying
23	craving_occupation_taking_a_break	Whether the user was taking a break	Time-varying
24	craving_occupation_thinking	Whether the user was thinking	Time-varying
25	craving_occupation_waking_up	Whether the user was waking up	Time-varying
26	craving_occupation_working	Whether the user was working	Time-varying
27	craving_occupation_other	Whether the user was doing something else	Time-varying
28	craving_feeling_annoyed	Whether the user was feeling annoyed	Time-varying
29	craving_feeling_anxious	Whether the user was feeling anxious	Time-varying
30	craving_feeling_bored	Whether the user was feeling bored	Time-varying
31	craving_feeling_down	Whether the user was feeling down	Time-varying
32	craving_feeling_happy	Whether the user was feeling happy	Time-varying
33	craving_feeling_hungry	Whether the user was feeling hungry	Time-varying
34	craving_feeling_lonely	Whether the user was feeling lonely	Time-varying
35	craving_feeling_stressed	Whether the user was feeling stressed	Time-varying
36	craving_feeling_other	Whether the user was feeling something else	Time-varying
37	wkday_craving	Day of the week (Mon-Sun)	Time-varying
38	time_of_day	Time of day (morning, midday, evening, night)	Time-varying
39	event_nr	Rolling tally of craving records for each user	Time-varying
40	days_since_qd	Rolling tally of days since the quit date for each craving record and user	Time-varying
41	mins_since_prev_rep	Minutes since the previous craving record for each user	Time-varying