Selected baseline characteristics of the trial participants
Intervention (EarlyCDT-Lung test) | Control (standard clinical care) | |
Subjects | 6088 | 6121 |
Age at randomisation years | ||
50–54 | 1393 (22.9) | 1409 (23.0) |
55–59 | 1562 (25.7) | 1531 (25.0) |
60–64 | 1300 (21.4) | 1318 (21.5) |
65–69 | 1179 (19.4) | 1203 (19.7) |
70–75 | 654 (10.7) | 660 (10.8) |
Sex | ||
Male | 3095 (50.8) | 3129 (51.1) |
Female | 2993 (49.2) | 2992 (48.9) |
SIMD quintile | ||
1 (most deprived) | 1751 (28.8) | 1726 (28.2) |
2 | 1431 (23.5) | 1420 (23.2) |
3 | 1108 (18.2) | 1121 (18.3) |
4 | 966 (15.9) | 1002 (16.4) |
5 | 782 (12.8) | 792 (12.9) |
No information | 50 (0.8) | 60 (1.0) |
Smoking status | ||
Current smoker | 3199 (52.5) | 3178 (51.9) |
Ex-smoker | 2889 (47.5) | 2943 (48.1) |
Quit ≥1 week | 2207 (36.3) | 2283 (37.3) |
Quit ≥6 months | 1998 (32.8) | 2083 (34.0) |
Pack-years | 38.4±18.7 | 38.0±18.5 |
Family history | 1550 (25.5) | 1614 (26.4) |
Comorbidity | ||
COPD | 306 (5.0) | 287 (4.7) |
Data are presented as n or n (%). SIMD: Scottish Index of Multiple Deprivation; COPD: chronic obstructive pulmonary disease.