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Table 4 Regression analysis for the relationship between serum bilirubin levels and number of acute exacerbation per yeara

From: Serum bilirubin level is associated with exercise capacity and quality of life in chronic obstructive pulmonary disease

 

Whole Group

GOLD I-II

GOLD III-IV

Estimated mean (SE)

P-value

Estimated mean (SE)

P-value

Estimated mean (SE)

P-value

Univariate

 Baseline bilirubin

0.64 (0.19)

0.001

0.38 (0.23)

0.103

0.86 (0.27)

0.002

 Clustered bilirubin

0.30 (0.21)

0.156

−0.15 (0.22)

0.502

0.62 (0.23)

0.008

Multivariateb

 Baseline bilirubin

0.62 (0.18)

0.001

0.41 (0.24)

0.083

0.75 (0.27)

0.005

 Clustered bilirubin

0.29 (0.15)

0.064

−0.08 (0.21)

0.704

0.45 (0.14)

0.001

  1. a ‘baseline bilirubin’ is the results of regression analysis for clinical outcomes according to the baseline bilirubin levels. ‘Clustured analysis’ is the results of regression analysis for clinical outcomes and repeated measured serum bilirubin levels
  2. b adjusted with age, sex, body mass index, smoking (current and former), baseline FEV1 GOLD Global Initiative for Chronic Obstructive Lung Disease., SE standard error
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Respiratory Research

ISSN: 1465-993X

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