Summary of characteristics of the study populations
| Variable | Total cohort,n=7216 (%) | Presentation delay cohort,n=4539 (%) | Healthcare delay cohort,n=5193 (%) | Outcome cohort,n=5678 (%) |
| Male | 4580 (63) | 2918 (64) | 3300 (64) | 3588 (63) |
| Age, median (range) | 38 (18–105) | 38 (18–105) | 39 (18–105) | 37 (18–105) |
| UK born | 1487 (21) | 942 (21) | 1083 (21) | 1221 (22) |
| Ethnicity | ||||
| Asian/Asian-British | 2624 (36) | 1538 (34) | 1751 (34) | 2037 (36) |
| Black-African/black-Caribbean/black-British | 1720 (24) | 1139 (25) | 1281 (25) | 1335 (24) |
| White | 1585 (22) | 1022 (23) | 1205 (23) | 1277 (22) |
| Other | 1253 (17) | 827 (18) | 938 (18) | 1007 (18) |
| History of drug use | 479 (6.6) | 310 (6.8) | 357 (6.9) | 381 (6.7) |
| History of homelessness | 458 (6.3) | 310 (6.8) | 353 (6.8) | 354 (6.2) |
| History of imprisonment | 332 (4.6) | 215 (4.7) | 253 (4.9) | 265 (4.7) |
| Alcohol misuse | 438 (6.1) | 282 (6.2) | 331 (6.4) | 340 (6.0) |
| Mental health concerns | 485 (6.7) | 315 (6.9) | 365 (7.0) | 375 (6.6) |
| Employed | 5052 (70) | 3274 (72) | 3739 (72) | 3984 (70) |
| Place of healthcare | ||||
| Accident & emergency (A&E) | 1783 (25) | 1576 (35) | 1717 (33) | 1354 (24) |
| General practitioner | 2431 (34) | 2054 (45) | 2338 (45) | 1982 (35) |
| Private sector | 71 (1.0) | 56 (1.2) | 68 (1.3) | 57 (1.0) |
| Other | 1121 (16) | 834 (18) | 1048 (20) | 891 (16) |