Prevalence of renal and hepatobiliary disease, laboratory abnormalities, and potentially toxic medication exposures among persons with COPD.

1.59%; P < 0.05), but the difference in moderate or severe liver disease did not reach statistical significance (0.79% versus 0.36%). 7 In a large cohort of persons from the United Kingdom who were free of diagnosed hepatobiliary disease, higher levels of bilirubin were associated with a slightly lower risk of COPD (6% decrease in risk per 0.1 mg/dL increase in serum bilirubin level). 8 In a study of 666 per

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