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Table 3 Hazard ratios and 95% confidence intervals of atrial fibrillation by birth weight category, ARIC study, 1996-2008

From: Birth weight and the risk of atrial fibrillation in whites and African Americans: the Atherosclerosis Risk In Communities (ARIC) study

 

Birth weight categories

 
 

Low

Medium

High

P for trend

AF events, N

49

735

98

 

Person-years

4,662

88,982

11,095

 

Incidence Rate* (95% CI)

10.5 (7.9-13.8)

8.3 (7.7-8.9)

8.8 (7.2-10.7)

 

Model 1

1.37 (1.03, 1.84)

1 (ref.)

1.00 (0.81, 1.23)

0.21

Model 2

1.33 (0.99, 1.78)

1 (ref.)

1.00 (0.81, 1.24)

0.29

Model 3

1.42 (1.06, 1.90)

1 (ref.)

0.86 (0.69, 1.07)

0.01

  1. *Incidence rate per 1000 person years.
  2. Model 1: Cox proportional hazards model adjusted for age, race and gender.
  3. Model 2: As model 1, additionally adjusted for study center, income, and education.
  4. Model 3: As model 2, additionally adjusted for diabetes, systolic blood pressure, hypertension medications, smoking, height, body mass index, prevalent. myocardial infarction and heart failure.
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