title: Factors associated with survival in patients with meningioma.
abstract: OBJECTIVE
  To explore factors affecting the survival rate in patients with meningiomas, the authors used the National Cancer Data Base (NCDB), which includes tumors from approximately 1000 hospitals participating in the American College of Surgeons tumor registry program.
  
  
  METHODS
  Analysis included over 9000 cases diagnosed from 1985 to 1988 and 1990 to 1992. Survival estimates were computed and prognostic factors were identified using a proportional hazards model. The overall 5-year survival rate was 69% and it declined with patient age. This rate was 81% in patients aged 21 to 64 years and 56% for patients 65 years of age or older. When patients were grouped by the histological type of their tumors, those with benign tumors had an overall 5-year survival rate of 70%, whereas the overall 5-year survival rates in patients with atypical and malignant meningiomas were 75% and 55%, respectively. Prognostic factors for benign tumors included age at diagnosis, tumor size, whether treated surgically, hospital type, and radiation therapy; for malignant tumors, the prognostic factors included: age at diagnosis, whether treated surgically, and radiation therapy. These factors were statistically significant. The 5-year rate for recurrence of symptoms (regardless of the method of treatment) was 19.2% for those with benign tumors and 32.4% for those with malignant tumors. In patients whose benign tumor had been completely removed, the 5-year rate of tumor recurrence was 20.5%.
  
  
  CONCLUSIONS
  Although not population-based, the NCDB has the potential for providing pertinent information regarding patient characteristics and methods of treatment for benign, as well as malignant, brain tumors.
authors.affiliation: Department of Biostatistics/Epidemiology, University of Illinois at Chicago, 60612, USA.
authors.forename: B J
authors.initials: BJ
authors.lastname: McCarthy
authors.forename: F G
authors.initials: FG
authors.lastname: Davis
authors.forename: S
authors.initials: S
authors.lastname: Freels
authors.forename: T S
authors.initials: TS
authors.lastname: Surawicz
authors.forename: D M
authors.initials: DM
authors.lastname: Damek
authors.forename: J
authors.initials: J
authors.lastname: Grutsch
authors.forename: H R
authors.initials: HR
authors.lastname: Menck
authors.forename: E R
authors.initials: ER
authors.lastname: Laws
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000367:Age Factors; D000368:Aged; D000704:Analysis of Variance; D019992:Databases as Topic; D005260:Female; D005544:Forecasting; D006761:Hospitals / Q000145:classification / Q000706:statistics & numerical data; D006801:Humans; D016015:Logistic Models; D008297:Male; D008577:Meningeal Neoplasms / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D008579:Meningioma / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D015999:Multivariate Analysis; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology; D009367:Neoplasm Staging; D011379:Prognosis; D016016:Proportional Hazards Models; D018714:Radiotherapy, Adjuvant; D012042:Registries; D012307:Risk Factors; D012737:Sex Factors; D015996:Survival Rate; D014481:United States / Q000453:epidemiology