NCT05077748Completed
An 18-year Follow-up Study on OSA in a Population-based Cohort
An 18-year Follow-up Study on Obstructive Sleep Apnoea in a Population-based Cohort
Source: ClinicalTrials.gov · Last updated 15 Dec 2025
Brief summary (registry, in English)
Our research team has established a polysomnography (PSG) quantified population-based paediatric sleep cohort in 2003 for a childhood OSA prevalence study. Subjects were recruited from 13 randomly selected primary schools. All subjects from this original cohort will be invited to join this 18-year follow-up study to repeat the following data collection: questionnaires, anthropometric measurement, sleep study, 24-hour ambulatory blood pressure (ABP) measurement, echocardiography and neurocognitive assessment.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 202 (actual)
- First submitted
- 2 Oct 2021
- Start date
- 20 Oct 2021
- Primary completion date
- 30 Sept 2025
- Lead sponsor
- Chinese University of Hong Kong
- Diseases
- High blood pressure
- NCT number
- NCT05077748
What you commit to
- Study type: Observational
- Participants enrolled: 202
- From 20 Oct 2021 to the primary completion date, 30 Sept 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Subjects taking medications that may affect sleep, upper airway patency or blood pressure (for example sedatives, stimulants, antihistamines, and cough medicine) within a week from recruitment will also be rescheduled to participate when they are free from medication use for at least 2 weeks.
Other illness
- Neuromuscular disease
- Severe chronic lung disease with documented hypoxaemia or awake oxygen saturation \<92%
- Chronic respiratory failure (unrelated to OSA)
- Acquired upper airway disease/obstruction
- Craniofacial abnormalities (e.g. secondary to trauma and malignancy)
- Other arrangement:
- Subjects who have any respiratory illness within 2 weeks of the scheduled follow-up visit will have their assessment re-arranged until they have fully recovered.
- Subjects with hypertension and are on anti-hypertensive therapy are allowed to continue on their medication and the information will be obtained and recorded during data collection.
Other
- Pathological central apnoea
Who the study is looking for
- \- Subjects participants from the 2003 cohort
Age in the registry: 18 years to 35 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Prince of Wales Hospital Coordinator of this site? Confirm its status | Hong Kong | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.