Characteristic | Subgroup | N | Per cent |
---|---|---|---|
Gender | Men | 107 226 | 50.8 |
Women | 103 790 | 49.2 | |
Age | 40–64 | 161 325 | 76.5 |
65–79 | 49 691 | 23.6 | |
Smoking† | Never | 105 614 | 50.1 |
Ex (amount unknown) | 17 418 | 8.3 | |
Ex (light) | 18 199 | 8.6 | |
Ex (heavy) | 8840 | 4.2 | |
Current (amount unknown) | 2294 | 1.1 | |
Current (light) | 28 483 | 13.5 | |
Current (heavy) | 14 503 | 6.9 | |
Missing | 15 665 | 7.4 | |
BMI | 10–20 | 9589 | 4.5 |
20–25 | 64 304 | 30.5 | |
25–30 | 61 384 | 29.1 | |
30–40 | 31 573 | 15.0 | |
40+ | 3436 | 1.6 | |
Missing | 40 730 | 19.3 | |
Index of Multiple Deprivation | 1 (least deprived) | 40 830 | 19.4 |
2 | 49 494 | 23.5 | |
3 | 41 282 | 19.6 | |
4 | 51 123 | 24.2 | |
5 (most deprived) | 28 287 | 13.4 | |
Practice borough | Inner London | 40 647 | 19.3 |
Outer London | 170 639 | 80.7 | |
Time registered with practice | <10 years | 79 797 | 37.8 |
10+ years | 131 219 | 62.2 | |
High exposure to aircraft or rail noise* | No | 155 670 | 73.8 |
Aircraft or rail | 55 346 | 26.2 |
*Lives in postcode within the 50 dB noise contour of Heathrow or City airport, or overland rail.
†Smoking amount categories were classed as light (1-19 cigarettes/day), heavy (20+ cigarettes/day) or unknown where not recorded.
BMI, body mass index.