Park 2011.

Study characteristics
Study design	Cohort
Study setting	Setting: Seoul National University Hospital and Seoul National University Bundang Hospital Country: South Korea Dates: NR
Selection of participants	Participants with newly diagnosed supratentorial GBM treated with surgery and Stupp regimen
Participant characteristics	Sample size: 48 (deaths: 22) Age: mean 53.4; range 28–74 years Sex: 62.5% men KPS: NR
Tumour characteristics	GBM: 100% First diagnosis: 100% Biopsy: 24%; subtotal resection: NR; total resection: NR IDH1 wild‐type: NR; IDH2 wild‐type: NR
Treatment regimen	Stupp protocol
MGMT promoter methylation tests implemented	MSP, MS‐MLPA
Dates and follow‐up	Timing of MGMT assessment: at diagnosis Start time for follow‐up: date of surgery; follow‐up: median 16 months; range NR
Notes