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%)
Female 1052 (60.4%)
Age <60 128 (7.4%)
60-69 445 (25.6%)
70-79 761 (43.7%)
80+ 407 (23.4%)
Ethnicity White 1698 (97.5%)
Other 43 (2.5%)
Index of multiple deprivation Quintile 1 (most deprived) 151 (8.7%)
Quintile 2 432 (24.8%)
Quintile 3 326 (18.7%)
Quintile 4 447 (25.7%)
Quintile 5 (least deprived) 382 (21.9%)
Education status Group1 (No formal qualifications) 953 (54.7%)
Group 2 (GCSE, Alevel, NVQ 1-3) 469 (26.9%)
Group 3 (1st or higher degree, NVQ 4-5) 317 (18.2%)
eGFR at study entry Mean (SD) 52.5 (10.4)
> 60 418 (24.0%)
45-59 911 (52.3%)
30-44 386 (22.2%)
<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%)
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%)
No hypertension 213 (12.2%)
Number of antihypertensive medications None 315 (18.1%)
1 615 (35.3%)
2 488 (28.0%)
3 or more 323 (18.6%)
Taking RAASi Yes 1123 (64.5%)
No 618 (35.5%)
History of CVD Yes 592 (34.0%)
No 1149 (66.0%)
Smoking Current 81 (4.7%)
Ex-smoker 866 (49.7%)
Never 794 (45.6%)
Alcohol No alcohol 711 (40.8%)
Drinking within recommended limits 877 (50.4%)
Drinking above recommended limits 65 (3.7%)
BMI Normal or underweight 353 (20.3%)
Overweight 738 (42.4%)
Obese 650 (37.3%)
Central obesity Yes 1480 (85.0%)
No 260 (14.9%)
Total chol:HDL ratio >4.5 306 (17.6%)
Aware of CKD diagnosis Yes 1026 (58.9%)
No 715 (41.1%)

Abbreviations:

CKD chronic kidney disease.

BP blood pressure.

eGFR estimated Glomerular Filtration Rate.

GCSE General certificate of Secondary Education.

A level Advanced level.

NVQ National Vocational Qualification.

RAASi renin-angiotensin aldosterone system inhibitors.

CVD cardiovascular disease.

Fraser et al.

Fraser et al. BMC Family Practice 2013 14:88   doi:10.1186/1471-2296-14-88

Open Data