Table 1.
The number of meaningful concepts and the number of different ICF codes identified in ten HRQOL instruments
| FLIC | RSCL | CARES-SF | SLDS-C | EORTC-QLQ-C30 | FACT-G | QOL-CS | CPILS | QLACS | IOCv2 | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Scale items (n) | 22 | 39 | 59* | 18 | 30 | 27 | 41 | 29 | 47 | 47* | 359 |
| MCs (n) | 37 | 42 | 113 | 23 | 47 | 38 | 79 | 40 | 85 | 150 | 654 |
| Content density (MCs per item) | 1.7 | 1.1 | 1.9 | 1.3 | 1.6 | 1.4 | 1.9 | 1.4 | 1.8 | 3.2 | 1.8 |
| MCs linked to ICF components (n, %) | 27 (73%) | 40 (95%) | 104 (92%) | 19 (83%) | 42 (89%) | 32 (84%) | 57 (72%) | 34 (85%) | 68 (80%) | 102 (68%) | 525 (80%) |
| MCs linked to health condition (n) | 5 | 9 | 1 | 15 | 3 | 14 | 32 | 79 | |||
| MCs not definable (n) | |||||||||||
| General health | 4 | 1 | 1 | 2 | 2 | 8 | 18 | ||||
| Physical health | 3 | 1 | 1 | 1 | 6 | ||||||
| Quality of life | 1 | 2 | 1 | 1 | 2 | 1 | 8 | ||||
| MCs not covered (n) | 1 | 1 | 1 | 1 | 4 | 1 | 2 | 7 | 18 | ||
| Different ICF codes (n) | 18 | 31 | 50 | 17 | 32 | 19 | 24 | 20 | 26 | 48 | 285 |
| Content diversity (ICF codes per MC) | 0.49 | 0.74 | 0.44 | 0.74 | 0.68 | 0.50 | 0.30 | 0.50 | 0.31 | 0.32 | 0.44 |
* Items that were not applicable if a certain condition was met (e.g. not having a partner) were included
MCs number of meaningful concepts assigned to the items in the instruments (duplicates included)
Content density the number of MCs divided by the number of the instrument’s items
Different ICF codes number of different ICF codes assigned to the MCs
Content diversity the number of different ICF codes used divided by the number of MCs