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Table 1 Demographic and clinical characteristics of people with and without myocardial infarction

From: Gout and the risk of myocardial infarction in older adults: a study of Medicare recipients

 

All episodes

Myocardial infarction during follow-up

p value

No

Yes

Total, N

1,733,613a

1,719,334

14,279

 

Age, mean (SD)

75.3 (7.6)

75.3 (7.6)

77.0 (7.4)

< 0.0001

Gender, N (%)

   

< 0.0001

 Male

734,540 (42.4%)

727,667 (42.3%)

6873 (48.1%)

 

 Female

999,073 (57.6%)

991,667 (57.7%)

7406 (51.9%)

 

Race/ethnicity, N (%)

   

0.18

 White

1,493,475 (86.1%)

1,481,232 (86.2%)

12,243 (85.7%)

 

 Black

142,284 (8.2%)

141,052 (8.2%)

1232 (8.6%)

 

 Other/unknown

97,854 (5.6%)

97,050 (5.6%)

804 (5.6%)

 

Charlson–Romano comorbidity score

 0

913,332 (52.7%)

909,183 (52.9%)

4149 (29.1%)

< 0.0001

 1

174,551 (10.1%)

172,711 (10.0%)

1840 (12.9%)

 

 ≥ 2

645,730 (37.2%)

637,440 (37.1%)

8290 (58.1%)

 

Charlson–Romano comorbidity score, mean (SD)

1.60 (2.39)

1.59 (2.38)

2.71 (2.79)

< 0.0001

Charlson–Romano comorbidities

 Myocardial infarctionb

65,668 (3.8%)

64,977 (3.8%)

0 (0%)

< 0.0001

 Heart failure

202,190 (11.7%)

199,011 (11.6%)

3179 (22.3%)

< 0.0001

 Peripheral vascular disease

168,646 (9.7%)

165,601 (9.6%)

3045 (21.3%)

< 0.0001

 Cerebrovascular disease

168,696 (9.7%)

166,159 (9.7%)

2537 (17.8%)

< 0.0001

 Dementia

78,238 (4.5%)

77,698 (4.5%)

540 (3.8%)

< 0.0001

 Chronic pulmonary disease

270,419 (15.6%)

267,014 (15.5%)

3405 (23.8%)

< 0.0001

 Connective tissue disease

48,195 (2.8%)

47,571 (2.8%)

624 (4.4%)

< 0.0001

 Peptic ulcer disease

32,778 (1.9%)

32,371 (1.9%)

407 (2.9%)

< 0.0001

 Mild liver disease

8543 (0.49%)

8472 (0.49%)

71 (0.50%)

0.94

 Diabetes

319,836 (18.4%)

314,635 (18.3%)

5201 (36.4%)

< 0.0001

 Diabetes with end organ damage

94,249 (5.4%)

92,168 (5.4%)

2081 (14.6%)

< 0.0001

 Hemiplegia

14,339 (0.83%)

14,164 (0.82%)

175 (1.2%)

< 0.0001

 Renal failure/disease

59,280 (3.4%)

58,007 (3.4%)

1273 (8.9%)

< 0.0001

 Any tumor, leukemia, or lymphoma

174,684 (10.1%)

172,971 (10.1%)

1713 (12.0%)

< 0.0001

 Moderate or severe liver disease

2002 (0.12%)

1986 (0.12%)

16 (0.11%)

0.9

 Metastatic cancer

18,009 (1.0%)

17,895 (1.0%)

114 (0.80%)

0.004

 AIDS

549 (0.03%)

543 (0.03%)

6 (0.04%)

0.49

Hypertension

836,875 (48.3%)

827,183 (48.1%)

9692 (67.9%)

< 0.0001

Hyperlipidemia

602,546 (34.8%)

595,936 (34.7%)

6610 (46.3%)

< 0.0001

Coronary artery disease

302,088 (17.4%)

297,025 (17.3%)

5063 (35.5%)

< 0.0001

Obesity

36,034 (2.1%)

35,602 (2.1%)

432 (3.0%)

< 0.0001

  1. aMet eligibility criteria and did not have MI in the baseline 365-day period; MI identified by the presence of two separate claims 4-weeks apart each with an ICD-9-CM code of 410.x1 during the study period of 2006–2012, with an exclusion of any person with ICD-9-CM code of 410.xx or 412.xx during the baseline 365-day period of 1/1/2005 to 12/31/2005
  2. bIdentified by the presence of ICD-9-CM code of 410.x or 412.x in the baseline 365-day period in 2005
  3. ICD-9-CM International Classification of Diseases, ninth revision, common modification, MI myocardial infarction, SD standard deviation