Baseline characteristics for the study population, at age 60 observed between 2000 and 2018
| Characteristics | |
| N | 1 094 928 |
| Female % (N) | 50.4 (551 390) |
| Achieved education, % (N) | |
| Lowest (primary school) | 29.1 (318 936) |
| Middle (high school/vocational education) | 43.6 (477 116) |
| Highest (higher education) | 27.3 (298 876) |
| Household income, % (n) | |
| Lowest | 32.7 (358 396) |
| Middle | 33.6 (367 485) |
| Highest | 33.7 (369 047) |
| Eye comorbidities, % (n) | |
| Retinal vein occlusion | 0.1 (1400) |
| Glaucoma | 1.3 (14 536) |
| Cataract | 1.9 (21 337) |
| Comorbidities, % (n) | |
| Arterial hypertension | 19.4 (212 437) |
| Diabetes | 6.7 (73 766) |
| Ischaemic heart disease | 5.9 (64 893) |
| Rheumatic disorder | 4.1 (44 465) |
| Atrial fibrillation | 2.1 (23 529) |
| Stroke | 2.0 (22 012) |
| Myocardial infarction | 2.0 (21 586) |
| Congestive heart failure | 1.3 (13 793) |
| Peripheral artery disease | 1.2 (13 598) |
| Venous thromboembolism | 1.3 (13 991) |
| Liver disease | 1.1 (11 675) |
| Renal disease | 0.8 (9275) |
| Heart valve diseases | 0.2 (2656) |