• International Journal of Advanced Culture Technology
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• 제10권4호
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• pp.19-27
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• 2022

The purpose of this study is to investigate the incidence rate, surgery tendency, and risk factors of cataracts among the elderly in Korea. The subjects were 40-95 years old men and women using the National Health Services' surgical statistics. Among the 33 major surgeries, which increased by 1.1% per year for the last 20years (1.6 million), the most operated surgery in 2020 was cataract surgery (454,000), the number of which was 858.8 per 100,000 people. Among the surgical patients, cataract patients (7.9% increased) was the third largest among the top (2016-2020) constantly with annually 2.2% increasing for 20 years (19.95 million). The medical expenses of major surgeries (excluding non-benefit) increased by an average rate of 9.3% per year over the 20 years (7,204 billion won) out of a total medical expenses of 7.2 trillion won, and the cataract surgery (813.2 billion won) was the second largest among the medical expenses in 2020 (top 3). This study showed that there was a high correlation between cataract and smoking, low income, and low-educated, whereas being no concentration of cataract patient in tertiary hospitals.

• The Journal of Asian Finance, Economics and Business
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• 제9권7호
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• pp.261-271
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• 2022

Over the last 20 years, the insurance industry in Vietnam has been rapidly growing with an average annual growth rate of 21%, one of the most active markets in Southeast Asia, raising the question of efficiency to managers, investors, and regulators. This article is one of the first research works using Data Envelopment Analysis combined with the Malmquist index over the period from 2016 to 2020 for 37 insurance firms in Vietnam to investigate the efficiency of this sector. The value-added approach is employed with total equity and operating expenses as inputs, finance income, and gross written premium as outputs. The findings reveal that most of Vietnam's insurance companies are operating quite effectively, and the non-life sector is more efficient than the life sector. There is also a regression in efficiency change, while there is a progression in technological change and total factor productivity change during the period examined. The goal of this research is to give a fundamental understanding of the overall efficiency of insurance firms in Vietnam, and help managers, investors, policyholders, and government agencies make better decisions regarding self-assessment, M&A activities, deregulation... Consequently, the insurance sector could improve in terms of efficiency and develop sustainably over time.

• 한국치위생학회지
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• 제22권5호
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• pp.417-424
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• 2022

Objectives: This study aimed to find a way to solve oral health inequality in old age by understanding the effect of the socioeconomic level of the elderly on oral health. Methods: We used data from the 7th Korea National Health and Nutrition Examination Survey. A chi-square test was performed to investigate differences in oral health according to socioeconomic status and demographic and oral health-related factors. Socioeconomic status and oral health inequality were analyzed using multiple logistic regression. Results: The average number of teeth in the elderly was 17.20, which is insufficient for the minimum number of teeth required for mastication. In the analysis of the correlation between socioeconomic status and oral health inequality, education level, income level, and home ownership were factors influencing the oral health of the elderly; education level was found to have the strongest effect. Conclusions: Oral health inequality according to socioeconomic status was confirmed, and it is necessary to measure the level of oral health inequality with active efforts at the government level to resolve the gap in oral health by social class.

• Journal of Preventive Medicine and Public Health
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• 제56권1호
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• pp.59-66
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• 2023

Objectives: The aim of this study was to evaluate the effect of body weight status and sleep duration on the discrete-time hazard of menarche in Korean schoolgirls using multiple-point prospective panel data. Methods: The study included 914 girls in the 2010 Korean Children and Youth Panel Study who were in the elementary first-grader panel from 2010 until 2016. We used a Gompertz regression model to estimate the effects of weight status based on age-specific and sex-specific body mass index (BMI) percentile and sleep duration on an early schoolchild's conditional probability of menarche during a given time interval using general health condition and annual household income as covariates. Results: Gompertz regression of time to menarche data collected from the Korean Children and Youth Panel Study 2010 suggested that being overweight or sleeping less than the recommended duration was related to an increased hazard of menarche compared to being average weight and sleeping 9 hours to 11 hours, by 1.63 times and 1.38 times, respectively, while other covariates were fixed. In contrast, being underweight was associated with a 66% lower discrete-time hazard of menarche. Conclusions: Weight status based on BMI percentiles and sleep duration in the early school years affect the hazard of menarche.

• 동아시아경상학회지
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• 제11권2호
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• pp.15-27
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• 2023

Purpose - The goal of this study is to extensively grasp the latest status of domestic home shopping and to propose useful information on the direction of development for the somewhat stagnant this market. This study investigates the relationship between purchasing media and demographic factors such as average monthly income, age and occupation. Categories of purchasing media under consideration are cell phones, tablet PCs, PCs/notebooks, phone calls and TV directly. Research design, data, and methodology -The survey was conducted in 2021 on a total of 4,537 integrated panel households including 3,510 households and 191,027 newly constructed in 2019 and about 10,800 household members aged 6 years or older in the household. The independence test and correspondence analysis as statistical tools are exploited to detect the relationship between the underlying factors. Result - It can be demonstrated that all demographic variables considered are related to the purchase media of home shopping. In particular, cell phones among purchasing media are closely associated with 2 million - 5 million won, teenagers, 20s, 40s, professionals, office workers, managers and soldiers. Conclusion - It is necessary to establish a new management strategy and related policies in order to overcome the current stagnation and ensure the continued growth of this industry.

