Changes in demographic parameters, blood pressure and other variables from 2003 to 2011
| 2003 (N=9183) | 2006 (N=8762) | 2008 (N=8974) | 2011 (N=4753) | p Value | |
|---|---|---|---|---|---|
| Age (year) | 49.5±0.2 | 50.6±0.2 | 50.4±0.2 | 51.0±0.3 | <0.001 |
| Sex, N (%) | |||||
| Men | 4108 (45) | 3924 (45) | 4040 (45) | 2070 (44) | |
| Women | 5075 (55) | 4838 (55) | 4934 (55) | 2683 (56) | 0.406 |
| Ethnic group, N (%) | |||||
| White | 8559 (93) | 8118 (93) | 8241 (92) | 4344 (92) | |
| Black | 148 (2) | 158 (2) | 170 (2) | 95 (2) | |
| Mixed | 41 (0.4) | 66 (1) | 75 (1) | 58 (1) | |
| Other | 429 (5) | 418 (5) | 483 (5) | 251 (5) | <0.001 |
| Highest education qualification, N (%) | |||||
| NVQ4/NVQ5/degree equivalent | 1527 (17) | 1708 (20) | 1803 (20) | 1186 (25) | |
| Lower than higher education | 1040 (11) | 1078 (12) | 1040 (12) | 559 (12) | |
| NVQ3/GCE A level equivalent | 1096 (12) | 1124 (13) | 1312 (15) | 698 (15) | |
| NVQ2/GCE O level equivalent | 2198 (24) | 1944 (22) | 1934(22) | 1001 (21) | |
| NVQ1/GCE other equivalent | 467 (5) | 420 (5) | 437 (5) | 207 (4) | |
| Foreign or other | 431 (5) | 175 (2) | 173 (2) | 71 (2) | |
| No qualification | 2416 (26) | 2307 (26) | 2273 (25) | 1026 (22) | <0.001 |
| Household income in quintile (1– 5, high to low), N (%) | |||||
| 1 | 1355 (17) | 1111 (15) | 1213 (16) | 608 (15) | |
| 2 | 1421 (18) | 1437 (20) | 1501 (20) | 813 (21) | |
| 3 | 1760 (22) | 1567 (22) | 1548 (21) | 816 (21) | |
| 4 | 1821 (23) | 1596 (22) | 1595 (21) | 867 (22) | |
| 5 | 1653 (21) | 1592 (22) | 1665 (22) | 850 (22) | <0.001 |
| Frequency of alcohol consumption in past 12 months, N (%) | |||||
| Every day | 1348 (15) | 1208 (14) | 1137 (13) | 511 (11) | <0.001 |
| 5/6 days/week | 440 (5) | 447 (5) | 448 (5) | 207 (4) | |
| 3/4 days/week | 1443 (16) | 1292 (15) | 1395 (16) | 667 (14) | |
| Once or twice a week | 2689 (29) | 2392 (27) | 2380 (27) | 1252 (26) | |
| Once or twice a month | 1098 (12) | 1100 (13) | 1149 (13) | 687 (15) | |
| Once every couple of months | 588 (6) | 639 (7) | 641 (7) | 422 (9) | |
| Once or twice a year | 696 (8) | 698 (8) | 725 (8) | 376 (8) | |
| Not at all | 860 (9) | 972 (11) | 1075 (12) | 619 (13) | |
| Fruit and vegetable consumption (portion/day) | 3.6±0.03 | 3.9±0.03 | 3.8±0.03 | 3.8±0.04 | <0.001 |
| Body mass index (kg/m2) | 27.1±0.05 | 27.3±0.06 | 27.3±0.06 | 27.6±0.08 | <0.001 |
| Blood pressure (mm Hg) | |||||
| Systolic | 129.3±0.20 | 128.3±0.19 | 127.4±0.19 | 126.3±0.25 | <0.001 |
| Diastolic | 74.2±0.12 | 73.6±0.12 | 73.3±0.12 | 72.8±0.16 | <0.001 |
| Total cholesterol (mmol/L) | 5.7±0.01 | 5.5±0.01 | 5.4±0.01 | 5.3±0.02 | <0.001 |
| HDL (mmol/L) | 1.53±0.005 | 1.50±0.005 | 1.50±0.005 | 1.51±0.008 | <0.001 |
| Smoking status, N (%) | |||||
| Never smoked cigarettes at all | 4258 (46) | 4256 (49) | 4473 (50) | 2376 (50) | |
| Used to smoke cigarettes occasionally | 595 (7) | 477 (6) | 483 (5) | 279 (6) | |
| Used to smoke cigarettes regularly | 2565 (28) | 2525 (29) | 2536 (28) | 1410 (30) | |
| Current cigarette smoker | 1749 (19) | 1491 (17) | 1458 (16) | 680 (14) | <0.001 |
HDL, high-density lipoprotein.