Non-responders in a quitline evaluation are more likely to be smokers – a drop-out and long-term follow-up study of the Swedish National Tobacco Quitline

Conclusions:
Non-responders to a 12-month follow-up smoking cessation questionnaire in a quitline setting were more likely to be smokers 1.5–3 years later. We propose a conservative correction factor of 0.8 for self-reported abstinence in telephone-based cessation studies if the response rate is approximately 55–65 %.

Source: Epidemiologic Perspectives and Innovations - February 3, 2016 Category: Epidemiology Authors: Eva NohlertJohn ÖhrvikÁsgeir Helgason Source Type: research