Herbal medicine use in Republic of Korea to alleviate side effects of COVID-19 vaccines: A cross-sectional study / 中西医结合学报

OBJECTIVE@#Coronavirus disease 2019 (COVID-19) has spread worldwide, and several virus variants have emerged. Vaccines are administered to help prevent the infection. In Republic of Korea, most people take herbal medicine. This study investigated the use of herbal medicine to counter the side effects of COVID-19 vaccines.@*METHODS@#This cross-sectional study was conducted using an online survey. Chi-square tests were used to determine differences in the use of herbal medication according to sociodemographic characteristics. Independent two-sample and paired t-tests were performed to examine the effect and satisfaction of herbal medicine use for countering the side effects of COVID-19 vaccines. One-way analysis of variance was used to determine vaccine-related differences.@*RESULTS@#A total of 233 and 181 participants received the first and second doses of COVID-19 vaccines, respectively. The majority of herbal medicine users were in their thirties, had a bachelor's degree, suffered from side effects of vaccination, and received Vaxzevria for their first COVID-19 vaccine dose and Comirnaty for their second dose. The herbal medicine group had a higher satisfaction level of post-vaccination side effects than the non-herbal medicine group (P < 0.0001). The numeric rating scale scores for vaccination side effects were lower among participants who took herbal medication to alleviate those symptoms (P < 0.0001). The most commonly used herbal formula was Shuanghetang.@*CONCLUSION@#A third of participants receiving COVID-19 vaccines used herbal medication to counter the side effects of vaccination. The use of herbal medicine was associated with age, education level, vaccine brand, and whether side effects of vaccination occurred. Herbal medication use was associated with greater satisfaction compared to vaccine recipients not using herbal medication. Please cite this article as: Yoon HC. Herbal medicine use in Republic of Korea to alleviate side effects of COVID-19 vaccines: A cross-sectional study. J Integr Med. 2023; 21(4):361-368.

Report on the 5th Japan-Korea Primary Care Exchange Programme / 日本プライマリ・ケア連合学会誌

The Japan-Korea Primary Care Exchange Programme, which is an international project held by the Japan Primary Care Association and Korean Academy of Family Medicine, provides young family physicians opportunities to visit annual conferences and training programs each year. This article reports the history and several topics that Japanese delegates in 2018 learned about in Korea regarding family medicine: "Outpatient Department" "Health Information Systems" "Healthcare System for the Rapidly Aging Population," and "The Current Situation and Issues in Long-term Care Insurance."

Comparisons of food security, dietary behaviors and nutrient intakes between adult North Korean Refugees in South Korea and South Koreans

BACKGROUND/OBJECTIVES: North Korean refugees (NKRs) in South Korea are a unique population as they must adapt in a new country with similar cultural traits but different social, political, and economic systems, but little research has been conducted on diet and nutrition in this population. This study examined food security, dietary behaviors, and nutrient intakes among adult NKRs living in South Korea and compared them to those of South Koreans.SUBJECTS/METHODS: The subjects were 139 adult NKRs (25 men, 114 women) living in the Seoul metropolitan area, and 417 age- and sex-matched South Korean controls (SKCs; 75 men, 342 women) selected from the Korea National Health and Nutrition Examination Survey (KNHANES). Food security and dietary behaviors (meal skipping, eating-out, meals with family, nutrition education and counseling, and nutrition label knowledge and utilization) were obtained using self-administered questionnaires. Nutrient intakes were assessed by 24-hr recall. The statistical analysis was performed using IBM SPSS ver. 23.0.RESULTS: In South Korea, food security had improved over the previous 12 months, but remained significantly poorer for NKR women than SKC women. Meal skipping was three times more frequent than for SKCs and eating-out was rare. Average energy intake was 1,509 kcal for NKR men and 1,344 kcal for NKR women, which was lower than those of SKCs (2,412 kcal and 1,789 kcal, respectively). Significantly more NKRs (men 24.0%, women 21.9%) showed simultaneously deficient intake in energy, calcium, iron, vitamin A, and riboflavin than SKCs (men 2.7% (P = 0.003), women 7.0% (P < 0.001)). NKR women had a significantly higher index of nutrient quality (INQ) for some nutrients than SK women.CONCLUSIONS: This study reports significant differences in food security, dietary behaviors, and nutrient intakes between NKRs and SKCs. Generally, NKRs reported lower intakes despite improved food security, but relatively good INQs across nutrients. Further research is needed to understand processes of food choice and consumption among NKRs to provide appropriate support aimed at improving diets.

