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| ID | Type | Description | Link |
|---|---|---|---|
| REC/24-25/0554 | Other Identifier | Hong Kong Baptist University |
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| Name | Class |
|---|---|
| The University of Hong Kong | OTHER |
| Chinese University of Hong Kong | OTHER |
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This study will employ a randomized controlled trial design to investigate the effects of a brief behavioral intervention that includes (1) self-recording of a regularity-focused sleep diary, (2) 10 strategies for maintaining sleep regularity, and (3) a sleep education information sheet on the maintenance of sleep regularity in young adults during the Christmas break.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Brief behavioural intervention group | Experimental | Participants will receive a brief behavioral intervention comprising a regularity-focused sleep diary, 10 tips for maintaining sleep regularity, and a sleep education information sheet. The regularity-focused sleep diary is designed to emphasize in-bed and out-of-bed times, drawing participants' attention to their sleep regularity. Participants will be provided with a yellow marker to highlight their sleep periods. The 10 tips for maintaining sleep regularity include establishing a consistent out-of-bed time, using natural light to regulate the circadian clock, adjusting mealtimes, etc. The sleep education sheet contains information on reducing caffeine intake in the afternoon, limiting screen time before bed, etc. |
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| Health education control group | Placebo Comparator | Participants will receive general health information without specific emphasis on sleep, such as weight control, smoking cessation, etc. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Brief behavioural intervention | Behavioral | Participants will receive a brief behavioural intervention comprising a regularity-focused sleep diary, 10 tips for maintaining sleep regularity, and a sleep education information sheet. The regularity-focused sleep diary is designed to emphasize in-bed and out-of-bed times, drawing participants' attention to their sleep regularity. Participants will be provided with a yellow marker to highlight their sleep periods. The 10 tips for maintaining sleep regularity include establishing a consistent out-of-bed time, using natural light to regulate the circadian clock, adjusting mealtimes, etc. The sleep education sheet contains information on reducing caffeine intake in the afternoon, limiting screen time before bed, etc. |
| Measure | Description | Time Frame |
|---|---|---|
| Sleep regularity | Sleep regularity will be measured by the validated Chinese version of sleep regularity questionnaire (SRQ), which shows excellent reliability and validity. SRQ consists of six items focusing on two dimensions, circadian regularity and sleep continuity regularity. Each item is rated on a scale ranging from 0 (not at all) to 4 (very much) in terms of the degree to which they agreed with each statement, with higher scores indicating higher sleep regularity. | From baseline assessment to the end of intervention at 3 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Severity of depression | The severity of depression will be measured by the Patient Health Questionnaire - 9 item (PHQ-9). It asks participants how often they experienced depressive symptoms over the past 2 weeks. PHQ-9 comprises 5 categories: 0-4 indicates minimal depression, 5-9 mild depression, 10-14 moderate depression, 15-19 moderately severe depression, and ≥20 severe depression. | From baseline assessment to the end of intervention at 3 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Danny YU, PhD | Contact | 852-34115309 | dannyu@hkbu.edu.hk |
| Name | Affiliation | Role |
|---|---|---|
| Danny YU, PhD | Hong Kong Baptist University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hong Kong Baptist University | Kowloon City | Kowloon Tong | Hong Kong |
Study protocol, statistical analysis plan, and analytic code will be deposited in an open registry when the study is published.
The data will be available after the publication of the main results for 3 years.
Study protocol, statistical analysis plan, and analytic code will be deposited in an open registry when the study is published for academic use only.
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Due to the nature of the intervention, participants cannot be blinded. However, they will be unaware of the true aim of the study and will be informed that the intervention is intended to enhance overall well-being. Outcome measures will be administered by research personnel who are blinded to group allocation.
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| Health education | Behavioral | Participants will receive general health information without specific emphasis on sleep, such as weight control, smoking cessation, etc. |
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| Severity of anxiety | The severity of anxiety will be measured by the Generalized Anxiety Disorder - 7 item (GAD-7). The cut-off scores of GAD-7 are: 0-4 indicates minimal anxiety, 5-9 mild anxiety, 10-14 moderate anxiety, and ≥15 severe anxiety. | From baseline assessment to the end of intervention at 3 weeks |
| Work and social functioning | Work and social functioning will be assessed using the Work and Social Adjustment Scale (WSAS), a 5-item instrument in which each item is rated on a 9-point Likert scale (0 = not at all, 8 = very severely). The total WSAS score ranges from 0 to 40, with lower scores indicating better functioning. | From baseline assessment to the end of intervention at 3 weeks |