Table 3 Key feasibility outcomes and the associated progression criteria
Go | Amend | Stop | |
|---|---|---|---|
Recruitment | |||
1. Screened/month | 10 or more | 5 to 9 | 4 or fewer |
2. Recruited/month | 7 or more | 4 to 6 | 3 or fewer |
3. % recruited of screened | 70% or more | 31% to 69% | Less than 30% |
Engagement | |||
4. Research visit (2 of 2) | 70% or more | 31% to 69% | Less than 30% |
5. Nurse counselling visit (at least 3 of 4 attended) | 70% or more | 31% to 69% | Less than 30% |
Adherence | |||
6. Adherence to drug allocation assignment | 80% or more | 50% to 79% | Less than 50% |
7. Adherence to cytisine taper | 80% or more | 50% to 79% | Less than 50% |
8. Study surveys completed | 80% or more | 50% to 79% | Less than 50% |
9. Log if cigarette use | 80% or more | 50% to 79% | Less than 50% |
10. Biochemical verification of smoking status | 80% or more | 50% to 79% | Less than 50% |
Retention | |||
11. Loss to follow up | Less than 20% | 20% to 50% | More than 50% |
Intervention Assessment | |||
12. Feasibility of nurse counselling visit (at least 3 visits offered) | 70% or more | 31% to 69% | Less than 30% |