Table 2.
Characteristics of studies of retinal changes in patients with hypertensive retinopathy. Values are numbers (percentages) unless stated otherwise
|
Retinal changes
|
||||||
|---|---|---|---|---|---|---|
| Study | No of participants | Age range (years) | Participants with hypertension* | Focal arteriolar narrowing (%) | Arteriovenous nicking†(%) | Haemorrhages and exudates (%) |
| Cardiovascular health study14 | 2056 | 69-97 | 1424 (59) | 9.6 | 7.6 | 8.3 |
| Beaver Dam eye study1 | 4311 | 43-84 | 1479 (34) | 13.5 | 2.2 | 7.8 |
| Atherosclerosis risk in communities study‡15 | 10 358 | 48-73 | 4595 (44) | 14.9 | 14.3 | 7.0 |
| Blue Mountains eye study16 | 3614 | 43-86 | 1656 (46) | 7.9 | 8.9 | Not reported |
| Blue Mountains eye study12 | 3275 | ≥49 | 1447 (44) | Not reported | Not reported | 9.9 |
*
Use of antihypertensive drugs or a history of hypertension and blood pressure ≥140/90 mm Hg in cardiovascular health study and atherosclerosis risk in communities study and ≥160/95 mm Hg in the Beaver Dam eye study and Blue Mountains eye study.
†
Different definitions used.
‡
Included patients with diabetes.