Table 4.

Overview of available metadata from interim analysis patient cohort

Metadata		Cancer	Non-cancer
Headache	Yes	34	102
	No	32	209
	NA	3	5
Headache duration	<1 month	10	49
	<6 months	14	31
	+6 months	8	115
	NA	37	121
Headache worse in morning	Yes	9	61
	No	18	146
	NA	42	109
Headache with nausea	Yes	9	76
	No	17	133
	NA	43	107
Memory change	Yes	13	124
	No	47	185
	NA	9	7
Personality change	Yes	11	80
	No	50	230
	NA	8	6
Verbal fluency	15+	26	47
	<15	16	91
	NA	27	178
Steroids	Yes	35	50
	No	4	105
	NA	30	161
Anti-epileptic drugs	Yes	20	17
	No	49	299
Statins	Yes	17	60
	No	52	256
Anti-hypertensives	Yes	18	93
	No	51	223
Anti-thrombotics	Yes	8	45
	No	61	271
NSAIDs	Yes	6	53
	No	63	263
BMI	S. underweight	2	5
	Underweight	3	32
	Normal	37	145
	Overweight	18	91
	Obese	6	19
	S. obese	0	2
	NA	3	22

Where data were unavailable or not recorded, ‘NA’ (not available) was noted.

BMI, body mass index; NSAID, non-steroidal anti-inflammatory drugs.