Table 1.

Patient demographics, tumour histology and lesion classification

Patient population – tumour type	Group II (multiple DSC time points)	Group I (single DSC time point)
Total number of patients	19	64
Sex ratio (M/F)	11/8	40/24
Mean age	45	48.5
Tumour type
Glioblastoma (WHO grade 4)	13	43
Anaplastic astrocytoma (WHO grade 3)	4	14
Anaplastic oligodendroglioma (WHO grade 3)	2	7
Progressive disease (PD)	8	37
Pseudoprogression (PsP)	5	13
Stable disease (SD)	6	14
Surgical treatment
Gross total resection, N (%)	13 (68%)	38 (60%)
Sub-total resection, N (%)	2 (11%)	13 (20%)
No surgery, N (%)	4 (21%)	13 (20%)
Follow up interval (days) Mean, SD [95% CI]:	208, 170 [172–243]	201, 159 [182–220]
Follow up interval in days Mean, SD [95% CI] [PsP cases]	272, 218 [149–395]	216, 176 [61–370]