Methods |
Setting: Health Maintenance Organisation, USA
Recruitment: Health plan members without current smoking cessation benefit, recruited for a study giving access to coverage |
Participants |
388 smokers; 34% M, 67% age 40+, 84% smoked < a pack/day |
Interventions |
1. Coverage for TC and pharmacotherapy (bupropion or NRT, USD 15 co‐pay)
2. Coverage for TC; coverage for pharmacotherapy (bupropion or NRT, USD 15 co‐pay) only if enrolled in TC
3. Coverage for pharmacotherapy only (control) |
Outcomes |
Abstinence at 6 m (7‐day PP)
Validation: none |
Notes |
Not included in MA, results discussed separately, alongside trials for TC as adjunct to pharmacotherapy |
Risk of bias |
Bias |
Authors' judgement |
Support for judgement |
Random sequence generation (selection bias) |
Unclear risk |
Randomised, method not described |
Allocation concealment (selection bias) |
Unclear risk |
No details given |
Blinding of outcome assessment (detection bias)
All outcomes |
High risk |
Self‐reported outcomes from participants not blinded to treatment condition. Level of personal contact differed between arms |
Incomplete outcome data (attrition bias)
All outcomes |
Low risk |
Number lost to follow‐up not described, all participants included in analyses |