cardiovascular diseases
Conditions
Interventions
sub-study 1 (All participants in sub-study 1 will take four times of bilateral non-mydriatic fundus photographs, including two times using traditional fundus camera (Canon CR-2 AF) and two times using
sub-study 4 (All participants in sub-study 4 will take repeated bilateral non-mydriatic fundus photographs and blood press measurement hourly from 8:00 am to 8:00 pm for three days. Basic information
sub-study 5 (Bilateral non-mydriatic fundus photography as well as blood pressure measurement will be scheduled for these participants before and after initiating anti-hypertension therapy. Fourteen f
Sponsors
Peking University Clinical Research Institute
Eligibility
Sex/Gender
All
Age
20 Years to 74 Years
Inclusion criteria
Inclusion criteria: Sub-study 1 & 4: 1. Men and women aged 20–74 years old. 2. No history of stroke or coronary heart disease 3. Signed informed consent. Sub-study 5: 1. Men and women aged 20–74 years old. 2. No history of stroke or coronary heart disease 3. Newly diagnosed hypertensive patients and is going to initiate antihypertensive drug treatment. 4. Signed informed consent.
Exclusion criteria
Exclusion criteria: Sub-study 1 & 5: 1. Patients with critical illness, such as malignant tumour or end-stage renal disease; 2. Patients with mental disease and cannot complete the examinations in the study; 3. Cannot bear the flashing light of fundus camera; 4. History of retinal laser therapy, cataract, blindness, or congenital miosis. Sub-study 4: 1. Patients with critical illness, such as malignant tumour or end-stage renal disease; 2. Patients with mental disease and cannot complete the examinations in the study; 3. Cannot bear the flashing light of fundus camera; 4. History of retinal laser therapy, cataract, blindness, or congenital miosis. 5. Cannot attending the three-day examinations.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ICC(same camera);C-index;correlation coefficient;ICC; | — |
Secondary
| Measure | Time frame |
|---|---|
| Mean difference (same camera);coefficient of correlation (same camera);Mean difference (different camera);coefficient of correlation (different camera);ICC; | — |
Countries
China
Contacts
Public ContactYangfeng Wu
Peking University Clinical Research Institute
Outcome results
None listed