An Observational Study of Natural History of Cardiovascular Diseases

Recruiting

Phase N/A Results N/A

Eligibility Criteria

Inclusion Criteria

- Participants who underwent self-selected, private screening program held by Life Line Screening
- Adult participants over the age of 20
- Participants who filled in appropriate health questionnaire and signed relevant consent part of their questionnaire
- Cohort observation cases: participants with significant carotid artery disease (>50% stenosis) detected by duplex ultrasound and/or AF
- Cohort observation controls: Participants without CAS detected by Duplex ultrasound or AF

Exclusion Criteria

- Those who are unable to give informed consent
- Participants under 20 years old
- Participants who filled in the health questionnaire incompletely