Who receives anticoagulant treatment with warfarin and why? A population-based study in Finland

Figures & data

Figure 1. Prevalence of AC treatment in the population of 15 municipalities in South Ostrobothnia as at 1 April 2004 by five-year age groups and gender. (For men 95 years and older the prevalence was 31%.)

Table I. Distribution of main and second indications for AC treatment of all AC patients by age group in 15 municipalities in South Ostrobothnia in Finland, 1 April 2004.

Indications ICD 10 code and name	Age < 60 years n = 317		Age ≥ 60 years n = 2072		All n = 2389
	Main indication (%)	Second indication (%)	Main indication (%)	Second indication (%)	Main indication (%)	Second indication (%)
I48 Atrial fibrillation	32.5	4.4	64.5	7.6	60.2	7.2
I80 Deep vein thrombosis of lower extremity	18.3	2.5	8.1	1.1	9.4	1.3
I63 Brain infarction	8.5	0.6	7.0	4.3	7.2	3.8
I26 Pulmonal emboli	8.2	3.2	5.7	1.4	6.0	1.6
I35 Lesions of aortic valve	15.5	1.6	4.3	1.0	5.8	1.1
I65 Occlusion and stenosis of precerebral arteries which has not caused brain infarction	0.6	0.6	2.3	0.8	2.1	0.8
Other diagnoses	16.1	14.9	8.0	8.9	9.2	9.7
No indication	0.3	72.2	0.1	74.9	0.1	74.5
Altogether	100	100	100	100	100	100

Figure 2. Proportion of patients who had atrial fibrillation and AC treatment in the population of 15 municipalities in South Ostrobothnia as at 1 April 2004 in five-year age groups by gender.