Table 1 Indicators used for annual reporting in the Danish Neuro-Oncology Registry

Ia

Proportion of patients who are alive 1 year after surgery out of all patients in whom the histological diagnosis is glioblastoma

≥50

Ib

Proportion of patients who are alive 2 years after surgery out of all patients in whom the histological diagnosis is glioblastoma

≥15

II

Proportion of patients who have undergone postoperative MRI no later than the 3rd day after primary surgery out of all patients who have undergone resection and have contrast-enhancing tumor (i.e., suspected high-grade glioma) prior to resection

≥90

III

Proportion of operations conducted or supervised by a specialist in neurosurgery out of all operations both primary and at progression

≥95

IV

Proportion of patients with no measurable residual tumor demonstrated by postoperative MRI performed after primary surgery out of all primarily diagnosed patients, where the histological diagnosis is glioblastoma. (Denominator includes patients with only performed biopsy or where control MRI scan is not available)

≥20 and

≤70

V

Proportion of patients alive more than 30 days after surgery out of all patients who have undergone primary surgery for gliomas

≥95

VI

Proportion of patients finishing focal high-dose radiation therapy as planned out of all patients starting this treatment and where the histological diagnosis is glioblastoma

≥90

VII

Proportion of patients finishing concomitant chemoradiotherapy with temozolomide as planned out of all patients starting this treatment and where the histological diagnosis is glioblastoma

≥85