Clinical Characteristics of Patients With Sleep Apnea in Korea

Clinical Characteristics of Patients With Sleep Apnea in Korea: a Prospective Cohort Study

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04186078

Enrollment

1000

Registered

2019-12-04

Start date

2019-11-11

Completion date

2046-12-01

Last updated

2026-04-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep Apnea Syndromes

Brief summary

Sleep-disordered breathing including obstructive sleep apnea (OSA) is an extremely common medical disorder associated with important morbidity. The purpose of this study is to understand the clinical features and course of patients with sleep apnea in Korea. Participants who are suspected of sleep apnea due to symptoms such as snoring, witnessed apneas, waking up with a choking sensation, excessive sleepiness, non-restorative sleep, difficulty initiating or maintaining sleep, fatigue or tiredness, and morning headache will be prospectively recruited at the outpatient clinic of Seoul National University Hospital. After polysomnography (PSG) or respiratory polygraphy, patients with sleep apnea including OSA and central sleep apnea (CSA) will be followed regularly. Participants not having sleep apnea (apnea-hypopnea index \< 5/hour) will only have a baseline visit. For only participants with the informed consent of donating blood, their blood samples will be collected and stored in the Seoul National University Hospital-Human Biobank (SNUH-HUB).

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

19 Years to No maximum

Inclusion criteria

* Participants who are suspected of sleep apnea due to symptoms such as snoring, witnessed apneas, waking up with a choking sensation, excessive sleepiness, non-restorative sleep, difficulty initiating or maintaining sleep, fatigue or tiredness, and morning headache

Exclusion criteria

* None

Design outcomes

Primary

Measure	Time frame	Description
The number of participants with adherence to positive airway pressure (PAP) therapy	Median follow up of 2 years	PAP adherence is defined as the use of PAP therapy for ≥4 h/night on ≥70% of nights

Secondary

Measure	Time frame	Description
The number of deaths	Median follow up of 15 years	The number of deaths
The cause of death	Median follow up of 15 years	The cause of death

Countries

South Korea

Contacts

CONTACTJaeyoung Cho, M.D.

apricot6@snu.ac.kr+82-2-2072-2503

PRINCIPAL_INVESTIGATORJaeyoung Cho, M.D.

Seoul National University Hospital

Outcome results