Hermeneutic Phenomenological Study on the Experiences of Employment of Married North Korean Women Defectors Rearing Children

PURPOSE: This study aimed to understand the experiences of married North Korean women's child-rearing, working lives, and their home and work environment in depth.METHODS: This study adopted van Manen's hermeneutic phenomenological method to qualitatively analyze data. The participants were 8 married North Korean women defectors. Data were collected through in-depth interviews and observations from July 4 to August 20, 2018.RESULTS: Nine essential themes emerged: more personal challenges after overcoming a life-threatening crisis; hopes of firmly settling in this land; the wound from the north, which chased them here; a body that becomes stronger through hardship; being stuck in a past full of anxiety and pain; the present is full of hope; hope for the future; sense of alienation from coworkers that cannot be overcome; and sense of power to endure an exhausting work life.CONCLUSION: This study provided a broader understanding of the life and experiences of married women from North Korea. It highlights the need for nurses to recognize their importance in nursing care. The study also suggests that academic and practical approaches for nursing, and basic data for a nursing intervention for married women from North Korea be provided. The study findings can be used as a basis for preparing a national policy that will help North Korean defectors to find employment and gain stability.

Cohort Profile: Firefighter Research on the Enhancement of Safety and Health (FRESH), a Prospective Cohort Study on Korean Firefighters

40 years or new hires with less than 1 year of service.

Disease-Specific Mortality and Prevalence Trends in Korea, 2002–2015

Practice of Endoscopic Retrograde Cholangiopancreatography in Korea: Results from a National Survey / 대한췌담도학회지

BACKGROUND/AIMS: The aim of this study is to describe the outcome of the national survey and to determine the endoscopic retrograde cholangiopancreatography (ERCP) quality in Korea by comparing with the quality indicators. METHODS: We used the database of Health Insurance Review & Assessment Service and then performed anonymous national survey. RESULTS: Completed questionnaires were returned by 129 of 157 ERCP endoscopists. In Korea, annual ERCP rates have been consistently increased over years. Individual ERCP volume was high (>200 per year) in about half of ERCP endoscopists. Most ERCP endoscopists performed all of level I procedures. However, manometry, cholangiopancreatoscopy, and pancreatic procedures were performed mostly in institutions with high hospital volume. The rate of overall success was more than 90% in most ERCP endoscopists. However, the rate of precut sphincterotomy was high in more than a fourth of ERCP endoscopists. Twelve ERCP endoscopists experienced post-ERCP mortality within recent 1 year. ERCP training and radiation protection during ERCP did not meet the standard of quality indicators especially in institutions with low or moderate hospital volume. CONCLUSIONS: Technical issues during ERCP procedures in Korea fulfill the standard of quality indicators. However, a great effort is needed to improve issues about ERCP training and radiation protection.

Association between Three Heavy Metals and Dry Eye Disease in Korean Adults: Results of the Korean National Health and Nutrition Examination Survey

