Cigarette Smoking
Conditions
Keywords
Cigarette, Smoking, Nicotine, Contingency Management, Voucher Reinforcement, Smoking Abstinence, Internet, Internet-based Treatment, Group Contingencies
Brief summary
The purpose of the study is to develop and test an Internet-based group contingency management program designed to promote smoking cessation.
Interventions
BEHAVIORALFull Group Contingency
This group (n = 20) will earn vouchers based only on team (n = 4) performance. Only if all members of the team submit a negative sample (CO ≤ 4 ppm), will they each earn a voucher.
BEHAVIORALMixed Group Contingency
This group (n = 20) will earn vouchers based on both individual and team (n = 4) performance. If an individual submits a negative sample (CO ≤ 4 ppm), s/he will earn a voucher. Additionally, bonus vouchers will be earned if all team members submit negative samples.
Sponsors
National Institute on Drug Abuse (NIDA)
National Development and Research Institutes, Inc.
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Caregiver)
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No
Inclusion criteria
* self-reported smoker * ability to use the Internet * permission to contact applicant by phone
Exclusion criteria
* self-report of a history of or current severe or unstable medical or psychiatric illness that would interfere with the study * inability to avoid high levels of ambient CO (e.g., occupational exposure; lives with a another smoker who smokes in the home)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Breath CO | 8 weeks | Twice daily breath CO samples obtained during baseline and treatment |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Point prevalence measure of abstinence | at the end of treatment (approximately week 4) and at 3 month follow-up | Abstinence will be defined as: (a) CO sample ≤ 4 ppm; (b) cotinine \< 50 ng/ml; and (c) reporting not smoking, not even a puff in the last 7 days. |
| Duration of abstinence during treatment. | 3 weeks | The longest duration of sustained abstinence (CO ≤ 4 ppm) based on the twice-daily breath samples during the treatment period. |
| Rate of social exchanges | 3 weeks | The number of comments posted on the discussion forum during treatment. |
Countries
United States
Outcome results
None listed