Comparison of prevalence of categorical measures in 2003 and 2009/2010*
| 2003 | 2009–2010 | χ2 Test | ||||
|---|---|---|---|---|---|---|
| Variable | Category | Number | Per cent | Number | Per cent | p Value |
| All | Aged 16+ | 7850† | 100.0 | 6046† | 100.0 | − |
| Age | 16–34 | 2425 | 31.0 | 1847 | 30.6 | 0.44 |
| 34–54 | 2790 | 35.7 | 2129 | 35.3 | ||
| 55–64 | 1126 | 14.4 | 886 | 14.7 | ||
| 65–74 | 813 | 10.4 | 639 | 10.6 | ||
| 75+ | 662 | 8.5 | 539 | 8.9 | ||
| Missing | 0 | – | 0 | – | ||
| Ethnicity | White | 7226 | 92.5 | 5244 | 90.7 | <0.001 |
| South Asian | 332 | 4.3 | 243 | 4.2 | ||
| Black | 144 | 1.8 | 154 | 2.7 | ||
| Other | 108 | 1.4 | 139 | 2.4 | ||
| Missing | 0 | – | 0 | – | ||
| Sex | Male | 3795 | 48.6 | 2961 | 49.0 | 0.80 |
| Female | 4020 | 51.4 | 3080 | 51.0 | ||
| Missing | 0 | – | 0 | – | ||
| Qualification | Degree | 1375 | 17.6 | 1295 | 22.5 | <0.001 |
| Below degree | 4551 | 58.3 | 3296 | 57.0 | ||
| None | 1874 | 24.0 | 1191 | 20.6 | ||
| Missing | 11 | – | 3 | – | ||
| NS-SEC | Highest | 2514 | 33.7 | 1894 | 34.8 | 0.43 |
| Middle | 1674 | 22.4 | 1203 | 22.1 | ||
| Lowest | 3273 | 43.9 | 2343 | 43.1 | ||
| Missing | 350 | – | 345 | – | ||
| Car ownership | Yes | 6460 | 82.7 | 4728 | 81.7 | 0.17 |
| No | 1348 | 17.3 | 1056 | 18.3 | ||
| Missing | 2 | – | 1 | – | ||
| Tenure | Own | 5878 | 75.4 | 3955 | 68.5 | <0.001 |
| Rent | 1914 | 24.6 | 1817 | 31.5 | ||
| Missing | 11 | – | 13 | – | ||
| Smoking | Current | 1960 | 25.2 | 1210 | 21.0 | <0.001 |
| Ex | 1877 | 24.1 | 1429 | 24.8 | ||
| Never | 3951 | 50.7 | 3126 | 54.2 | ||
| Missing | 22 | – | 20 | – | ||
| Body mass index | Normal/underweight (<25 kg/m2) | 2867 | 39.2 | 1956 | 36.8 | <0.001 |
| Overweight (25–30 kg/m2) | 2868 | 39.2 | 2047 | 38.5 | ||
| Obese (>30 kg/m2) | 1587 | 21.7 | 1314 | 24.7 | ||
| Missing | 489 | – | 469 | – | ||
| Waist circumference | Low (<94 cm male, <80 cm female) | 3060 | 39.8 | 2120 | 37.1 | <0.001 |
| High (94–102 cm male, 80–88 cm female) | 1929 | 25.1 | 1347 | 23.6 | ||
| Very High (>102 cm male, >88 cm female) | 2703 | 35.1 | 2242 | 39.3 | ||
| Missing | 118 | – | 77 | – | ||
| Doctor-diagnosed diabetes | Yes | 305 | 3.9 | 322 | 5.3 | <0.001 |
| No | 7504 | 96.1 | 5715 | 94.7 | ||
| Missing | 6 | – | 2 | – | ||
| Survey-diagnosed diabetes | Yes (HBA1c ≥6.5%) | 296 | 3.8 | 316 | 5.5 | <0.001 |
| No (HBA1c <6.5%) | 7401 | 96.2 | 5417 | 94.5 | ||
| Missing | 113 | – | 52 | – | ||
| Total diabetes | Yes | 406 | 5.2 | 446 | 7.4 | <0.001 |
| No | 7405 | 94.8 | 5585 | 92.6 | ||
| Missing | 0 | – | 0 | – | ||
| Doctor-diagnosed hypertension | Yes | 2118 | 27.2 | 1501 | 25.0 | 0.003 |
| No | 5662 | 72.8 | 4527 | 75.0 | ||
| Missing | 36 | – | 10 | – | ||
| Survey-diagnosed hypertension | Yes | 2065 | 31.5 | 1545 | 29.2 | 0.02 |
| No | 4499 | 68.5 | 3744 | 70.8 | ||
| Missing | 1246 | – | 496 | – | ||
| Total hypertension | Yes | 2866 | 36.7 | 2062 | 34.2 | 0.004 |
| No | 4933 | 63.3 | 3968 | 65.8 | ||
| Missing | 12 | – | 0 | – | ||
| eGFR CKDEPI | <45 (mL/min/1.73 m2) | 142 | 1.8 | 81 | 1.4 | 0.07 |
| <60 (mL/min/1.73 m2) | 444 | 5.7 | 303 | 5.2 | 0.26 | |
| Missing | 0 | – | 0 | – | ||
| eGFR MDRD | <45 (mL/min/1.73 m2) | 146 | 1.9 | 80 | 1.4 | 0.03 |
| <60 (mL/min/1.73 m2) | 521 | 6.7 | 349 | 6.0 | 0.13 | |
| Missing | 0 | – | 0 | – | ||
Bold typeface indicates significance at p<0.05.
*Weighted for non-response (unless stated otherwise).
†Not weighted.
CKDEPI, Chronic Kidney Disease Epidemiology Collaboration; eGFR, estimated glomerular filtration rate; HBA1c, glycated haemoglobin; MDRD, Modified Diet in Renal Disease; NS-SEC, National Statistics Socio-Economic Classification.