Browsing by Author "Luk, Tzu Tsun"
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- ItemChat-based instant messaging support combined with brief smoking cessation interventions for Chinese community smokers in Hong Kong: Rationale and study protocol for a pragmatic, cluster-randomized controlled...(0000-00-00) Luk, Tzu Tsun; Li, William Ho Cheung; Cheung, Derek Yee Tak; Wong, Sze Wing; Kwong, Antonio Cho Shing; Lai, Vienna Wai Yin; Chan, Sophia Siu-Chee; Lam, Tai Hing; Wang, Man PingBACKGROUND Novel approaches to engage community smokers in smoking cessation are needed as smokers typically lack motivation to quit or use evidence based tobacco dependence treatment Mobile instant messaging apps e g WhatsApp Facebook Messenger are widely used but under studied as a mobile health modality for delivering smoking cessation support This paper presents the rationale and study design of a trial which aims to evaluate the effectiveness of a chat based intervention using mobile instant messaging combined with brief interventions for community smokers METHODS This is a two arm parallel accessor blinded pragmatic cluster randomized controlled trial on an estimated 1172 daily cigarette smokers aged 18 years proactively recruited from 68 community sites cluster throughout Hong Kong Subjects in intervention group received three months of chat based instant messaging support guided by acceptance and commitment therapy and other behavioural change techniques integrated with brief advice and active referral to a smoking cessation service using the AWARD Ask Warn Advise Refer Do it again intervention model Control group received brief advice to quit plus a self help booklet at baseline Outcomes were assessed at 1 2 3 and 6 month after baseline The primary outcome is abstinence validated by exhaled carbon monoxide Under4 ppm and salivary cotinine Under10 ng mL at 6 month after baseline Primary analyses will be based on intention to treat COMMENTS This is the first trial examining the effectiveness of a chat based cessation support programme combined with brief interventions in promoting abstinence The intervention model can be adapted for other behavioural change treatments and more advanced digital smoking cessation intervention
- ItemShort version of the Smartphone Addiction Scale in Chinese adults: Psychometric properties, sociodemographic, and health behavioral correlates.(0000-00-00) Luk, Tzu Tsun; Wang, Man Ping; Shen, Chen; Wan, Alice; Chau, Pui Hing; Oliffe, John; Viswanath, Kasisomayajula; Chan, Sophia Siu-Chee; Lam, Tai HingBACKGROUND AND AIMS Problematic smartphone use PSU is an emerging but understudied public health issue Little is known about the epidemiology of PSU at the population level We evaluated the psychometric properties of the Smartphone Addiction Scale Short Version SAS SV and examined its associated sociodemographic factors and health behaviors in Chinese adults in Hong Kong METHODS A random sample of 3 211 adults aged 18 years mean SD 43 3 15 7 45 3 men participated in a population based telephone survey in Hong Kong and completed the Chinese SAS SV Multivariable linear regressions examined the associations of sociodemographic factors health behaviors and chronic disease status with SAS SV score Data were weighted by age sex and education attainment distributions of the Hong Kong general population RESULTS The Chinese SAS SV is internally consistent Cronbach s 844 and stable over 1 week intraclass correlation coefficient 76 p Under 001 Confirmatory factor analysis supported a unidimensional structure established by previous studies The weighted prevalence of PSU was 38 5 95 confidence interval 36 9 40 2 Female sex younger age being married cohabitated or divorced separated vs unmarried and lower education level were associated with a higher SAS SV score all ps Under 05 Current smoking weekly to daily alcohol drinking and physical inactivity predict greater PSU after controlling for sociodemographic factors and mutual adjustment DISCUSSION AND CONCLUSIONS The Chinese SAS SV was found valid and reliable for assessing PSU in Hong Kong adults Several sociodemographic and health behavioral factors were associated with PSU at the population level which may have implication for prevention of PSU and future research