1. Internet-based interventions
Robert West
Professors of Health Psychology
University College London

2. This talk Why internet intrerventions?
Types of internet-based intervention
Evidence from RCTs

3. Why internet interventions?
Potentially low unit cost
Potentially wide reach
24-hour accessibility from multiple locations
Opportunities for tailoring
Guaranteed fidelity to protocol
Continuous data gathering to inform development
Capacity to retain identity on the system

4. Types of internet-based intervention
Internet-only vs internet plus
Generic vs medication-specific
Fully automated vs partially automated
Tailored vs untailored
Involving users vs not involving users

5. Evidence from RCTs

6. RealU
Website based on social cognitive and problem behaviour therapy; logs health/life-style habits, has interactive quiz and feedback, links to life-style magazine, provision of weekly, tailored s from peer coaches; provision of financial incentive for participation

7. Happy Endings Daily e-mail to direct to webpage; pre-recorded
daily audio message (log-on call) and up to three text messages, proactive log-off call in evening to assess smoking and provide relapse prevention information when necessary, plus directs to craving helpline; fully automated tunnel design; participants received reminders

8. CHESS SCRP Online system with log in leading to tailored
feedback, information provision, support centre providing web-based cognitive–behavioural techniques (chatroom/ask the expert) and folder to carry out emotional writing paradigm/keep diary; participants received reminders

9. QSN
Tailored (tunnel design), interactive webpage providing educational information, cessation preparation, personal quit plan and date, behavioural tasks, thought and mood
management, peer support (chatroom), expert advice and prompts

10. Internet vs non-internet control

11. Tailored vs untailored website

12. Efficacy at 6 month-follow-up

13. Internet vs ‘human’ support

14. Enhanced internet vs standard internet

15. Conclusions Some evidence of efficacy but wide variability
Unclear what are most useful features
Problems with uptake, adherence and equity
Open-access ‘technological’ approach to development will speed progress
Apply modification
Monitor result