Table 4. Details of clinical ischaemic strokes.

		N	Gender (% female)	Age at stroke median (range)
Total anterior circulation	TACS	0	—	----
Partial anterior circulation	PACS	43	65·1	51 (24–77)
Partial posterior circulation	POCS	17	53·1	52 (25–89)
Lacunar circulation*	LACS	1	100	58
Total	ALL	61	51·5	51 (24–89)

*Note that silent lacunar infarcts, or silent infarcts at other sites, were excluded by the study methodology. Data exclude four iatrogenic strokes of known aetiology (one following thrombus injection through giving set; one at time of cerebral angiography; one at time of pulmonary angiography; and one progressive following stereotactic radiotherapy), but otherwise include all first clinical strokes of ischaemic aetiology.