Major cancer types | No. of fourth and subsequent follow-up scans | No change in management | Change in management | Unknown |
Breast cancer | 426 | 331 (77.7) | 90 (21.1) | 5 (1.2) |
Non-Hodgkin lymphoma | 208 | 153 (73.6) | 28 (13.5) | 27 (12.9) |
Hodgkin disease | 182 | 133 (73.0) | 40 (22.0) | 9 (5.0) |
Colorectal cancer | 286 | 176 (61.5) | 98 (34.3) | 12 (4.2) |
Melanoma | 271 | 220 (81.2) | 49 (18.1) | 2 (0.7) |
Lung cancer | 286 | 190 (66.4) | 81 (28.3) | 15 (5.3) |
Data in parentheses are percentages.