PURPOSE: To investigate the associations between blood heavy metal concentrations and dry eye disease using a Korean population-based survey. METHODS: This study included 23,376 participants >40 years of age who participated in the Korean National Health and Nutrition Examination Survey from 2010 to 2012. Blood concentrations of lead, cadmium, and mercury were measured in all participants. The associations between blood heavy metal concentrations and dry eye disease were assessed using multivariate logistic regression analyses. RESULTS: After adjusting for potential confounders, including age, sex, lifestyle behaviors and sociodemographic factors, the analyses revealed an increased odds ratio (OR) for dry eye disease with higher blood mercury concentrations (tertile 2: OR, 1.22; 95% confidence interval [CI], 0.91 to 1.64; tertile 3: OR, 1.39; 95% CI, 1.02 to 1.89; p = 0.039). The prevalence of dry eye disease was not associated with blood lead (tertile 2: OR, 1.15; 95% CI, 0.87 to 1.51; tertile 3: OR, 0.83; 95% CI, 0.59 to 1.16; p = 0.283) or cadmium (tertile 2: OR, 1.05; 95% CI, 0.77 to 1.44; tertile 3: OR, 1.15; 95% CI, 0.84 to 1.58; p = 0.389) concentrations. There were no significant associations between any of the three heavy metals and dry eye disease in males after adjusting for potential confounding factors, but blood mercury concentrations in females were associated with dry eye disease (tertile 2: OR, 1.18; 95% CI, 0.83 to 1.69; tertile 3: OR, 1.58; 95% CI, 1.12 to 2.24; p = 0.009). CONCLUSIONS: Mercury concentrations in blood were associated with dry eye disease. Our results suggested that controlling environmental exposure to mercury may be necessary to reduce the incidence of dry eye disease.

Effects of a Program to Promote Multicultural Awareness and Multicultural Efficacy toward North Korean Defectors for Nursing Students / 한국간호교육학회지

PURPOSE: The purpose of this study was to develop a program to improve the cultural competence of nursing students related to North Korean defectors and to investigate the effectiveness of the program. METHODS: There were 36 nursing students in the experimental group and 30 in the control group, who were recruited from a university in I-city, Korea. A Chi-square, t-test, and ANOVA with the SPSS/Win 21.0 program were used to analyze the data. RESULTS: After the intervention, the experimental group showed a statistically significant increase in the total score for multicultural awareness toward North Korean defectors over the control group (t=0.85, p=.026). Scores for cognitive area (t=0.89; p=.037), ritual area (t=-0.10, p=.915), and action area (t=1.18, p=.031) increased, but the conscious area score was not statistically significant. The experimental group showed a statistically significant increase in the total score for multi-cultural efficacy for North Korean refugees (t=0.36, p=.030). Scores for cognitive area (t=0.63; p=.029), working area (t=0.05, p=.955), and emotional area (t=0.79 and p=030) increased, but the working area score was not statistically significant. CONCLUSION: It was found that the program to promote multicultural efficacy related to North Korean defectors applied in this study was effective in enhancing multicultural awareness and efficacy of nursing students.

Seroprevalence of Middle East respiratory syndrome coronavirus (MERS-CoV) in public health workers responding to a MERS outbreak in Seoul, Republic of Korea, in 2015

@#The first case of Middle East respiratory syndrome coronavirus (MERS-CoV) in the Republic of Korea was confirmed in May 2015 after a traveller returned from the Middle East. There were 186 cases, including 38 deaths, within two months. The potential of a single MERS-confirmed patient to result in such a large MERS outbreak constitutes a serious global health concern.

Pre-immigration Screening for Tuberculosis in South Korea: A Comparison of Smear- and Culture-Based Protocols / 결핵

BACKGROUND: Tuberculosis (TB) is the most important disease screened for upon patient history review during preimmigration medical examinations as performed in South Korea in prospective immigrants to certain Western countries. In 2007, the U.S. Centers for Disease Control and Prevention (CDC) changed the TB screening protocol from a smear-based test to the complete Culture and Directly Observed Therapy Tuberculosis Technical Instructions (CDOT TB TI) for reducing the incidence of TB in foreign-born immigrants. METHODS: This study evaluated the effect of the revised (as compared with the old) protocol in South Korea. RESULTS: Of the 40,558 visa applicants, 365 exhibited chest radiographic results suggestive of active or inactive TB, and 351 underwent sputum tests (acid-fast bacilli smear and Mycobacterium tuberculosis culture). To this end, using the CDOT TB TI, 36 subjects (88.8 per 105 of the population) were found to have TB, compared with only seven using the older U.S. CDC technical instruction (TI) (p<0.001). In addition, there were six drug-resistant cases which were identified (16.7 per 105 of the population), two of whom had multidrug-resistance (5.6 per 105 of the population). CONCLUSION: The culture-based 2007 TI identified a great deal of TB cases current to the individuals tested, as compared to older U.S. CDC TI.

