Table 3.
Comparison of characteristics of participants and non-participants
| N | BRIGHTLIGHT cohort | N | Non-participants | P value* | |
| Age at diagnosis (years) | |||||
| Mean (SD) | 1114 | 20.13 (3.28) | 4721 | 19.94 (3.33) | 0.08 |
| Median (IQR) | 20.64 (17.58, 22.95) | 21 (17, 23) | |||
| Gender, n (%) | |||||
| Male | 1114 | 618 (55) | 4721 | 2213 (47) | <0.0001 |
| Female | 496 (45) | 2508 (53) | |||
| Ethnicity n (%) | |||||
| White | 1085 | 936 (86) | 4316 | 3643 (84) | 0.002 |
| Asian | 82 (8) | 288 (7) | |||
| Black | 22 (2) | 156 (4) | |||
| Chinese | 4 (<1) | 34 (<1) | |||
| Mixed | 26 (2) | 74 (2) | |||
| Other | 15 (1) | 121 (3) | |||
| Type of cancer, n (%)† | |||||
| Leukaemia | 1114 | 145 (13) | 4721 | 300 (6) | <0.0001 |
| Lymphoma | 350 (31) | 781 (17) | |||
| CNS | 46 (4) | 735 (16) | |||
| Bone | 102 (9) | 177 (4) | |||
| Sarcomas | 78 (7) | 207 (4) | |||
| Germ cell | 212 (19) | 504 (11) | |||
| Skin | 45 (4) | 709 (15) | |||
| Carcinoma (not skin) | 125 (11) | 1210 (26) | |||
| Miscellaneous specified | 9 (<1) | 55 (1) | |||
| Unspecified malignant | 2 (<1) | 43 (1) | |||
| Geographical location, n (%)‡ | |||||
| Birmingham | 1114 | 155 (14) | 4618 | 459 (10) | <0.0001 |
| Bristol | 116 (10) | 351 (8) | |||
| Cambridge | 23 (2) | 276 (6) | |||
| Manchester | 103 (9) | 391 (8) | |||
| Merseyside | 42 (4) | 239 (5) | |||
| East Midlands | 135 (12) | 278 (6) | |||
| Leeds | 106 (10) | 254 (6) | |||
| Newcastle | 59 (5) | 305 (7) | |||
| Oxford | 19 (2) | 249 (5) | |||
| London (south) | 77 (7) | 668 (14) | |||
| Sheffield | 37 (3) | 174 (4) | |||
| Southampton | 83 (8) | 221 (5) | |||
| London (north) | 159 (14) | 753 (16) |
*P values from χ2 tests and t-tests as appropriate.
†Based on the Birch classification.11
‡Hospitals mapped to the multidisciplinary team at the teenage and young adult principal treatment centre they were linked to.
CNS, central nervous system.