Patient-reported outcome measures for acute rhinosinusitis in adults and children: a systematic review of the quality of existing instruments

Table 2 Boxes of the COSMIN risk of Bias checklist

Content validity
Box 1	PROM development
Box 2	Content validity
Internal structure
Box 3	Structural validity
Box 4	Internal consistency
Box 5	Cross-cultural validity/measurement invariance
Remaining measurement properties
Box 6	Reliability
Box 7	Measurement error
Box 8	Criterion validity
Box 9	Hypotheses testing for construct validity
Box 10	Responsiveness

COSMIN Consensus-based Standards for the selection of health Measurement Instruments, PROM patient-reported outcome measure

ISSN: 1477-7525