Characteristics of the sample
Visual acuity measured | Visual acuity not measured | NDNS participants visited by a nurse | NDNS participants not visited by a nurse | |
Number | 1487 | 39 | 1526 | 534 |
Age mean (SD) | 78.2 (8.0) | 82.9 (8.3) | 78.3 (8.0) | 79.7 (8.0) |
% | % | % | % | |
Female | 49.2 | 64.1 | 49.5 | 63.5 |
Living in an institution | 22.6 | 69.2 | 23.8 | 12.2 |
Education level, secondary or higher | 38.9 | 18.2 | 38.7 | 27.2 |
Social class non-manual | 44.9 | 38.7 | 44.8 | 38.7 |
Sight problems | 28.7 | 30.8 | 28.8 | 25.7 |
Using spectacles | 92.7 | 71.8 | 92.2 | 84.6 |