Protection of Personal Information in Medical Journal Publications / 신경중재치료의학

It aimed to present the definition of personal information based on Korean laws that protect personal information and the process of protection of personal information in journal publishing based on the guidelines of the International Committee of Medical Journal Editors and Committee of Publication Ethics. Two Korean laws relate to the protection of personal information in human subject research: the Personal Information Protection Act and the Bioethics and Safety Act. These laws were enacted to prevent the unauthorized use of Koreans’ personal information including medical information. Personal information can be divided into personally identifiable information including resident registration numbers and sensitive information including health information. To protect personal information in journal publishing, institutional review board (IRB) approval and obtaining informed consent from patients is recommended or mandatory in clinical studies. However, retrospective chart reviews may be exempted from IRB approval, while obtaining informed consent is recommended for all case reports. Journal policies may vary with regard to whether a copy of the informed consent form is collected from authors, since the Committee of Publication Ethics guideline does not specifically recommend collecting it. In discussions of adopting clinical data-sharing policies, transfer of data including nonidentifiable personal information to another country is an unresolved issue. Furthermore, a public data repository site should be established in Korea for data to be deposited. To protect subjects’ privacy and to prevent legal issues potentially arising from privacy concerns, editors and publishers should do their best to publish articles with appropriate oversight on subjects’ personal information.

What We Talk about When We Talk about Caregiving: The Distribution of Roles in Cancer Patient Caregiving in a Family-Oriented Culture / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: When it comes to cancer care, the psychological well-being of family caregivers has gotten its deserved attention. However, the specific roles that the family caregivers take have not been examined as much. The current study aimed to investigate the distribution of family caregivers' roles, particularly in a family-oriented culture, Korea. MATERIALS AND METHODS: A sample of 439 participants was recruited from 11 national and regional cancer centers in Korea. The participants who were 60 years old or above went through treatments for their gastric, colorectal, or lung cancer. The individual survey included questions regarding the family type, living arrangement, and the sources of support when it comes to their physical, emotional, financial, and decision-making needs. RESULTS: The responses from the participants showed that cancer caregiving is shared by multiple family caregivers; the major source of support for elderly cancer patients on diverse domains was their spouse; patients' reliance on their daughter(s) increased for emotional support; and patients' reliance on their son(s) stood out for financial support and decision-making support. Also, the older the patients were, the heavier their reliance was on the adult children, including sons, daughters, and daughters-in-law. CONCLUSION: Future support programs for elderly cancer patients are suggested to involve multiple family caregivers to encourage effective and efficient intervention. Also, the limitations of the current study and the suggestions for future research are discussed.

The Correlation between Benign Laryngeal Mucosal Disease and Metabolic Syndrome

BACKGROUND AND OBJECTIVES: The aim of this study is verify the correlation between benign laryngeal mucosal disease and metabolic syndrome. MATERIALS AND METHOD: Data for patients diagnosed with benign laryngeal mucosal disease and metabolic syndrome from 2006 to 2015 were selected for analysis from the National Health Insurance Service database. RESULTS: The prevalence of Metabolic syndrome was 2,179,785 out of 6,437,051 patients (33.86%). The prevalence of benign laryngeal mucosal disease was 516,594 out of 6,437,051 patients (8.03%). Metabolic syndrome was a risk factor for benign laryngeal mucosal disease [hazard ratio: 0.99, 95% confidence interval: 0.984–0.997] after adjusting for age and other variables including age, gender, smoking status, alcohol intake, exercise, body mass index, and diabetes. The number of metabolic syndrome components was also risk factor. CONCLUSION: Metabolic syndrome was related to the incidence of benign laryngeal mucosal disease. However this correlation did not seem to be high.

