Screening and Educating Emergency Department Attendees on Health-risk Behaviours

The participants will also be asked to choose the goal that they consider easiest to achieve and encouraged to quit health-risk behaviours. The research assistant will assist in achieving the participant's health-related goals by sending WhatsApp/WeChat messages or via telephone calls once per week for the first 6 months.

The participants will be simply advised to modify their health-risk behaviours and/or adopt a healthy lifestyle practice. In addition, the research assistant will send regular SMS messages to the participants at a similar frequency to the intervention group, but these messages will contain only general health advice.