Table.
Baseline characteristics of the study population by ethnicity
| Total (n=1 472 819) | White (n=1 333 816) | South Asian (n=75 956) | Black (n=49 349) | Chinese (n=10 934) | Arab (n=2764) | ||
|---|---|---|---|---|---|---|---|
| Age, years | 44·9 (17·9) | 45·7 (18·2) | 36·6 (13·3) | 37·8 (12·9) | 36·7 (13·2) | 36·8 (12·6) | |
| Sex | |||||||
| Female | 846 355 (57·5%) | 770 203 (57·7%) | 39 387 (51·9%) | 28 688 (58·1%) | 6769 (61·9%) | 1308 (47·3%) | |
| Male | 626 464 (42·5%) | 563 613 (42·3%) | 36 569 (48·1%) | 20 661 (41·9%) | 4165 (38·1%) | 1456 (52·7%) | |
| Smoking status | |||||||
| Never smoker | 754 436 (51·2%) | 648 609 (48·6%) | 58 415 (76·9%) | 37 317 (75·6%) | 8262 (75·6%) | 1833 (66·3%) | |
| Ex-smoker | 378 414 (25·7%) | 365 456 (27·4%) | 6560 (8·6%) | 4965 (10·1%) | 1120 (10·2%) | 313 (11·3%) | |
| Current smoker | 339 969 (23·1%) | 319 751 (24·0%) | 10 981 (14·5%) | 7067 (14·3%) | 1552 (14·2%) | 618 (22·4%) | |
| Index of Multiple Deprivation* | |||||||
| 1 | 197 039 (13·4%) | 184 600 (13·8%) | 8240 (10·8%) | 2385 (4·8%) | 1598 (14·6%) | 216 (7·8%) | |
| 2 | 278 783 (18·9%) | 259 891 (19·5%) | 11 739 (15·5%) | 4667 (9·5%) | 2180 (19·9%) | 306 (11·1%) | |
| 3 | 297 211 (20·2%) | 272 263 (20·4%) | 15 700 (20·7%) | 6787 (13·8%) | 1882 (17·2%) | 579 (20·9%) | |
| 4 | 328 359 (22·3%) | 290 449 (21·8%) | 19 588 (25·8%) | 15 077 (30·6%) | 2417 (22·1%) | 828 (30·0%) | |
| 5 | 371 427 (25·2%) | 326 613 (24·5%) | 20 689 (27·2%) | 20 433 (41·4%) | 2857 (26·1%) | 835 (30·2%) | |
| BMI, kg/m2 | 26·1 (5·1) | 26·2 (5·1) | 25·1 (4·6) | 27·1 (5·4) | 22·6 (3·7) | 26·5 (5·0) | |
Data are mean (SD) or n (%).
*
The first quintile represents the least deprived and the fifth quintile represents the most deprived.