Table 2:

Basic demographics for the 634 patients included in the study cohorta

Age in years Mean +/− SD.56 +/- 13
Sex N (%)
 Male372 (59%)
 Female262 (41%)
Primary self-reported race N (%)
 White566 (89%)
 Black or African American41 (7%)
 Asian9 (1%)
 Other8 (1%)
 Not reported/declined10 (2%)
Self-reported ethnicity N (%)
 Not Hispanic592 (93%)
 Hispanic11 (5%)
 Not reported/declined31 (2%)
IDH N (%)
 Wild-type479 (76%)
 Mutant63 (10%)
 Inconclusive/missing92 (14%)
Tumor types N (%)
 Enhancing2163 (64%)
 Nonenhancing edema/FLAIR3401 (99%)
  • aPatient age was assessed at the time of the first available MRI brain examination date. “Other” self-reported races included American Indian or Alaskan native and other. “Other/missing” IDH types included atypical IDH2 mutation, both positive and negative, not provided, indeterminate, or no records found in the database. The last item, “tumor types,” recorded enhancing and nonenhancing tumors (at least 1 mL) across the 3403 examinations in the study cohort.