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Table 3 Risk of mortality associated with different risk factors among chronic atrial fibillation patients.

From: Risk of mortality in a cohort of patients newly diagnosed with chronic atrial fibrillation

 

Cases

Controls

Odds Ratio*

 

n = 234

(%)

n = 801

(%)

(95% CI)

Sex

     

Males

115

(49.1)

372

(53.6)

1

Females

119

(50.9)

429

(46.4)

0.9 (0.6–1.3)

Age

     

40–59 years

4

(1.7)

67

(8.4)

1

60–69 years

19

(8.1)

136

(17.0)

1.9 (0.6–5.9)

70–79 years

93

(39.7)

325

(40.6)

4.0 (1.4 – 11.7)

80–89 years

118

(50.4)

273

(34.1)

6.0 (2.0–17.6)

Smoking status

     

Never smoker

108

(46.2)

486

(60.7)

1

Smoker

59

(25.2)

127

(15.9)

2.6 (1.7–4.0)

Ex-smoker

28

(12.0)

84

(10.5)

1.6 (0.9–2.7)

Unknown

39

(16.7)

104

(13.0)

1.7 (1.0–2.9)

BMI (weight /height 2 )

     

<22

30

(12.8)

82

(10.2)

1.0 (0.6–1.9)

22–24.9

49

(20.9)

138

(17.2)

1

25–30

60

(25.6)

227

(28.3)

0.8 (0.5–1.3)

+30

20

(8.5)

131

(16.4)

0.5 (0.3–0.9)

Unknown

75

(32.1)

223

(27.8)

0.9 (0.5–1.5)

Prior co-morbidity

     

Diabetes

30

(12.8)

59

(7.4)

2.1 (1.3–3.6)

Heart Failure

137

(58.5)

271

(33.8)

1.9 (1.4–2.7)

Ischemic heart disease

127

(54.3)

206

(25.7)

3.0 (2.1 – 4.2)

Hypertension

104

(44.4)

355

(44.3)

0.9 (0.7–1.3)

Cerebrovascular disease

73

(31.2)

159

(19.9)

1.5 (1.1 – 2.2)

  1. *Estimates of risk are adjusted for all variables included in the table using logistic regression.