Table 3

The difference in the number of strokes expected, comparing actual and ideal treatments, in the first and second audits

Risk of stroke		Total No of patients		Actual treatment		Actual expected strokes		Ideal treatment		Ideal expected strokes	Actual ideal difference in strokes
Risk of stroke		Total No of patients		Warfarin	Aspirin	Actual expected strokes		None	Warfarin	Ideal expected strokes	Actual ideal difference in strokes	Aspirin	None
First audit
High	156	59	42	55	10.1	139	5	12	6.0	4.1
Moderate	23	2	8	13	0.7	0	20	3	0.4	0.3
Low	6	2	2	2	0	0	0	6	0	0
Total					10.8				6.4	4.4

Second audit
High	150	74	52	24	8.1	111	35	4	6.3	1.9
Moderate	35	4	18	13	0.8	0	31	4	0.6	0.2
Low	0				0				0	0
Total					8.9				6.8	2.1