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Kang B, Kim JE, Jung JH, Choe JY, Kim MJ, Choe YH, Kim S, Koh H, Lee YM, Lee JH, Lee Y, Lee JH, Lee HJ, Jang HJ, Choi Y, Choi SY, Kim JY, Choe BH. Korean Children and Adolescents with Crohn's Disease Are More Likely to Present with Perianal Fistulizing Disease at Diagnosis Compared to Their European Counterparts. Pediatr Gastroenterol Hepatol Nutr 2020; 23:49-62. [PMID: 31988875 PMCID: PMC6966217 DOI: 10.5223/pghn.2020.23.1.49] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 12/26/2019] [Indexed: 12/11/2022] Open
Abstract
PURPOSE We aimed to investigate the disease phenotype of Korean pediatric Crohn's disease (CD) patients at diagnosis according to the Paris classification by comparison with patients from the European multicenter 5-years recruitment of children with newly developed IBD (EUROKIDS registry). METHODS Korean children and adolescents who had been newly diagnosed with CD at the age of <18 years during 2013-2016 were included in this multicenter retrospective study. Disease phenotype at diagnosis was classified according to the Paris classification, and compared with the published data from the EUROKIDS study. RESULTS A total of 255 patients were included. The median diagnosis age was 14.7 years (range, 0.8-17.9 years). No significant difference was observed in male-to-female ratio with EUROKIDS (1.9:1 vs. 1.45:1, p=0.062). The proportion of children aged <10 years was significantly lower in Koreans (7.1% vs. 19.6%, p<0.001). Colonic disease was less prominent (10.0% vs. 27.3%, p<0.001), while upper GI involvement was more prominent in Korean children (59.3% vs. 46.2%, p<0.001). The proportion with perianal fistulizing disease at diagnosis was significantly higher in Korean patients (44.8% vs. 8.2%, p<0.001). A separate analysis of Korean patients revealed that perianal fistulizing disease at diagnosis was positively associated with male sex and body mass index z-score (odds ratio [OR]=2.12, 95% confidence interval [CI]=1.20-3.76, p=0.010; and OR=1.29, 95% CI=1.05-1.58, p=0.015, respectively). CONCLUSION Approximately half of pediatric CD patients in Korea present with perianal fistulas and/or abscesses at diagnosis, which is a distinct feature of CD in Korean children and adolescents compared to their European counterparts. An underlying genetic difference between ethnicities may play a role in this expression of different phenotypes in pediatric CD.
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Affiliation(s)
- Ben Kang
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, Korea.,Crohn's and Colitis Association in Daegu-Gyeongbuk (CCAiD), Daegu, Korea
| | - Jung Eun Kim
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, Korea.,Crohn's and Colitis Association in Daegu-Gyeongbuk (CCAiD), Daegu, Korea
| | - Jae Hun Jung
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jae Young Choe
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Mi Jin Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yon Ho Choe
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung Kim
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hong Koh
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yoo Min Lee
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Jee Hyun Lee
- Department of Pediatrics, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Yoon Lee
- Department of Pediatrics, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Ji-Hyuk Lee
- Department of Pediatrics, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Hae Jeong Lee
- Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Hyo-Jeong Jang
- Crohn's and Colitis Association in Daegu-Gyeongbuk (CCAiD), Daegu, Korea.,Department of Pediatrics, Keimyung University School of Medicine, Daegu, Korea
| | - Youjin Choi
- Department of Pediatrics, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - So Yoon Choi
- Department of Pediatrics, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Ju Young Kim
- Department of Pediatrics, Eulji University School of Medicine, Daejeon, Korea
| | - Byung-Ho Choe
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, Korea.,Crohn's and Colitis Association in Daegu-Gyeongbuk (CCAiD), Daegu, Korea
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