This study will be a randomized controlled trial on the effects of group-based LM as an intervention for depression. Prior to all study procedures, an online informed consent (with phone support) will be obtained from potential participants. Around 90 eligible participants will be randomly assigned to either the LM intervention with self-tracking tools (LM/S), pure LM intervention (LM), or care-as-usual (CAU) control group in a ratio of 1:1:1. The randomization will be performed by an independent assessor using a computer-generated list of numbers. In order to obtain unbiased data with respect to the participants' attitudes and behaviors, incomplete disclosure will be used to withhold the self-tracking component in this trial. Participants in the two LM groups will receive six weekly group lifestyle modification sessions (\~2 hours each) at the Chinese University of Hong Kong (an online approach will be adopted if face-to-face sessions are not possible due to COVID-19). The group treatment will primarily be delivered by clinical psychology trainees under the supervision of a clinical psychologist and other healthcare professionals such as a dietitian and a fitness trainer. The CAU group will continue receiving the routine care as usual and be given a smartphone-based LM intervention after the completion of follow-up assessments. Both the treatment groups and control group will complete a set of online questionnaires before the treatment commences, immediately after treatment, and 12 weeks after the treatment sessions are completed. In addition, participants in the LM/S group will complete a set of self-developed survey questions related to lifestyle and mood on a daily basis.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
90
Lifestyle intervention including diet, sleep, exercise, relaxation and mindfulness
The Chinese University of Hong Kong
Shatin, Hong Kong
Change in the Patient Health Questionnaire (PHQ-9)
The PHQ-9, a 20-item questionnaire used for screening, diagnosing, monitoring and measuring the severity of depression, which scores each of the nine DSM-IV criteria as "0" (not at all) to "3" (nearly every day).
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
Change in the Generalized Anxiety Disorder 7-Item Scale (GAD-7)
The GAD-7, a 7-item questionnaire used for screening, diagnosing, monitoring, and measuring the severity of anxiety over the past two weeks on a 4-point scale, "0" (not at all) to "4" (nearly every day).
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
Change in Insomnia Severity Index (ISI)
ISI is a 7-item scale designed to evaluate perceived insomnia severity. Ratings on the 5-point Likert scale are obtained on the perceived severity of sleep-onset, sleep-maintenance, early morning awakening problems, satisfaction with current sleep pattern, interference with daily functioning, noticeably of impairment attributed to the sleep problem, and level of distress caused by the sleep problem.
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
Change in the World Health Organization Quality of Life Instruments (WHOQOL-BREF)
WHOQOL-BREF consists of 24 items assessing perception of quality of life (QoL) in four domains, including physical health, psychological, social relationships, and environment, and two items on overall QoL and general health. The domain scores were transformed into a linear scale between 0 and 100 following the scoring guidelines. A higher score indicated a better QoL.
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
Change in the Health-Promoting Lifestyle Profile (HPLP II)
The 52-item HPLPII is composed of a total scale and six subscales to measure behaviors in the theorized dimensions of health-promoting lifestyle: spiritual growth, interpersonal relations, nutrition, physical activity, health responsibility, and stress management.
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
Change in the Sheehan Disability Scale (SDS)
SDS is a brief, 5-item self-report tool that assesses functional impairment in work/school, social life, and family life
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
Change in the International Physical Activities Questionnaire - Chinese version (IPAQ-C)
Participants' sitting time, walking time and moderate and vigorous physical activity are assessed by 5 questions from a short form of the International Physical Activity Questionnaire - Chinese version a short form of the IPAQ-C.
Time frame: Baseline, immediately after treatment, and 12 weeks after the treatment sessions are completed
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