Table 1 Characteristics of people in the RRID study
|  | Category | Total n = 1741 (numbers are n (% of total) unless otherwise stated) |
|---|---|---|
Gender | Male | 689 (39.6%) |
| Â | Female | 1052 (60.4%) |
Age | <60 | 128 (7.4%) |
| Â | 60-69 | 445 (25.6%) |
| Â | 70-79 | 761 (43.7%) |
| Â | 80+ | 407 (23.4%) |
Ethnicity | White | 1698 (97.5%) |
| Â | Other | 43 (2.5%) |
Index of multiple deprivation | Quintile 1 (most deprived) | 151 (8.7%) |
| Â | Quintile 2 | 432 (24.8%) |
| Â | Quintile 3 | 326 (18.7%) |
| Â | Quintile 4 | 447 (25.7%) |
| Â | Quintile 5 (least deprived) | 382 (21.9%) |
Education status | Group1 (No formal qualifications) | 953 (54.7%) |
| Â | Group 2 (GCSE, Alevel, NVQ 1-3) | 469 (26.9%) |
| Â | Group 3 (1st or higher degree, NVQ 4-5) | 317 (18.2%) |
eGFR at study entry | Mean (SD) | 52.5 (10.4) |
| Â | > 60 | 418 (24.0%) |
| Â | 45-59 | 911 (52.3%) |
| Â | 30-44 | 386 (22.2%) |
| Â | <30 | 26 (1.5%) |
Albuminuria | No albuminuria | 1456 (83.6%) |
|  | Microalbuminuria (≥2.5 mg/mmol M, ≥3.5 mg/mmol F but <30 mg/mmol) | 239 (13.7%) |
|  | Macroalbuminuria (≥30 mg/mmol) | 41( 2.4%) |
Diabetes | Yes | 294 (16.9%) |
| Â | No | 1447 (83.1%) |
Hypertension | On antihypertensive medication | 1426 (81.9%) |
|  | BP > 140/90 at study assessment, but not on antihypertensive medication | 102 (5.9%) |
| Â | No hypertension | 213 (12.2%) |
Number of antihypertensive medications | None | 315 (18.1%) |
| Â | 1 | 615 (35.3%) |
| Â | 2 | 488 (28.0%) |
| Â | 3 or more | 323 (18.6%) |
Taking RAASi | Yes | 1123 (64.5%) |
| Â | No | 618 (35.5%) |
History of CVD | Yes | 592 (34.0%) |
| Â | No | 1149 (66.0%) |
Smoking | Current | 81 (4.7%) |
| Â | Ex-smoker | 866 (49.7%) |
| Â | Never | 794 (45.6%) |
Alcohol | No alcohol | 711 (40.8%) |
| Â | Drinking within recommended limits | 877 (50.4%) |
| Â | Drinking above recommended limits | 65 (3.7%) |
BMI | Normal or underweight | 353 (20.3%) |
| Â | Overweight | 738 (42.4%) |
| Â | Obese | 650 (37.3%) |
Central obesity | Yes | 1480 (85.0%) |
| Â | No | 260 (14.9%) |
Total chol:HDL ratio | >4.5 | 306 (17.6%) |
Aware of CKD diagnosis | Yes | 1026 (58.9%) |
| Â | No | 715 (41.1%) |