Cohort Profile: The Cardiovascular and Metabolic Diseases Etiology Research Center Cohort in Korea

Mortalities from cardiovascular disease in Korea have decreased markedly over the past three decades. The major cardiovascular and metabolic risk factors, however, remain prevalent, and their burden on health is large. The Cardiovascular and Metabolic Diseases Etiology Research Center (CMERC) planned a cohort study in order to identify novel risk factors and to develop evidence-based prevention strategies of cardiovascular and metabolic diseases. The CMERC deliberately designed two prospective cohorts, a community-based general population cohort (the CMERC cohort) and its sister cohort (a hospital-based high-risk patient cohort), covering a broad spectrum of cardiovascular and metabolic diseases. This paper describes the CMERC cohort study of community-dwelling adults aged 30 to 64 years. A total of 8097 adults completed baseline measurement between 2013 and 2018. Baseline measurements assessed socio-demographic factors, medical history, health-related behaviors, psychological health, social network and support, anthropometry, body composition, and resting blood pressure and comprised electrocardiography, carotid artery ultrasonography, fasting blood analysis, and urinalysis. Both active follow-up through an annual telephone survey and a 5-year on-site health examination survey and passive follow-up through secondary data linkage with national databases, such as national death records, have been applied. Researchers interested in collaborative research may contact the corresponding author.

Why is Life Expectancy in Busan Shorter than in Seoul? Age and Cause-Specific Contributions to the Difference in Life Expectancy between Two Cities

PURPOSE: Seoul and Busan are the two largest cities in Korea. However, life expectancy (LE) in Busan is shorter than in Seoul and among the total Korean population. This study was conducted to decompose age- and cause-specific contributions to the LE difference between Seoul and Busan. MATERIALS AND METHODS: We obtained population and mortality data for Seoul and Busan between 2015 and 2017 from Statistics Korea. We applied Arriaga's decomposition method to life table data to estimate age- and cause-specific contributions to the LE difference between Seoul and Busan. RESULTS: During 2015–2017, LE in Busan was shorter than in Seoul by 2.22 years. Roughly two-thirds of the LE gap between Seoul and Busan was due to excess mortality among elderly people in Busan. The ≥85 age group alone contributed to approximately 20% of the LE gap, while no meaningful contribution was made by the 1–24 age groups. Cardiovascular disease accounted for over 40% of the total LE gap between Seoul and Busan, and this factor was more prominent in women. The top 15 leading specific causes of deaths explained nearly the entire LE difference between Seoul and Busan. CONCLUSION: The difference in LE between Seoul and Busan was due to higher mortality rate in Busan than in Seoul, especially in the elderly population and from cardiovascular diseases. Information on age- and cause-specific contributions to the LE difference between Seoul and Busan may guide health policy-makers to plan strategies for reducing the gap in LE.

Why Do Japan and South Korea Record Very Low Levels of Perceived Health Despite Having Very High Life Expectancies?

Japan and Korea follow a unique trend in which, despite reporting two of the highest life expectancies (LEs) among the Organization for Economic Co-operation and Development (OECD) countries, the proportion of people with good self-rated health (SRH) is disproportionately low. We sought to explain this high-LE-low-SRH paradox by examining associations among LE, the prevalence of good SRH, and healthcare utilization. Our hypothesis was that countries with more frequent healthcare use would demonstrate poorer SRH and that SRH would not show a meaningful association with LE among developed countries. This study extracted data from Health at a Glance 2017 by the OECD for 26 countries with valid and comparable information on LE, SRH, and the number of doctor consultations per capita. Correlations among LE, good SRH, and number of doctor consultations per capita were analyzed. The number of annual doctor consultations per capita and the prevalence of good SRH were closely correlated (correlation coefficient=−0.610); excluding outliers produced a higher correlation coefficient (−0.839). Similar patterns were observed when we replaced good SRH with poor SRH. Meanwhile, the correlation coefficient between annual per capita doctor consultations and LE was quite low (−0.216). Although good SRH is closely related to better LE at the individual level, this was not true at the national level. Frequent use of healthcare in Japan and Korea was strongly correlated with poorer SRH, without any meaningful correlation with LE.

