Validation of the Manchester Cosmetic Clinician-Reported Outcomes Questionnaire (MCCRO-Q).

Patient-reported outcome measures (PROM) are collected pre- and post-operatively following cosmetic surgery. Clinicians assess their own outcomes following surgery, but without a validated clinician-reported outcome measure (CROM), there is no way to compare the clinical results among clinicians or compare these to PROM. Assessment of clinical outcomes is important to address the patients' expectations in the consenting process and to provide recommendations to patients preoperatively to improve post-operative appearance. To address the lack of validated CROM for cosmetic surgery, the Manchester Cosmetic Clinical Reported Outcome Questionnaire (MCCRO-Q) was developed. This study assessed the inter-rater reliability of assessors using the four-point scale pre- and post-operative MCCRO-Q questionnaires. Fifteen assessors reviewed photos from pre- and post-operative assessments in the UK between July 2016 and February 2020. Ninety-five patients were included in this validation study, with each patient assessed by a minimum of 3 assessors. MCCRO-Q showed consistency between reviewers, with all intra-class coefficient averages >0.5 for pre- and post-operative assessments. Moreover, 26% of preoperative assessments demonstrated perfect agreement, 56% had a maximum one-point difference and 18% had a two-point difference to the median score. Furthermore, 1% of postoperative assessments demonstrated perfect agreement, 36% had a one-point difference and 63% had a maximum point difference of 2 to the median score. The inter-rate agreement showed that MCCRO-Q is a reliable tool when used with 3 or more assessors to judge patient appearance clinically, preoperatively and post-operatively, concerning abdominoplasty.