Table 1.

Characteristics of poststroke study population

	N (%)		N (%)
Total	45 474 (100)		45 474 (100)
Total person-years from study start date to end of follow-up (1000s)	148.371	Alcohol status
Age at first incident stroke (years)		Non-drinker	4914 (10.8)
40 to 59	7527 (16.6)	Current-drinker	29 044 (63.9)
60 to 74	14 578 (32.1)	Ex-drinker	6447 (14.2)
75 to 84	14 026 (30.8)	Missing	5069 (11.1)
Over 85	9343 (20.5)	BMI category WHO defined
Sex		Underweight	1235 (2.7)
Male	23 196 (51)	Normal Weight	13 782 (30.3)
Female	22 278 (49.0)	Overweight	15 146 (33.3)
Ethnicity		Obese	10 318 (22.7)
Black	543 (1.2)	Missing	4993 (11.0)
Mixed/Other	520 (1.1)	Current smoker
South Asian	885 (1.9)	No	35 461 (78.0)
White	43 526 (95.7)	Yes	8781 (19.3)
Dementia diagnosed in study period, excluding first 3 months		Missing	1232 (2.7)
No	40 850 (89.8)	Myocardial Infarction prior to stroke
Yes	4624 (10.2)	No	41 887 (92.1)
Index of Multiple Deprivation (1 is least deprived)		Yes	3587 (7.9)
1	7273 (16.0)	Atrial fibrillation prior to stroke
2	8407 (18.5)	No	39 449 (86.8)
3	9776 (21.5)	Yes	6025 (13.2)
4	9125 (20.1)	Uncontrolled diabetes prior to stroke
5	10 893 (24.0)	No	42 857 (94.2)
Statin prescription 2 years prior to stroke		Yes	2617 (5.8)
No	29 599 (65.1)	Consultations per year in 3 years prior to stroke
Yes	15 875 (34.9)	<10 per year	25 399 (55.9)
Uncontrolled HT (Sys≥140 and Dias≥90 mm Hg)—2 years prior to stroke		10–20 per year	12 962 (28.5)
No	40 710 (89.5)	20–30 per year	4496 (9.9)
Yes	4764 (10.5)	30–50 per year	2220 (4.9)
Immunosuppressive prescription 2 years prior to stroke		>50 per year	397 (0.9)
No	40 375 (88.8)	Patient has HES linkage
Yes	5099 (11.2)	No	7089 (15.6)
Antiplatelets within 90 days of stroke onset		Yes	38 385 (84.4)
No	18 308 (40.3)
Yes	27 166 (59.7)

BMI, body mass index.