Soboliphyme baturini (Nematoda: Soboliphymatidae) Recovered from Stomach of Asian Badger, Meles leucurus, in Geochang-gun, Gyeongsangnam-do, Korea

We are going to describe the female soboliphymid nematodes, which were recovered from the stomach of a Asian badger, Meles leucurus (Mammalia: Mustelidae), in Geochang-gun, Gyeongsangnam-do, Korea. In February 1998, we found 2 peculiar nematodes with a cup-like organ in the anterior end from the stomach of badger. Recovered worms were fixed with 10% formalin, cleared in glycerin-alcohol solution and observed under a light microscope with a micrometer. They were 34.46 (33.43–35.50) mm long by 2.13 mm at maximum width. Cephalic sucker cup-like, 3.34 (3.13–3.55) mm wide, 2.40 (2.25–2.55) mm long, with the oral aperture and meridionally striated on the buccal capsule. Oral aperture 2.38 mm in diameter. Circumoral membrane 0.41 (0.38–0.45) mm wide. Esophagus muscular, 4.81 (4.50–5.00) mm long by 0.80 (0.78–0.83) mm at maximum width. Vulva situated at 3.13 mm ventro-anterior level from the esophago-intestinal junction. Vagina anteriad, 3.38 mm long, making a canal from the uterus to the vulva opening. Uterus single, large. Tail 0.35 (0.33–0.38) mm long. Intrauterine eggs long elliptical, 0.058–0.065 (0.062) mm long and 0.030–0.033 (0.031) mm wide. Based on the some morphological characters and host-specificity, our specimens are nearly identical with S. baturini. Therefore, the present report describes S. baturini for the first time in Korea.

Recent Trends in Demographics, Surgery, and Prognosis of Patients with Surgically Resected Lung Cancer in a Single Institution from Korea

BACKGROUND: Over the past few decades, demographics information has changed significantly in patients with surgically resected lung cancer. Herein, we evaluated the recent trends in demographics, surgery, and prognosis of lung cancer surgery in Korea. METHODS: Patients with surgically resected primary lung cancer from 2002 to 2016 were retrospectively analyzed. Multivariable Cox regression analysis was conducted to identify prognostic factors for overall survival. The annual percent change (APC) and statistical significance were calculated using the Joinpoint software. RESULTS: A total of 7,495 patients were enrolled. Over the study period, the number of lung cancer surgeries continued to increase (P < 0.05). The proportion of women to total subjects has also increased (P < 0.05). The proportion of elderly patients (≥ 70 years) as well as those with tumors measuring 1–2 cm and 2–3 cm significantly increased in both genders (all P < 0.05). The proportion of patients with adenocarcinoma, video-assisted thoracic surgery, sublobar resection, and pathological stage I significantly increased (P < 0.05). The 5-year overall survival rate of lung cancer surgery increased from 61.1% in 2002–2006 to 72.1% in 2012–2016 (P < 0.001). The operative period was a significant prognostic factor in multivariable Cox analysis (P < 0.001). CONCLUSION: The mean age of patients with lung cancer surgery increased gradually, whereas tumor size reduced. Prognosis of lung cancer surgery improved with recent increases in the frequency of adenocarcinoma, video-assisted thoracic surgery, sublobar resection, and pathological stage I. The operation period itself was also an independent prognostic factor for overall survival.

The Association between Sleep Duration and Dizziness in Korean Women: The Korea National Health and Nutrition Examination Survey

BACKGROUND: The aim of this study was to investigate the association between sleep duration and dizziness in a representative Korean population. METHODS: We analyzed data from the Korea National Health and Nutrition Examination Surveys (2010–2012). A total of 12,499 adults who completed otolaryngologic examinations were evaluated. RESULTS: Both men and women with severely short sleep duration (≤ 5 hours) and severely long sleep duration (≥ 9 hours) tended to have higher dizziness prevalence. However, the adjusted odds ratio (OR) for sleep duration was only significant in women with dizziness after adjusting for confounders. Compared to that in an optimal sleep group (6–8 hr/day), the OR (95% confidence interval) for dizziness prevalence after adjusting for age and health behaviors (body mass index, smoking habit, alcohol consumption, level of exercise, metabolic syndrome, and tinnitus) was 1.473 (1.194–1.818) for the severely short sleep group (≤ 5 hr/day) and 1.472 (1.078–2.009) for the severely long sleep group (≥ 9 hr/day) only in women. CONCLUSION: In the Korean population, dizziness was associated with shorter or longer sleep durations only among women. Further epidemiologic and experimental studies are necessary to clarify the impact of dizziness on sleep disorders.