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Clinical characteristics of toxoplasmosis patients in Korea: A retrospective study using health insurance review and assessment service data and electronic medical records
1Department of Tropical Medicine and Parasitology, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul 03080, Korea 2MediCheck Research Institute, Korea Association of Health Promotion, Seoul 07649, Korea 3Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul 03722, Korea 4Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul 03722, Korea 5Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul 03080, Korea 6Division of Infectious Diseases, Department of Internal Medicine, Inha University College of Medicine, Incheon 22332, Korea 7Division of Infectious Disease Response, Chungcheong Regional Center for Disease Control and Prevention, Daejeon 35208, Korea 8Seoul National University Bundang Hospital, Seongnam 13620, Korea
Received: January 4, 2024; Accepted: August 19, 2024.
Abstract
This study aimed to elucidate the clinical characteristics of patients diagnosed with toxoplasmosis in Korea. We collected and analyzed the specific research data of 5,917 patients from the Health Insurance Review and Assessment (HIRA; 2007–2020) and 533 electronic medical records (EMRs; 2003–2021) of Korean patients. The HIRA data showed that toxoplasmosis is an endemic disease that occurs constantly in Korea, with a large proportion of patients complaining of ocular symptoms. Of the 533 patients for whom EMR data were available, 54.6% were diagnosed with toxoplasmosis; ocular toxoplasmosis (35.7%), congenital toxoplasmosis (4.7%), cerebral toxoplasmosis (4.1%), pulmonary toxoplasmosis (0.4%), and toxoplasma hepatitis (0.6%), in order of frequency. In ocular cases, 54.4% of the patients had diverse ocular pathologies. Toxoplasmosis in Korea is characterized by a high frequency of ocular symptoms, most patients are adults, and 51.8% of patients with seropositivity were positive for IgG, suggesting prior infection. This study highlights that patients with ocular symptoms are included in the major diagnosis group for acquired toxoplasmosis in Korea.
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