Hospitalized acute exacerbation in chronic obstructive pulmonary disease - impact on long-term renal outcomes.

"Declarations Ethics approval and consent to participateThe study was approved by the Institutional Review Board of the University of Hong Kong and Hospital Authority Hong Kong West Cluster (UW 23–356). Clinical trialsThis study is not a clinical trial, and no necessary registration details will be provided. Notation of prior abstract publication/presentationNil. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This research did not receive any funding from agencies in the public, commercial, or not-for-profit sectors. D.Y.H. Yap received research donations from the Wai Im Charitable Foundation, Chan Sui Kau Family Benefits and Charitable Foundation, So Ka Wing and Lee Sau Ying Charitable Foundation, and Mr & Mrs Tam Wing Fun Edmund Renal Research Fund."