Table 1 Characteristics of allopurinol users

Total person days

3,724,768

2,053,185

1,671,583

Male gender

53.76

54.00

53.47

  ≤ 50

7.55

6.54

8.79

 51–60

12.86

11.66

14.33

 61–65

9.70

9.32

10.17

 66–70

24.00

24.68

23.16

 71–75

19.73

20.12

19.26

 76–80

14.16

14.41

13.86

  > 80

12.00

13.27

10.44

 Asian

4.49

4.29

4.73

 Black

19.68

16.83

23.18

 Hispanic

2.61

2.01

3.35

 Other

1.87

1.78

1.98

 Missing

4.89

4.26

5.67

 White

66.46

70.83

61.09

 Hypertension

85.57

85.35

85.85

 COPD

9.12

9.00

9.27

 Renal disease

26.11

27.71

24.14

 PVD

8.12

8.17

8.05

 Hyperlipidemia*

79.56

80.53

78.38