EPID-15. SURGICAL RESECTION OF BENIGN MENINGIOMAS IN THE ELDERLY POPULATION: IMPLICATIONS FROM A PROPENSITY-SCORE MATCHED ANALYSIS

Abstract Object We characterized the patterns of clinical practice in benign meningioma resection and survival outcome as a function patient age using Surveillance, Epidemiology End Results (SEER) SEER-Medicare database. METHODS The likelihood for recommendation to proceed with adult, patients were logistic regression. Survival analysis was performed propensity-score matching (PSM)-method (covariates balanced PSM: socio-demographics, facility features, comorbidities) through multivariable regression accelerated failure time (AFT) models. RESULTS likelihoods surgery 0.59 (95%CI = 0.53-0.66, P < 0.001) 0.17 0.15-0.21, 60-79 ≥ 80, relative 40-59. Expectedly, hazard death increased advancing aging strata who underwent resection. To account mortality risk associated normal aging, PSM calculate surgically resected an age- PSM-matched cancer-free cohort. This odds ratio (OR) 3.84 (95%CI: 3.15-4.67, 3.41 2.56-4.56, 80. These two ORs not statistically different (ROR: 0.89, 95%CI: 0.63-1.62, 0.512), suggesting that after significantly elevated 80 accounting expected age-related mortality. CONCLUSION Our study suggests surgeons exert caution selecting elderly After selection by surgeon, comparable observed 60-79.