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Table 1 Schedule of enrollment and follow-up assessments

From: A medical peer-delivered intervention comprising brief motivational interviewing via instant-messaging interaction to reduce drug misuse among youth in Hong Kong: A protocol for a randomised controlled trial

Assessment Time-point  
Baseline 1 week 1 Month 3 Months 6 Months 9 months 12 Months
Informed consent for participants ×       
Eligibility screen for participants ×       
Telephone counselling ×       
Sociodemographic characteristics ×       
Randomization ×       
Intervention × (twice per week)   
Self-reported drug misuse × × × × × × ×
Attempt to quit × × × × × × ×
Chinese drug involvement scale ×     ×   ×
Drug misuse-related knowledge ×     ×   ×
Attitudes towards the drug misuse ×     ×   ×
Contemplation ladder × × × × × × ×
TCU MOTForm ×    × × × ×
Adolescent relapse coping questionnaire ×    × × × ×
EQ-5D-5 L level ×     ×   ×
Center for Epidemiologic Studies Depression Scale ×     ×   ×
Rosenberg self-esteem scale ×     ×   ×
Referral need and results × × × × × × ×