Background
Methods
Program development
Selection and recruitment of participants
Data collection
Data analysis
Results
Participant baseline characteristics
Sociodemographic characteristics | n (%) or mean ± SD | |
Gender | Female | 19 (23.5) |
Male | 62 (76.5) | |
Age | 18–24, n (%) | 57 (70.4) |
25–49, n (%) | 23 (28.4) | |
+ 50, n (%) | 1 (1.2) | |
Country of birth, n (%)a | Israel | 62 (76.5) |
Not Israel | 18 (22.2) | |
Relationship status, n (%) | Single | 66 (81.5) |
Married | 15 (18.5) | |
Divorced | 0 | |
Education, n (%) | More than a high school education | 25 (30.9) |
Completed high school | 55 (67.9) | |
Less than a high school education | 1 (1.2) | |
Base type | Open, n (%) | 36 (44.4) |
Closed, n (%) | 45 (55.6) | |
Smoking characteristics | n (%) or mean ± SD | |
Daily cigarettes smoked, mean ± SD | 13.0 ± 6.0 | |
Past quit attempts, mean ± SD | 5.3 ± 8.1 | |
Age of smoking initiation (years), mean ± SD | 16.7 ± 2.4 | |
Time of first daily cigarette, n (%) | Within 5 min | 6 (7.4) |
5–30 min | 24 (29.6) | |
31–60 min | 37 (45.7) | |
Over 60 min | 14 (17.3) | |
Presence of one or more smokers in household, n (%) | 44 (54.3) | |
Days until chosen quit date, mean ± SD | 10.5 ± 4.8 | |
Mobile phone usage | Owns a smartphone, n (%) | 81 (100) |
Number of texts sent per week, mean ± SD | 99.8 ± 209.0 |
Program feasibility
Participant interaction | n (%) or mean ± SD | |
---|---|---|
Keyword usage data | NERVOUS | 22 (27.2) |
BOREDOM | 14 (17.3) | |
SLIPPED_UP | 11 (13.6) | |
REASONS | 17 (21.0) | |
NEED | 30 (37.0) | |
CODE | 3 (3.7) | |
SMOKED | 45 (55.6) | |
STOP | 31 (38.3) | |
NEW | 19 (23.5) | |
QUIT | 19 (23.5) | |
FINAL | 20 (24.7) | |
Proportion of participants who sent more than 1 keyword (including non-valid) | 74 (91.4) | |
Proportion of participants who sent more than 1 valid keyword | 69 (85.2) | |
Total number of keywords sent by participant to system | 7.6 ± 6.6 | |
Self-report from survey | Answer to question: “how many times did you sent keywords?” | 6.6 ± 10.9 |
Question from survey | N (%) |
---|---|
Did you read most or all texts? | 50 (79.4) |
Did you encounter any problems during use of the program? | 5 (7.9) |
Did you make a real attempt to quit? | 56 (88.9) |
Did you change your quit date? | 14 (22.2) |
Did you leave the program? | 12 (19.0) |
Have you used the keywords? | 38 (60.3) |
Did you use the website? | 9 (14.3) |
Has program helped compared to previous quit attempts? (among 49 participants with previous attempts) | 29 (59.2) |
Was the program easy to use? | 61 (96.8) |
Did we send the right amount of messages a day? | 42 (66.7) |
Did the messages give you good ideas to help you quit? | 44 (69.8) |
Did the messages help you quit? | 42 (66.7) |
Did you feel that somebody cared if you quit? | 45 (71.4) |
Would you recommend the program to a friend? | 53 (84.1) |