1.Recent Spatial and Temporal Trends of Malaria in Korea
Yeong Hoon KIM ; Hye-Jin AHN ; Dongjae KIM ; Sung-Jong HONG ; Tong-Soo KIM ; Ho-Woo NAM
The Korean Journal of Parasitology 2021;59(6):585-593
This study was done to provide an analytical overview on the latest malaria infection clusters by evaluating temporal trends during 2010-2019 in Korea. Incheon was the most likely cluster (MLC) for all cases of malaria during the total period. MLCs for P. falciparum, vivax, malariae, ovale, and clinically diagnosed malaria without parasitological confirmation were Jeollanam-do, Incheon, Gangwon-do, Gyeongsangnam-do, and Jeollabuk-do, respectively. Malaria was decreasing in most significant clusters, but Gwangju showed an increase for all cases of malaria, P. vivax and clinically diagnosed cases. Malaria overall, P. falciparum and P. vivax seem to be under control thanks to aggressive health measures. This study might provide a sound scientific basis for future control measures against malaria in Korea.
2.Relationship between Clonorchis sinensis Infection and Cholangiocarcinoma in Korea
Hwa Sun KIM ; Ho-Woo NAM ; Hye-Jin AHN ; Dongjae KIM ; Yeong Hoon KIM
The Korean Journal of Parasitology 2022;60(4):261-271
This study provides an overview of the current status of clonorchiasis and cholangiocarcinoma (CCA), and their relationship in Korea during 2012-2020. Data were obtained from the Health Insurance Review & Assessment Service of Korea. Cluster, trend, and correlation analyses were performed. Gyeongsangnam-do and Seoul had the highest average number of cases (1,026 and 4,208) and adjusted rate (306 and 424) for clonorchiasis and CCA, respectively. The most likely clusters (MLC) for clonorchiasis and CCA were Busan/Gyeongsangnam-do/Ulsan/Daegu/Gyeongsangbuk-do (Relative Risk; RR = 4.55, Likelihood Ratio; LLR = 9,131.115) joint cluster and Seoul (RR = 2.29, LLR = 7,602.472), respectively. The MLC for clonorchiasis was in the southeastern part of Korea, while that for CCA was in the southern part. Clonorchiasis showed a decreasing trend in the southeastern districts, while increased in the southwestern districts. Cities in the central region had a decreasing trend, while the western districts had an increasing trend. In most adults (30-59), infection rate of clonorchiasis showed a significant decrease until 2018, while thereafter increased, although not significant. CCA showed a sharply decreasing tendency. The incidence of clonorchiasis and CCA were positively correlated. In general, the correlation was weak (r = 0.39, P < 0.001), but it was strongly positive around the 4 river basins (r = 0.74, P < 0.001). This study might provide an analytic basis for developing an effective system against clonorchiasis and CCA.
3.Alternative Therapy for Atopic Dermatitis.
Bo Kyung KOH ; Hyun Jeong LEE ; Dongjae KIM ; Seog Jun HA ; Hae Jung HA ; Young Min PARK ; Dae Kyu BYUN ; Jin Wou KIM
Korean Journal of Dermatology 2001;39(1):16-21
BACKGROUND: Alternative medicines may be defined as forms of therapy or examination that have no scientific basis and where no effect or diagnostic reliability have been demonstrated by scientific methods. Many patients with atopic dermatitis try various forms of alternative medicine, and several studies about the use of alternative medicine in the patients of atopic dermatitis were performed in western countries but not in Korea. OBJECT: This study was performed to evaluate the use of alternative medicine in atopic dermatitis patients. METHODS: 188 patients of atopic dermatitis attending our outpatient clinic responded to questionnaires on the use of alternative medicine and the past history of atopic dermatitis. RESULTS: 136 of 188 patients(72%) reported previous or current use of one or more forms of alternative medicine. Herbal remedies(32.4%) were used most frequently, and health food preparations, spa therapy, and diet changes were also commonly used. The most common motif of using alternative medicine was "just want to try every possible treatment"(48.6%) and main information sources were people without same skin disease(relatives and friends)(50.0%). The majority(75.2%) reported they do not use the alternative medicine now because of the poor result. The use of the alternative medicine was related to the disease duration, and the cost of the atopic dermatitis treatment. CONCLUSIONS: The use of alternative medicine in atopic dermatitis is commonplace and should be of concern to dermatologists.
