RESUMO
OBJECTIVE: To review and apply statistical tests to the selection criteria used by two medical advisers to approve or deny applications for three common cosmetic or reconstructive procedures within a large group of medical schemes. DESIGN: A retrospective descriptive study which applied multiple regression analysis, frequency analysis, comparison of means and simple correlations to the data sets for three procedures. SETTING: Administrative records from the clinical files of medical advisers and the administrator's claims database. SUBJECTS: Data were reviewed for 1,143 members who, between January and December 1996, submitted applications for breast reduction, excimer laser refractive surgery, or otoplasty. MAIN OUTCOME MEASURES: The primary outcome measure was the statistical relationship between medical advisers' selection criteria and final decision. In addition, the financial implications of these cosmetic/reconstructive procedures were assessed. RESULTS: For the three procedures reviewed there was a statistically significant relationship between 5 of 13 preoperative criteria requested and the medical advisers' opinion. Excimer laser surgery was generally approved on the basis of the refractive error (myopia > -3.00; astigmatism > -1.5 dioptres); otoplasty was generally approved for children aged > or = 12 years; and breast reduction was usually covered for women with a sternal-nipple distance > 29.0 cm and with a cup size > or = DD. The other data submitted were similarly distributed between the approved and denied groups. CONCLUSIONS: Review of medical advisers' decisions is important in an era of protocols, guidelines and 'standard operating procedures'. Selection criteria for approval of applications for medically necessary cosmetic/reconstructive surgery must be reviewed and revised to provide a reliable, reproducible and statistically valid process.
