Table 2.

Determinants of medication use in cerebrovascular disease (stroke and TIA) patients in 2005

	N (%)	Anti-platelet drugs		Blood pressure lowering drugs*		Statins
		n (%)	Prevalence ratio (95% CI)	n (%)	Prevalence ratio (95% CI)	n (%)	Prevalence ratio (95% CI)
Age
Younger	168 (48)	137 (82)	1.00	116 (69)	1.00	108 (64)	1.00
Older	181 (52)	135 (75)	0.91 (0.82, 1.02)	116 (64)	0.93 (0.79, 1.08)	75 (41)	0.64 (0.52, 0.79)
Social class
Non-manual	177 (51)	143 (81)	1.00	122 (69)	1.00	95 (54)	1.00
Manual	167 (49)	127 (76)	0.94 (0.84, 1.05)	107 (64)	0.93 (0.79, 1.08)	86 (52)	0.96 (0.78, 1.17)
Region
North	112 (32)	91 (81)	1.00	69 (62)	1.00	61 (54)	1.00
South	237 (68)	181 (76)	0.94 (0.84, 1.05)	163 (69)	1.12 (0.94, 1.32)	122 (51)	0.95 (0.77, 1.17)
Time since diagnosis
<5 years	151 (43)	121 (80)	1.00	100 (66)	1.00	83 (55)	1.00
5-10 years	109 (31)	88 (81)	1.00 (0.89, 1.14)	72 (66)	0.99 (0.84, 1.19)	56 (51)	0.93 (0.74, 1.18)
>10 years	89 (26)	63 (71)	0.88 (0.76, 1.03)	60 (67)	1.02 (0.85, 1.22)	44 (49)	0.89 (0.69, 1.16)
Disability
No	198 (57)	157 (79)	1.00	126 (64)	1.00	106 (54)	1.00
Yes	151 (43)	115 (76)	0.96 (0.86, 1.08)	106 (70)	1.10 (0.95, 1.28)	77 (51)	0.95 (0.78, 1.17)
Type of vascular disease
Stroke	159 (46)	118 (74)	1.00	116 (73)	1.00	87 (55)	1.00
TIA	190 (54)	154 (81)	1.09 (0.97, 1.22)	116 (61)	0.84 (0.72, 0.97)	96 (51)	0.92 (0.76, 1.13)
Coronary heart disease
No	234 (67)	177 (76)	1.00	143 (61)	1.00	104 (44)	1.00
Yes	115 (33)	95 (83)	1.09 (0.98, 1.22)	89 (77)	1.27 (1.09, 1.46)	79 (61)	1.55 (1.28, 1.87)

^*Blood pressure lowering drugs include - thiazides, diuretics with potassium, beta-blockers, drugs affecting the rennin-angiotensin system and other antihypertensives, and calcium channel blockers