Ambulatory Care Facilities
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Complementary Therapies
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Dermatitis, Atopic*
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Diet
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Food, Organic
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Humans
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Korea
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Skin
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Surveys and Questionnaires
4.Spatiotemporal Clusters and Trend of Trichomonas vaginalis Infection in Korea
Yeong Hoon KIM ; Hye-Jin AHN ; Dongjae KIM ; Ho-Woo NAM
The Korean Journal of Parasitology 2022;60(2):97-107
This study was done to provide an overview of the latest trichomoniasis status in Korea by finding disease clusters and analyzing temporal trends during 2012-2020. Data were obtained from the Health Insurance Review & Assessment Service (HIRA) of Korea. SaTScan and Joinpoint programs were used for statistical analyses. Gyeonggi-do had the highest average population and highest number of cases. The high incidence of T. vaginalis infections were observed among women aged 40-49 and 30-39 years (33,830/year and 33,179/year, respectively). Similarly, the 40-49 and 30-39 age group in men showed the highest average cases (1,319/year and 1,282/year, respectively). Jeollabuk-do was the most likely cluster, followed by Busan/Gyeongsangnam-do/Ulsan/Daegu and Jeju-do and Gwangju. Urban and rural differences were prominent. Trichomoniasis has decreased significantly in most clusters, except for Incheon. Trichomoniasis was decreasing in women recently after peaking around 2014. Men showed different trends according to age. Trichomoniasis was increasing in the 10-39 age groups, but decreasing in the 40-59 age groups. This study might provide an analytic basis for future health measures, policy-makers, and health authorities in developing effective system for prevention of trichomoniasis.
5.Increasing Accessibility to Metabolic Bariatric Surgery: A Qualitative Study Based on In-Depth Interviews of Korean Adult Patients With Severe Obesity
Yoona CHUNG ; MinKyoung JUN ; Dongjae JEON ; Bomina PAIK ; Yong Jin KIM
Journal of Metabolic and Bariatric Surgery 2023;12(2):44-56
Purpose:
After the initiation of national health insurance coverage in 2019, the number of metabolic bariatric surgeries (MBSs) in Korea has been increasing. Despite evidence regarding its efficacy, many candidates are hesitant regarding surgery for the treatment of severe obesity. This study interviewed patients who received MBS to further understand potential barriers and increase the accessibility of MBS.
Materials and Methods:
Eight interviewees who received MBS after 2019 participated. The interviews began in mid-July 2022 over approximately a month. Each one-on-one interview lasted a few hours and was done in person. The interviews were transcribed, and the results were analyzed based on grounded theory.
Results:
This study focused on the quality of life before and after MBS. On a scale of 1 to 10, all patients had a high degree of satisfaction in quality of life after surgery (average score: 8.9, sleeve gastrectomy: 8.8, and bypass surgery: 9). Scores did not differ depending on procedure type, but factors that caused satisfaction and dissatisfaction were distributed differently between the 2 procedures.
Conclusion
Quality of life is significantly improved for patients undergoing MBS despite discomfort after surgery. Further promotion of the understanding of obesity as a chronic progressive disease is needed for both surgical candidates and the public to increase acceptance of MBS.
6.High ligation with posterior wall repair for inguinal hernia repair in young adults: a nationwide cohort study
Kil-yong LEE ; Jaeim LEE ; Dongjae KIM ; Seong Taek OH
Annals of Surgical Treatment and Research 2024;106(4):231-236
Purpose:
This study evaluated the difference in the recurrence of inguinal hernia in young adult patients who underwent either high ligation alone or high ligation with posterior wall repair using nationwide data.
Methods:
This retrospective study included young adult patients (aged 16–30 years) who underwent surgery for inguinal hernia between June 1, 2013 and December 31, 2020. Data from the National Health Information Database from the Korea Health Insurance Service were used for this study. Patients were divided into 2 groups (high ligation alone and posterior wall repair). The primary outcome was the difference in recurrent inguinal hernia surgeries between the 2 groups.
