To Test the Effectiveness of Different Incentive Models for Increasing the Follow-up Response Rate in the Current Smoker Subject Clinical Trial
Official title:
Effectiveness of Different Incentive Models in Booster up the Second Follow up Response Rate
Aim to test the effectiveness of different incentive models for increasing the follow-up response rate in the current smoker subject.
According to the Hong Kong Census and Statistic Department, 10.5% of the Hong Kong population
who aged 15 years or above are daily smokers (Thematic Household Survey Report - Report No.
59, 2016). The smoking prevalence was estimated from a thematic household survey that has
been conducted every 2 or 3 years. Another population-based survey related to tobacco control
is the Tobacco Control Policy-related Survey conducted by the Hong Kong Council on Smoking
and Health and the University of Hong Kong. Both surveys were in a cross-sectional design and
no follow-up was done. A cohort study with follow-up data could provide more insights for the
causal relationship. However, most people are not willing to complete follow-up survey and
the response rate is often low (Mellahi, 2016). The low survey response rate could lead to
statistically bias in the research funding (Pit, 2014). Therefore, cohort surveys need to
provide attractive monetary incentive to the interviewee to increase the response rate (Pit,
2014).
This study aims to assess and compare the 3-month response rate of a follow-up survey due to
different financial incentive schemes. The findings will be used for a feasibility assessment
of future cohort studies of evaluating tobacco control measures and public opinion, and
exploration of appropriate incentive scheme.
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