• Journal of Animal Science and Technology
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• 제65권3호
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• pp.627-637
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• 2023

As the population and income levels rise, meat consumption steadily increases annually. However, the number of farms and farmers producing meat decrease during the same period, reducing meat sufficiency. Information and Communications Technology (ICT) has begun to be applied to reduce labor and production costs of livestock farms and improve productivity. This technology can be used for rapid pregnancy diagnosis of sows; the location and size of the gestation sacs of sows are directly related to the productivity of the farm. In this study, a system proposes to determine the number of gestation sacs of sows from ultrasound images. The system used the YOLOv7-E6E model, changing the activation function from sigmoid-weighted linear unit (SiLU) to a multi-activation function (SiLU + Mish). Also, the upsampling method was modified from nearest to bicubic to improve performance. The model trained with the original model using the original data achieved mean average precision of 86.3%. When the proposed multi-activation function, upsampling, and AutoAugment were applied, the performance improved by 0.3%, 0.9%, and 0.9%, respectively. When all three proposed methods were simultaneously applied, a significant performance improvement of 3.5% to 89.8% was achieved.

• 한국보육지원학회지
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• 제20권2호
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• pp.127-143
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• 2024

Objective: The purpose of this study is to develop a machine learning model to predict the subsequent childbirth intention of married women with one child, aiming to address the low birth rate problem in Korea, This will be achieved by utilizing data from the 2021 Family and Childbirth Survey conducted by the Korea Institute for Health and Social Affairs. Methods: A prediction model was developed using the Random Forest algorithm to predict the subsequent childbirth intention of married women with one child. This algorithm was chosen for its advantages in prediction and generalization, and its performance was evaluated. Results: The significance of variables influencing the Random Forest prediction model was confirmed. With the exception of the presence or absence of leave before and after childbirth, most variables contributed to predicting the intention to have subsequent childbirth. Notably, variables such as the mother's age, number of children planned at the time of marriage, average monthly household income, spouse's share of childcare burden, mother's weekday housework hours, and presence or absence of spouse's maternity leave emerged as relatively important predictors of subsequent childbirth intention.

• 한국치위생학회지
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• 제24권2호
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• pp.149-162
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• 2024

Objectives: This study aimed to identify the level of digital oral health literacy among Korean adults in Gangwon-do. Methods: A survey was conducted through face-to-face interviews with adults aged 30-89 residing in Gangwon-do, South Korea. The independent variables were socio-demographic characteristics, including gender, age, education level, income, and occupation. The dependent variable was digital oral health literacy. The statistical analysis included Independent t-test, one-way ANOVA, Pearson correlation analysis, and multiple linear regression analysis, all performed using the SPSS 27.0 software program. Results: The elderly and those with poor socioeconomic status (p<0.001) had lower average scores due to poor digital oral health literacy. The ease of searching for oral health information and the utilization of digital devices to search for information on oral health displayed a significant relationship (r=0.730, p<0.001). To develop the use of digital devices, simplifying the search for oral information (p<0.001) is essential. Conclusions: All socio-demographic characteristics, except gender, displayed a correlation with the level of digital oral health literacy. Both environmental and individual aspects of the respondents' living conditions must be considered to improve digital oral health literacy.

• 농업과학연구
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• 제50권4호
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• pp.869-881
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• 2023

A genetic improvement program in Korea was implemented to improve the performance of Hanwoo cattle by generating livestock with genetically desirable economic characteristics. In particular, in response to external changes, such as the expansion of Free Trade Agreement (FTA), the livestock genetic improvement program has increased farm income by improving the productivity and quality of Hanwoo cattle. Using production cost data from Statistics Korea, the total input and output indices of Hanwoo feeding cattle from 2008 - 2021 were estimated and the growth and productivity changes were analyzed. The productivity change measures results were used to estimate the cumulative effects of the Hanwoo genetic improvement program on quality improvement, another purpose of the program, using a finite distributed lag model. The average annual increase in output (market weight) of Hanwoo was 0.9%. However, total input increased by 1.6%, resulting in a 0.6% decline in total factor productivity. In contrast, the Hanwoo genetic improvement program contributed significantly to the production of high quality beef, rather than contributing to improved productivity of the cattle. Hanwoo carcass weight, which is used as a performance indicator for the livestock genetic improvement program, has significantly improved and is projected to increase at a slower rate. The collective findings indicate the need for new performance indicators that can comprehensively indicate the performance of the genetic improvement of Hanwoo.

• PNF and Movement
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• 제22권1호
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• pp.81-90
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• 2024

Purpose: This study examined the perceived quality of life of families of individuals with developmental disabilities who regularly participate in physical activities. It also explored differences in the quality of family life based on variables such as family relationships, family income, gender, disability type, and age. Methods: A survey was administered to 69 family members of individuals with developmental disabilities who regularly participate in physical activities. The collected data were analyzed using descriptive statistics, independent samples t-test, and one-way analysis of variance. Results: The average overall quality of life for families of individuals with developmental disabilities who participate in continuous physical activities was 3.49. After analyzing each subtype, psychological health was found to be 3.91, the burden for people with developmental disabilities was 2.75, community participation was 3.76, cohesion was 3.83, and openness was 3.49. No statistically significant differences were found in family relationships or family classes, disability type, age, or gender of the individuals with developmental disabilities across the variables. Conclusion: When planning service development and support to improve the quality of life for families of individuals with developmental disabilities, it is necessary to develop systematic programs at the family level rather than providing support based on various variables.