Table 3.
Number and characteristics of quality-of-life substudy participants (proxy report) at registration by questionnaire.
| Characteristics | Quality-of-life questionnaires | ||
| Pediatric Quality of Life Questionnaire (n=295) | Pediatric Quality of Life Inventory (n=660) | ||
| Sex (male), n (%) | 147 (49.8) | 388 (58.8) | |
| Age (years) | |||
|
|
≥5-<16, n (%) | 238 (80.7) | 598 (90.6) |
|
|
≥16, n (%) | 57 (19.3) | 62 (9.4) |
|
|
Overall mean (SD) | 13.0 (2.8) | 12.2 (2.9) |
| Study groups, n (%) | |||
|
|
Children’s Oncology Group | N/Aa | 548 (83.0) |
|
|
Cooperative Osteosarcoma Study group | 180 (61.0) | N/A |
|
|
European Osteosarcoma Intergroup | 55 (18.6) | 112 (17.0) |
|
|
Scandinavian Sarcoma Group | 60 (20.3) | 0 (0.0) |
aN/A: not applicable.