A Brief Lifestyle Modification Programme in Overweight Subjects With Obstructive Sleep Apnoea - Needs Assessment

Study Overview
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Brief Summary
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Obstructive sleep apnea (OSA) is a common chronic disease and associated with cardiovascular and neurocognitive sequelae. Overweight is a common, reversible risk factor of OSA, and the rapid rise in obesity worldwide may lead to increases in OSA and related adverse health outcomes. Weight-loss interventions, especially comprehensive lifestyle interventions, are associated with improvements in OSA severity, cardiometabolic comorbidities, and quality of life. However, the intensive nature of these programmes often pose a barrier to adherence. Furthermore, although there is strong evidence to support the value of mobile text messaging to promote physical activity and healthy eating in clinical and community settings, messaging has rarely been applied in interventions for overweight OSA subjects. The proposed study aims to examine the feasibility of a brief lifestyle modification programme that makes use of smartphone technology (WhatsApp or WeChat) to empower subjects to start doing simple and easy-to-do exercises that can be easily integrated into daily life for gradual lifestyle change.

Detailed Description
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Obstructive sleep apnea (OSA) is a common chronic disease and associated with cardiovascular and neurocognitive sequelae. Overweight is a common, reversible risk factor of OSA, and the rapid rise in obesity worldwide may lead to increases in OSA and related adverse health outcomes. Weight-loss interventions, especially comprehensive lifestyle interventions, are associated with improvements in OSA severity, cardiometabolic comorbidities, and quality of life. However, non-adherence is commonly seen in such lifestyle modification programmes. Such programmes are often intensive and pose a barrier to adherence. Researchers have suggested that programmes with fewer sessions may improve the completion rates. As yet, there have been no randomised trial assessing the feasibility and effectiveness of a brief theory-based lifestyle modification programme. Furthermore, although there is strong evidence to support the value of mobile text messaging to promote physical activity and healthy eating in clinical and community settings, messaging has rarely been applied in interventions for overweight OSA subjects. In Hong Kong, where smartphone penetration is extensive (89% in 2017), utilising messaging as an intervention tool may be especially valuable. The proposed study will examine the perceived burden and informational needs and preferences of overweight subjects with OSA, especially in relation to physical activity. The study will also examine the feasibility of a brief lifestyle modification programme that makes use of smartphone technology (WhatsApp or WeChat) to provide personalised support and empower subjects to start doing simple and easy-to-do exercises that can be easily integrated into daily life for gradual lifestyle change and weight reduction.

Official Title
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A Brief Motivational Enhancement Lifestyle Modification Programme to Reduce Body Weight in Overweight Subjects With OSA: Needs Assessment

Conditions
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Overweight, Obstructive Sleep Apnoea

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Aged 18 years or above; Performed sleep test in sleep laboratory; and Mentally fit to provide informed consent and answer self-administered questionnaire. Exclusion Criteria: Those on CPAP or oral appliance treatment; Diagnosed with psychiatric illness; or Unwilling to give informed consent.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Preference on physical activity | Outcome-based questions with categorical choices | Immediately after obtaining written consent | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Current physical activity practices | Outcome-based questions with categorical choices | Immediately after obtaining written consent | 
| Preference on programme contents and information | Outcome-based questions with categorical choices | Immediately after obtaining written consent | 
| Preference on m-Health information | Outcome-based questions with categorical choices | Immediately after obtaining written consent | 
| Daytime Sleepiness | Epworth Sleepiness Scale, ranged from 0 - 24 scores. The ESS score (the sum of 8 item scores, 0-3) can range from 0 to 24. The higher the ESS score, the higher that person's average sleep propensity in daily life. Score >10 is interpreted as excessive daytime sleepiness | Immediately after obtaining written consent | 
| Sleep quality | A single-item sleep quality scale; range from 0 -10; Higher score is interpreted as better sleep quality | Immediately after obtaining written consent | 
| Dietary consumption habits | Outcome-based questions with categorical choices | Immediately after obtaining written consent | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Lifestyle modification, Obstructive sleep apnoea, Overweight