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Table 3 Reproducibility of BNP and log(BNP) over 12 weeks in patients with chronic stable HF.a

From: Effects of ambient air pollution on functional status in patients with chronic congestive heart failure: a repeated-measures study

  

Variance

  
 

Number of Subjects/Samples

Total

Between-Person

Within-Person

ICC

CVWP

BNP

      

   All Subjects

28/82

150,699

128,588

22,111

0.85

45.2%

   Control Group Only

14/42

169,503

149,538

19,965

0.88

41.6%

Log(BNP)

      

   All Subjects

28/82

2.01

1.80

0.22

0.89

9.0%

   Control Group Only

14/42

2.53

2.38

0.14

0.94

7.7%

  1. a HF: heart failure; ICC: intraclass correlation coefficient; CVWP: within-person coefficient of variation.
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Environmental Health

ISSN: 1476-069X