Results:
Among the 10,803 patients included in the study, 947 underwent high ligation alone, and 9,856 underwent high ligation with posterior wall repair. Recurrence was observed in 18 patients (1.9%) in the high ligation only group and 84 (0.85%) in the high ligation with posterior wall repair group. Log-rank test findings revealed that recurrence was less frequent in the high ligation with posterior wall repair group than in the high ligation only group (P = 0.003). In the multivariate analysis of factors influencing recurrence, posterior wall repair (hazard ratio, 0.241; P = 0.001) was shown to significantly lower the recurrence.
Conclusion
Posterior wall repair might be necessary for inguinal hernia repair in young adults.
7.Clusters of Toxoplasmosis in Gyodong-Myeon and Samsan-Myeon, Ganghwa-Gun, Korea
Woojin KIM ; Yoon Kyung CHANG ; Tong-Soo KIM ; Sung-Jong HONG ; Hye-Jin AHN ; Ho-Woo NAM ; Dongjae KIM
The Korean Journal of Parasitology 2020;58(5):493-497
The purpose of this study is to find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in 2 islands of Gyodong-myeon and Samsan-myeon in Ganghwa-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in 2 islands from 2010 to 2013 were analyzed to detect clusters of the infection. The cluster was investigated using the SatScan program which is based on Kulldorff’s scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelyhood ratio. Jiseok-ri was found to be a cluster in Gyodong-myeon and Ha-ri was the cluster in Samsan-myeon. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.
8.Clusters of Toxoplasmosis in Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea
Jihye YU ; Woojin KIM ; Yoon Kyung CHANG ; Tong-Soo KIM ; Sung-Jong HONG ; Hye-Jin AHN ; Ho-Woo NAM ; Dongjae KIM
The Korean Journal of Parasitology 2021;59(3):251-256
We find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in Gyodong-myeon and Samsan-myeon of Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in the areas in 2019 were analyzed to detect clusters of the infection. The cluster was investigated using the SaTScan program which is based on Kulldorff’s scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelihood ratio. Jiseok-ri and Insa-ri were found to be a cluster in Gyodong-myeon and Seokmo-ri was the cluster in Samsan-myeon. Yangji-ri and Igil-ri were found to be a cluster in Cheorwon-gun and Madal-ri and Baebong-ri were the cluster in Goseong-gun. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.
9.Clusters of Toxoplasmosis in Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea
Jihye YU ; Woojin KIM ; Yoon Kyung CHANG ; Tong-Soo KIM ; Sung-Jong HONG ; Hye-Jin AHN ; Ho-Woo NAM ; Dongjae KIM
The Korean Journal of Parasitology 2021;59(3):251-256
We find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in Gyodong-myeon and Samsan-myeon of Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in the areas in 2019 were analyzed to detect clusters of the infection. The cluster was investigated using the SaTScan program which is based on Kulldorff’s scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelihood ratio. Jiseok-ri and Insa-ri were found to be a cluster in Gyodong-myeon and Seokmo-ri was the cluster in Samsan-myeon. Yangji-ri and Igil-ri were found to be a cluster in Cheorwon-gun and Madal-ri and Baebong-ri were the cluster in Goseong-gun. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.
10.Cluster of Parasite Infections by the Spatial Scan Analysis in Korea
Kyoung-Eun BAE ; Yoon Kyung CHANG ; Tong-Soo KIM ; Sung-Jong HONG ; Hye-Jin AHN ; Ho-Woo NAM ; Dongjae KIM
The Korean Journal of Parasitology 2020;58(6):603-608
This study was performed to find out the clusters with high parasite infection risk to discuss the geographical pattern. Clusters were detected using SatScan software, which is a statistical spatial scan program using Kulldorff’s scan statistic. Information on the parasitic infection cases in Korea 2011-2019 were collected from the Korea Centers for Disease Control and Prevention. Clusters of Ascaris lumbricoides infection were detected in Jeollabuk-do, and T. trichiura in Ulsan, Busan, and Gyeongsangnam-do. C. sinensis clusters were detected in Ulsan, Daegu, Busan, Gyeongsangnam-do, and Gyeongsangbuk-do. Clusters of intestinal trematodes were detected in Ulsan, Busan, and Gyeongsangnam-do. P. westermani cluster was found in Jeollabuk-do. E. vermicularis clusters were distributed in Gangwon-do, Jeju-do, Daegu, Daejeon, and Gwangju. This clustering information can be referred for surveillance and control on the parasitic infection outbreak in the infection-prone areas.