PMID- 37667583 OWN - NLM STAT- MEDLINE DCOM- 20230906 LR - 20230907 IS - 1598-6357 (Electronic) IS - 1011-8934 (Print) IS - 1011-8934 (Linking) VI - 38 IP - 35 DP - 2023 Sep 4 TI - Developing Operational Definitions Related to Helicobacter pylori Eradication Therapy. PG - e278 LID - 10.3346/jkms.2023.38.e278 [doi] LID - e278 AB - BACKGROUND: The lack of well-established operational definitions is a major limitation of Helicobacter pylori eradication studies that use secondary databases. We aimed to develop and validate operational definitions related to H. pylori eradication therapy. METHODS: Operational definitions were developed by analyzing a nationwide H. pylori eradication registry and validated using real-world data from hospital medical records. The primary endpoint was the sensitivity of the operational definitions in identifying individuals who received H. pylori eradication therapy. The secondary endpoint was the sensitivity and specificity of the operational definition in identifying successful H. pylori eradication therapy. RESULTS: H. pylori eradication therapy was defined as a prescription for one of the following combinations: 1) proton pump inhibitor (PPI) + amoxicillin + clarithromycin, 2) PPI + amoxicillin + metronidazole, 3) PPI + metronidazole + tetracycline, 4) PPI + amoxicillin + levofloxacin, 5) PPI + amoxicillin + moxifloxacin, or 6) PPI + amoxicillin + rifabutin. In the validation set, the sensitivity of the operational definition for identifying individuals who received H. pylori eradication therapy was 99.7% and 99.8% for the first- and second-line therapies, respectively. Operational definition to determine success or failure of the H. pylori eradication therapy was developed based on a confirmatory test and the prescription of rescue therapy. The sensitivity and specificity of the operational definition for predicting successful eradication were 97.6% and 91.4%, respectively, in first-line therapy and 98.6% and 54.8%, respectively, in second-line therapy. CONCLUSION: We developed and validated operational definitions related to H. pylori eradication therapy. These definitions will help researchers perform various H. pylori eradication-related studies using secondary databases. CI - (c) 2023 The Korean Academy of Medical Sciences. FAU - Park, Chan Hyuk AU - Park CH AUID- ORCID: 0000-0003-3824-3481 AD - Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea. FAU - Jung, Sun-Young AU - Jung SY AUID- ORCID: 0000-0003-2032-112X AD - College of Pharmacy, Chung-Ang University, Seoul, Korea. AD - Department of Global Innovative Drugs, The Graduate School of Chung-Ang University, Seoul, Korea. FAU - Lee, Ju Won AU - Lee JW AUID- ORCID: 0000-0003-2956-3344 AD - College of Pharmacy, Chung-Ang University, Seoul, Korea. AD - Department of Global Innovative Drugs, The Graduate School of Chung-Ang University, Seoul, Korea. FAU - Yang, Hyo-Joon AU - Yang HJ AUID- ORCID: 0000-0002-0265-672X AD - Division of Gastroenterology, Department of Internal Medicine and Gastrointestinal Cancer Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Kim, Joon Sung AU - Kim JS AUID- ORCID: 0000-0001-9158-1012 AD - Division of Gastroenterology, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. FAU - Kim, Beom Jin AU - Kim BJ AUID- ORCID: 0000-0002-0938-6697 AD - Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Choi, Soo In AU - Choi SI AUID- ORCID: 0000-0001-6156-5898 AD - Division of Gastroenterology, Department of Internal Medicine, Inje University Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea. FAU - Seo, Seung In AU - Seo SI AUID- ORCID: 0000-0003-4417-0135 AD - Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea. FAU - Lee, Joongyub AU - Lee J AUID- ORCID: 0000-0003-2784-3772 AD - Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea. FAU - Kim, Jae Gyu AU - Kim JG AUID- ORCID: 0000-0002-4841-9404 AD - Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea. jgkimd@cau.ac.kr. CN - Korean Research Association for Helicobacter and Microbiome LA - eng PT - Journal Article DEP - 20230904 PL - Korea (South) TA - J Korean Med Sci JT - Journal of Korean medical science JID - 8703518 RN - 140QMO216E (Metronidazole) RN - 0 (Anti-Bacterial Agents) RN - 804826J2HU (Amoxicillin) RN - 0 (Proton Pump Inhibitors) SB - IM MH - Humans MH - *Helicobacter pylori MH - Metronidazole/therapeutic use MH - Research Design MH - Anti-Bacterial Agents/therapeutic use MH - Amoxicillin/therapeutic use MH - Proton Pump Inhibitors/therapeutic use PMC - PMC10477078 OTO - NOTNLM OT - Eradication OT - Helicobacter pylori OT - Operational Definition COIS- The authors have no potential conflicts of interest to disclose. EDAT- 2023/09/05 06:42 MHDA- 2023/09/06 06:42 PMCR- 2023/09/04 CRDT- 2023/09/05 02:43 PHST- 2023/02/19 00:00 [received] PHST- 2023/04/26 00:00 [accepted] PHST- 2023/09/06 06:42 [medline] PHST- 2023/09/05 06:42 [pubmed] PHST- 2023/09/05 02:43 [entrez] PHST- 2023/09/04 00:00 [pmc-release] AID - 38.e278 [pii] AID - 10.3346/jkms.2023.38.e278 [doi] PST - epublish SO - J Korean Med Sci. 2023 Sep 4;38(35):e278. doi: 10.3346/jkms.2023.38.e278.