Hong, You Mi
Cho, Dong Hue
Kim, Jin Kyu
Article History
Received: 18 March 2023
Accepted: 16 June 2023
First Online: 8 August 2023
Declarations
:
: The KNN registry was approved by the Institutional Review Board (IRB) at each participating hospital. Informed consent was obtained from parents at enrollment by the NICU participating in the KNN. Informed consent was waived by the IRB for infants who died in the delivery room or at the early stage in the NICU before informed consent was able to be obtained for chart review. The names of the IRB of the KNN participating hospitals were as follows: The IRB of Ajou University Hospital, Asan Medical Center, Busan ST Mary’s Hospital, CHA Bundang Medical Center, CHA University, CHA Gangnam Medical Center, CHA University, Cheil General Hospital & Women’s Healthcare Center, Chonnam National University Hospital, Chosun University Hospital, Chung-Ang University Hospital, Chungbuk National University, Chungnam National University Hospital, Daegu Catholic University Medical Center, Dong-A University Hospital, Dongguk University Ilsan Hospital, Eulji General Hospital, Eulji University Hospital, Ewha Womans University Medical Center, Gachon University Gil Medical Center, Gangnam Severance Hospital, GangNeung Asan Hospital, Gyeongsang National University Hospital, Hanyang University Guri Hospital, Hanyang University Medical Center, Inha University Hospital, Inje University Busan Paik Hospital, Inje University Haeundae Paik Hospital, Inje University Ilsan Paik Hospital, Inje University Sanggye Paik Hospital, Jeju National University Hospital, Jeonbuk National University Hospital, Kangbuk Samsung Hospital, Kangdong, Sacred Heart Hospital, Kangnam Sacred Heart Hospital, Kangwon National University Hospital, Keimyung University Dongsan Medical Center, Konkuk University Medical Center, Konyang University Hospital, Korea, University Anam Hospital, Korea University Ansan Hospital, Korea University Guro Hospital, Kosin University, Gospel Hospital, Kyung Hee University Hospital at Gangdong, Kyung Hee University Medical center, Kyungpook National University Chilgok Hospital, Kyungpook National University Hospital, National Health Insurance Service Ilsan Hospital, Pusan National University Children’s Hospital, Pusan National University Hospital, Samsung Changwon Medical Center, Samsung Medical Center, Seoul Metropolitan Government-Seoul National, University Boramae Medical Center, Seoul National University Bundang Hospital, Seoul National University Hospital, Severance Hospital, Soonchunhyang University Hospital Cheonan, Soonchunhyang University Hospital Bucheon, Soonchunhyang University Hospital Seoul, Sungae Hospital, The Catholic University of Korea, Bucheon ST. Mary’s Hospital, The Catholic University of Korea Seoul ST. Mary’s Hospital, The Catholic University of Korea ST. Vincent’s Hospital, The Catholic University of Korea Yeouido ST. Mary’s Hospital, The Catholic University of Korea Uijeongbu ST. Mary’s Hospital, Ulsan University Hospital, Wonju Severance Christian Hospital, Wonkwang University School of Medicine & Hospital, and Yeungnam University Hospital. Trained staff used a standardized operating procedure to collect demographic and clinical information. The present study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments. De-identified KNN data were approved by the IRB of Jeonbuk National University Hospital for further analysis and interpretation.
: Not applicable.
: The authors declare no competing interests.