Trial Outcomes & Findings for Wisconsin Tobacco Quit Line Medicaid Incentive Evaluation (NCT NCT02713594)
NCT ID: NCT02713594
Last Updated: 2017-04-21
Results Overview
The primary outcome data will be the biochemically confirmed abstinence using urine (measured cotinine) or exhaled (breath) carbon monoxide (CO).
COMPLETED
NA
1900 participants
Measured 6 months after enrollment at follow-up assessment
2017-04-21
Participant Flow
Participant milestones
| Measure |
Control
Participants in the Control condition received counseling from the Wisconsin Tobacco Quit Line (WTQL) consisting of 5 proactive calls to the participant to help them successfully quit tobacco use, plus ad hoc calls at the participant's initiation; also, WTQL coaches encouraged participants to see their health care provider to obtain Medicaid-approved smoking cessation medications to help them quit smoking.
|
Incentive
Participants in the Incentive Condition received counseling from the Wisconsin Tobacco Quit Line (WTQL) consisting of 5 proactive calls to the participant to help them successfully quit tobacco use, plus ad hoc calls at the participant's initiation; also, WTQL coaches encouraged participants to see their health care provider to obtain Medicaid-approved smoking cessation medications to help them quit smoking.
Participants in the Incentive condition also received financial incentives to complete proactive counseling calls from the WTQL received ($30 per completed call); in addition, Incentive condition participants received $40 for producing biochemical evidence of abstinence at the 6-month follow-up visit.
|
|---|---|---|
|
Overall Study
STARTED
|
952
|
948
|
|
Overall Study
COMPLETED
|
562
|
552
|
|
Overall Study
NOT COMPLETED
|
390
|
396
|
Reasons for withdrawal
| Measure |
Control
Participants in the Control condition received counseling from the Wisconsin Tobacco Quit Line (WTQL) consisting of 5 proactive calls to the participant to help them successfully quit tobacco use, plus ad hoc calls at the participant's initiation; also, WTQL coaches encouraged participants to see their health care provider to obtain Medicaid-approved smoking cessation medications to help them quit smoking.
|
Incentive
Participants in the Incentive Condition received counseling from the Wisconsin Tobacco Quit Line (WTQL) consisting of 5 proactive calls to the participant to help them successfully quit tobacco use, plus ad hoc calls at the participant's initiation; also, WTQL coaches encouraged participants to see their health care provider to obtain Medicaid-approved smoking cessation medications to help them quit smoking.
Participants in the Incentive condition also received financial incentives to complete proactive counseling calls from the WTQL received ($30 per completed call); in addition, Incentive condition participants received $40 for producing biochemical evidence of abstinence at the 6-month follow-up visit.
|
|---|---|---|
|
Overall Study
Withdrawal by Subject
|
32
|
22
|
|
Overall Study
Lost to Follow-up
|
358
|
374
|
Baseline Characteristics
Wisconsin Tobacco Quit Line Medicaid Incentive Evaluation
Baseline characteristics by cohort
| Measure |
Control
n=952 Participants
Counseling from WTQL
|
Incentive
n=948 Participants
Counseling from WTQL; Financial incentive to participate
|
Total
n=1900 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Continuous
|
44.9 years
STANDARD_DEVIATION 11.2 • n=5 Participants
|
45.0 years
STANDARD_DEVIATION 11.2 • n=7 Participants
|
45.0 years
STANDARD_DEVIATION 11.2 • n=5 Participants
|
|
Sex: Female, Male
Female
|
577 Participants
n=5 Participants
|
569 Participants
n=7 Participants
|
1146 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
375 Participants
n=5 Participants
|
379 Participants
n=7 Participants
|
754 Participants
n=5 Participants
|
|
Race/Ethnicity, Customized
White
|
390 Participants
n=5 Participants
|
393 Participants
n=7 Participants
|
783 Participants
n=5 Participants
|
|
Race/Ethnicity, Customized
Black or African American
|
487 Participants
n=5 Participants
|
485 Participants
n=7 Participants
|
972 Participants
n=5 Participants
|
|
Race/Ethnicity, Customized
Asian
|
3 Participants
n=5 Participants
|
1 Participants
n=7 Participants
|
4 Participants
n=5 Participants
|
|
Race/Ethnicity, Customized
American Indian/Alaska Native
|
18 Participants
n=5 Participants
|
16 Participants
n=7 Participants
|
34 Participants
n=5 Participants
|
|
Race/Ethnicity, Customized
Other
|
36 Participants
n=5 Participants
|
38 Participants
n=7 Participants
|
74 Participants
n=5 Participants
|
|
Race/Ethnicity, Customized
Refused/Do not know/Not collected
|
18 Participants
n=5 Participants
|
15 Participants
n=7 Participants
|
33 Participants
n=5 Participants
|
|
Region of Enrollment
United States
|
952 Count of Participants
n=5 Participants
|
948 Count of Participants
n=7 Participants
|
1900 Count of Participants
n=5 Participants
|
PRIMARY outcome
Timeframe: Measured 6 months after enrollment at follow-up assessmentThe primary outcome data will be the biochemically confirmed abstinence using urine (measured cotinine) or exhaled (breath) carbon monoxide (CO).
Outcome measures
| Measure |
Control
n=952 Participants
Counseling from WTQL
|
Incentive
n=948 Participants
Counseling from WTQL; Financial incentive to participate
|
|---|---|---|
|
Abstinence From Smoking
|
131 Participants
|
205 Participants
|
SECONDARY outcome
Timeframe: Measured 6 months after enrollment at follow-up assessmentThis analysis will compare number of calls completed
Outcome measures
| Measure |
Control
n=952 Participants
Counseling from WTQL
|
Incentive
n=948 Participants
Counseling from WTQL; Financial incentive to participate
|
|---|---|---|
|
Engagement in Treatment
Zero Calls Taken
|
6 Participants
|
3 Participants
|
|
Engagement in Treatment
1 Call Taken
|
245 Participants
|
76 Participants
|
|
Engagement in Treatment
2 Calls Taken
|
179 Participants
|
113 Participants
|
|
Engagement in Treatment
3 Calls Taken
|
154 Participants
|
122 Participants
|
|
Engagement in Treatment
4 Calls Taken
|
165 Participants
|
199 Participants
|
|
Engagement in Treatment
5 Calls Taken
|
203 Participants
|
435 Participants
|
SECONDARY outcome
Timeframe: Measured 6 months after enrollmentThis analysis will quantify the costs of treatment for Control and Incentive conditions with regard to attaining 6-month abstinence. Project costs were allocated to three categories: 1) Service costs, including billed staff time for counseling and testing, as well as all incidentals connected with services; 2) Incentives and distribution costs; and 3) Service-related administrative costs, including promotion/marketing and staff time for administering the intervention. Costs of planning the project, grant administration, and research within the project are not included in the analysis.The outcome is the cost per quit in each treatment group. Cost per quit in each group was calculated by: 1) computing the grand total of costs for all participants in a given group; and 2) dividing the grand total for a given group by the number of successful quitters. As such, the cost per quit is a single value with no measure of dispersion.
Outcome measures
| Measure |
Control
n=952 Participants
Counseling from WTQL
|
Incentive
n=948 Participants
Counseling from WTQL; Financial incentive to participate
|
|---|---|---|
|
Cost-effectiveness
|
5193 U.S. Dollars
|
4108 U.S. Dollars
|
Adverse Events
Control
Incentive
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Stevens S. Smith, Ph.D.
University of Wisconsin School of Medicine and Public Health
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place