Instrument development and concept elicitation study quality ratings for CAP-specific PROM instruments
| Instrument | Reference | Quality of concept elicitation study | Total quality of PROM development study | |
| COSMIN quality rating* | Were patients involved? | COSMIN quality rating* | ||
| CAP-Sym | Lamping et al29 | Doubtful | Yes | Inadequate |
| CAP-BIQ | Wyrwich et al19 | Adequate | Yes | Doubtful |
| CAP Score | El Moussaoui et al30 | Inadequate | No | Inadequate |
| Metlay score 1 | Metlay et al31 | Inadequate | No | Inadequate |
| Metlay score 2 | Metlay et al32 | Inadequate | Yes | Inadequate |
*The COSMIN quality rating applies a four-point scale: very good, adequate, doubtful, inadequate.
CAP, community-acquired pneumonia;CAP-BIQ, CAP Burden of Illness Questionnaire;CAP-Sym, CAP Symptom Questionnaire;COSMIN, COnsensus based Standards for selection of health Measurement Instruments; PROM, patient-reported outcome measure.