Jong Woo Hahn
Seoul National University · Medicine
About the Lab
Professor Jong Woo Hahn's research lab specializes in epidemiological and clinical studies focusing on rare and chronic gastrointestinal and autoimmune disorders, including autoimmune hepatitis, chronic rhinosinusitis, and achalasia. The lab conducts large-scale systematic reviews and meta-analyses to assess global, regional, and national trends in incidence, prevalence, and disease burden, with a strong emphasis on population-based data and health policy implications. The lab also investigates genetic variants in rare pediatric conditions such as congenital internal pudendal artery occlusion (CIPO), integrating clinical, radiological, and pathological findings. Their work bridges clinical medicine, public health, and health policy to inform global health strategies.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15Background Autoimmune hepatitis (AIH) varies significantly in incidence and prevalence across countries and regions. We aimed to examine global, regional, and national trends in incidence and prevalence of AIH from 1970 to 2022. Methods We conducted a thorough search of the PubMed/MEDLINE, Embase, CINAHL, Google Scholar, and Cochrane databases from database inception to August 9, 2023, using the search term "autoimmune hepatitis" in combination with "incidence," "prevalence," or "trend." Only ge
OBJECTIVE: Data on the global prevalence of chronic rhinosinusitis (CRS) is significantly varied and limited across countries and over time. Therefore, we aimed to conduct a comprehensive investigation into the global, regional, and national burden of CRS from the years 1980 to 2021, as well as identify those factors that influence levels of such burden. DESIGN: We conducted a systematic review and meta-analysis of general population-based observational studies focusing on CRS. We calculated poo
BACKGROUND: Achalasia poses a significant socioeconomic burden, yet global trends remain undocumented. This study aims to describe the worldwide trends in the incidence and prevalence of achalasia from 1925 to 2021 and explore their correlation with various factors through a comprehensive systematic review. METHODS: We searched the PubMed/MEDLINE, Embase, and Cochrane databases from inception to 30 June 2023, to identify studies reporting the incidence or prevalence of achalasia in the general p
Global age-standardized liver disease-related mortality has increased significantly and continues to emerge as a crucial global public health issue. Further investigation into liver disease-related mortality rates in Africa is needed, and updating policies is necessary to effectively manage the global burden of liver disease.
BACKGROUND/AIMS: variants in Korean patients with CIPO. METHODS: was performed. RESULTS: missense variants were found in 6 patients (50.0%). The p.Arg257Cys variant was found in 3 patients, and p.Arg63Gln and p.Arg178His variants were found in 1 patient each. A novel variant, p.Ile193Phe, was found in 1 patient. Three patients were diagnosed at birth, 2 at the age of 1 year, and 1 at 3 years of age. Abnormal prenatal genitourinary ultrasonographic findings were found in all 6 patients; microcolo
Abstract Additives used in tobacco product manufacturing are currently in the focus of public discussions with regard to potentially increased consumer health risks on account of certain additives. In addition, a few additives are suspected to enhance the addictiveness of tobacco products. In 2006, the German Federal Ministry for Food, Agriculture and Consumer Protection (BundesministeriumfuerErnaehrung, Landwirtschaft und Verbraucherschutz, BMELV) commissioned a research project intended to pro
BACKGROUND: Inflammatory bowel disease (IBD) is associated with an increased risk of Colorectal cancer (CRC), and its most important risk factors are the duration and extent of the disease. Pediatric-onset inflammatory bowel disease has a tendency for a more extensive, more severe, and longer predicted disease duration than adult-onset inflammatory bowel disease. This study aimed to identify the clinical characteristics of patients with CRC related to pediatric-onset IBD and consider the appropr
BACKGROUND AND AIM: Advances in molecular genetics have uncovered causative genes responsible for neonatal cholestasis. Panel-based next-generation sequencing has been used clinically in infants with neonatal cholestasis. We aimed to evaluate the clinical application of single-gene testing and next-generation sequencing and to develop a diagnostic algorithm for neonatal intrahepatic cholestasis. METHODS: From January 2010 to July 2021, patients suspected of having neonatal intrahepatic cholestas
BACKGROUND: Glycogen storage disease type VI (GSD VI) is a rare disease in which liver glycogen metabolism is impaired by mutations in the glycogen phosphorylase L (PYGL). This study aimed to examine the clinical features, genetic analyses, and long-term outcomes of patients with GSD VI in Korea. METHODS: From January 2002 to November 2022, we retrospectively reviewed patients diagnosed with GSD VI using a gene panel at Seoul National University Hospital. We investigated the clinical profile, li
Research Areas
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