Prevalence of diabetic retinopathy (DR) in patients diagnosed with diabetes mellitus after the age of 70. Association between DR and potential predictive variables
| DR (+) (n = 21) | DR (−) (n = 129) | Significance level | |||
|---|---|---|---|---|---|
| Duration of diabetes mellitus (years): |
p < 0.007 | ||||
| Median Range | 5.0 2.0–10.0 | 3.5 0.5–16.4 | |||
| Treatment regimen (n (%)): |
p < 0.05 | ||||
| Insulin | 3 (14) | 3 (2) | |||
| Oral agents | 12 (57) | 67 (52) | |||
| Diet only | 6 (33) | 59 (45) | |||
| HbA1clevels (%) (mean (SD)) | 7.49 (1.45) | 7.08 (1.15) | NS | ||
| HbA1c levels (n (%)): |
NS | ||||
| > 7% | 11 (61) | 65 (51) | |||
| < 7% | 7 (39) | 62 (49) | |||
| Hypertension (n (%)) | 11 (58) | 60 (47) | NS | ||
| Sex (n (%)): |
NS | ||||
| Male | 8 (38) | 50 (39) | |||
| Female | 13 (68) | 79 (61) | |||
DR (+) = patients with DR; DR (−) = patients without DR.