Table 3 COSMIN checklist with 4-point scale ratings of the included instruments
Instrument | Internal consistency | Reliability | Content validity | Measurement error | Structural validity | Hypotheses testing | Criterion validity | Cross-cultural validity | Responsiveness |
|---|---|---|---|---|---|---|---|---|---|
For paediatrics | |||||||||
 IMPACT | ** | *** | **** | ** | ** | **** | *** | NA | NA |
 IMPACT-II | ** | *** | **** | ** | ** | *** | *** | ** | NA |
 IMPACT-III | **** | *** | **** | ** | **** | *** | *** | *** | NA |
For adults | |||||||||
 IBDQ-32 | *** | *** | **** | ** | ** | *** | *** | **** | ** |
 SIBDQ | ** | ** | *** | * | ** | *** | *** | *** | *** |
 IBDQ-36 | ** | NA | ** | NA | ** | * | NA | NA | NA |
 IBDQ-9 | ** | ** | *** | ** | *** | **** | *** | * | **** |
 RFIPC | **** | ** | **** | ** | **** | ** | ** | *** | * |
 CCQIBD | NA | * | *** | NA | NA | * | ** | NA | NA |
 PIBDQL | NA | NA | ** | NA | NA | * | NA | *** | NA |
 CGQL | *** | NA | *** | NA | * | ** | ** | ** | ** |
 SHS | ** | ** | ** | ** | * | *** | *** | *** | *** |
 EIBDQ | *** | NA | **** | NA | *** | ** | *** | NA | NA |
 CLIQ | **** | *** | **** | ** | *** | *** | *** | NA | NA |
 CUCQ | ** | *** | *** | ** | NA | ** | *** | NA | **** |