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Table 1 Demographic and clinical characteristics of episodes of incidenta allopurinol use

From: Allopurinol and the risk of stroke in older adults receiving medicare

 

All

Incident stroke during follow up

P-value

No

Yes

Total, N (episodes)

28,488

26,311

2,177

 

 Age

76.5 (7.4)

76.4 (7.4)

78.1 (7.3)

<0.0001

Gender, N (%)

   

<0.0001

 Male

14,163 (49.7)

13,185 (50.1)

978 (44.9)

 

 Female

14,325 (50.3)

13,126 (49.9)

1,199 (55.1)

 

Race/Ethnicity, N (%)

   

0.0004

 White

22,627 (79.4)

20,970 (79.7)

1,657 (76.1)

 

 Black

3,371 (11.8)

3,049 (11.6)

322 (14.8)

 

 Hispanic

589 (2.1)

538 (2.0)

51 (2.3)

 

 Asian

1,236 (4.3)

1,134 (4.3)

102 (4.7)

 

 Native American

92 (0.3)

83 (0.3)

9 (0.4)

 

 Other/unknown

573 (2.0)

537 (2.0)

36 (1.7)

 

Region, N (%)

   

0.013

 Northeast

4,586 (16.6)

4,224 (16.6)

362 (17.3)

 

 Midwest

6,400 (23.2)

5,958 (23.3)

442 (21.1)

 

 South

11,405 (41.3)

10,486 (41.1)

919 (44.0)

 

 West

5,227 (18.9)

4,859 (19.0)

368 (17.6)

 

Charlson- Romano comorbidity Index Score

3.61 (3.22)

3.56 (3.20)

4.27 (3.39)

<0.0001

  1. aNo allopurinol use in the baseline period of 365 days