Table 2 Clinical factors and life stressors

Underlying CVS diagnosis

 Rheumatic heart disease

98

50.8

 Atrial fibrillation

53

27.5

 Thrombo-embolism

30

15.6

 Others

12

6.1

Length of time on Warfarin

  ≤ 6

39

20.9

  > 6–24

57

30.5

 25–60

56

30.0

  > 60

35

18.7

Other comorbidities

 Present

36

18.3

 None

161

81.7

History of cardiac surgery

 Yes

58

30.0

 No

138

70.0

Length from time of surgery in months (N = 58)

  < 1 year

12

21.1

 1 to < 3 years

22

38.6

 3 to 5 years

10

17.5

  > 5 years

13

22.8

Other chronic medications besides Warfarin*

 Loop diuretic

108

63.5

 Penicillin

93

54.7

 Beta blocker

86

50.8

 Cardiac glycoside

64

37.7

 Others

15

64.5

Life stressors*

 Major life events

47

23.9

 Trauma

17

8.6

 Economic stressors

38

19.3

 Social stressors

36

18.3

 Occupational stressors

98

49.8