• Journal of Trauma and Injury
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• 제34권4호
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• pp.257-262
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• 2021

Purpose: Pediatric hand trauma is common and sometimes causes deformity or disability. The incidence and etiologies of hand trauma in children are different from those in adults. This study analyzed the characteristics of pediatric hand trauma cases and patients over a 15-year period. Methods: We conducted a retrospective medical record review of 3,432 children (2,265 boys, 1,167 girls, under 18 years of age) with hand injuries from January 2005 to December 2019. We evaluated the sex distribution and injury etiologies. Injuries were classified by type as burns, amputations, crushing injuries, lacerations, extensor and flexor tendon injuries, open and closed fractures, and nerve injuries. Results: Among the pediatric hand injury patients, males were predominant (1.94:1). Simple lacerations (58.4%) were the most common injury type, followed by fractures (22.8%). Lacerations and burns tended to be common in younger age groups, while tendon injuries, nerve injuries, and crushing injuries were more frequently encountered in older age groups. Conclusions: Hand trauma prevention strategies should be established considering the frequent trauma etiologies in specific age groups. An awareness of age-specific characteristics of pediatric hand trauma patients will be helpful to prevent hand trauma.

• 복식문화연구
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• 제31권5호
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• pp.607-626
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• 2023

This study analyzes consumer fashion purchase patterns from a big data perspective. Transaction data from 1 million transactions at two Korean fashion brands were collected. To analyze the data, R, Python, the SPADE algorithm, and network analysis were used. Various consumer purchase patterns, including overall purchase patterns, seasonal purchase patterns, and age-specific purchase patterns, were analyzed. Overall pattern analysis found that a continuous purchase pattern was formed around the brands' popular items such as t-shirts and blouses. Network analysis also showed that t-shirts and blouses were highly centralized items. This suggests that there are items that make consumers loyal to a brand rather than the cachet of the brand name itself. These results help us better understand the process of brand equity construction. Additionally, buying patterns varied by season, and more items were purchased in a single shopping trip during the spring season compared to other seasons. Consumer age also affected purchase patterns; findings showed an increase in purchasing the same item repeatedly as age increased. This likely reflects the difference in purchasing power according to age, and it suggests that the decision-making process for pur- chasing products simplifies as age increases. These findings offer insight for fashion companies' establishment of item-specific marketing strategies.

• 농촌의학ㆍ지역보건
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• 제21권2호
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• pp.151-157
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• 1996

This study was analyze through the reports which published on the subject matter of Su Dong-Myun from year of 1972-1993, and analysis of data in 1994 was performed with medical records on the health subcenter by PC-SAS program. The result are as follows: The number of population in Su-Dong Myun(study area) was 5,707 in 1995, 4,641 in 1985 and 5,424 in 1975. In the composition rate of population "0-14" of age group only showed markedly decreasing tendancy from 42.8% in 1975 to 19.1% in 1995. However, "65 and over" showed markedly increasing tendancy from 5.7% in 1975 to 9.8% in 1995. Annual utilization rate showed rapidly increasing tendency from year of 1972 to 1978, such as 314 per showed rapidly decreasing tendency, such as 708 in 1981, 485 in 1984, 272 in 1987, 309 in 190 and in 1993. In the annual age-specific utilization rate, the age group of "0-14" showed the highest rate of 621 per thousand population in 1975, 1159 in 1980, 1021 in 1985 and 538 in 1990. However the age group of "65 and over" showed the highest rate of 481 in 1994. Age specific annual utilization rate showed markedly decreasing tendency in the age group of "0-14" and "15-44", however showed slightly decreasing tendency or same level in the group of "45-64" and "65 and over" from year of 1980 to 1994. In the age specific utilization rate, the lower down the age was, the higher tendency the rate showed, such as 621 per 1,000 population in "0-14" of the age group, 543 in "15-44", 406 in "45-64" and 294 in "65 and over" in 1975. However, the higher up the age was, the higher tendency the rate showed in 1980, 1985 and 1994, except "0-14" of age group. The 5 major diseases were disease of Respiratory system, Gastrointestinal system, Skin and Subcutaneous tissue, Accidents, Poisoning and Violence and Nervous system and Sense organ, in 1975, 1980 and 1985. However, in 1990 and 1994, the 5 major disease were disease of Respiratory system, Gastrointestinal system. Skin and Subcutaneous tissue, Musculoskeletal system and, Connective tissue and Circulatory system. In Composition rate of patient in Su Dong-Myun Health Subcenter by Charged Medical Fee, medical insurance showed almost all the highest rate of 93.9% in year of 1994 and C.H.D.A. of 100% in 1975. Proportion of insurance showed increasing tendency such as 6.6% in 1980, 21.3% in 1985, 69.0% in 1990 and relatively C.H.D.A. showed decreasing tendency.

• 한국인구학
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• 제6권1호
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• pp.43-69
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• 1983

This study was conducted to make the life tables from specific causes of death in Korea. Both "Life tables of Korea in l978-79" and "the statistics on causes of death statistics in 1980" issued by Economic Planning Board were used as source of data for this study. Among the 58, 187 death certificates reported to the concerned authorities, 39, 801 causes were drawn for the purpose of this study. As a result, it is revealed that two thirds of men in Korea died from these 10 major causes of death. The summarized results are as follows: 1. According to recent statistics, 10 major causes of death in 1980 were shown in the order of 1) malignant neoplasms, 2) cerebrovascular disease, 3) accidents and adverse effects, 4)hypertensive disease, 5) ischaemic heart disease and heart attack, 6) chronic liver disease and cirrhosis, 7) tuberculosis, 8) pneumonia, bronchitis, emphysema and asthma, 9) suicide, 10) diabetes mellitis. 2. The major causes of death in Korea were very similar to those of developed countries such as West Germany, Denmark and Japan. This means that our pattern of death causes is almost approaching to that of developed countries. 3. Our crude death rate in 1980 was on the line of 6.6 per 1, 000 people. This is very low level, compared with 12.1 in West Germany and 10.0 in Denmark, however, our age sepcific death rate was on the verge of doubled level in each age category as to that of West Germany, Denmark and Japan. The fact tells us that our death rate is very high yet, especially in young and prime adult age, and the proportion of the aged is quite low. 4. Average ages of people died from malignant neoplasms, cerebro vascular diseases and hypertensive diseases were 63.1, 66.6, 67.3 respectively, however, that of accidents and adverse effect was only 42.5. This shows that accidents occur indifferently from age. 5. In the curve of eventual death probability, the curve of malignant neoplasms was the highest of all curves before 60 in age. However, the probability curve of eventually dying from accidents and adverse effects tends to decline with age. 6. In this study five life tables from major causes of death (four leading causes of death and of tuberculosis) were constructed for 1979. These life tables are reflecting accurately the effects of age distribution on the specific cause of death. In the surviving curje of these tables we can see that the curve of accidents is adversely related to age. While curves of neoplasms, hypertension and tuberculosis are not diminishing before 40 in age, they are going sharply downward after 50 in age.ard after 50 in age.

• 한국인구학
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• 제9권2호
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• pp.13-29
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• 1986

This study was carried out to calculate working life expectancy and its potential gains according to the degree of reduction in the specific causes of death. It sought to ascertain what potential gains in labor force longevity might be reasonably achieved through efforts to reduce mortality from injuries and poisoning, diseases of circulatory system, neoplasms and the other causes of death. The data were drawn from the three sources such as "The 1982 Causes of Death Statistics," "Abridged Life Table for Korea 1978~'79" and "The 1982 annual Report of Economically Active Population" issued by Economic Planning Board. Analytical tools used in this study were the cause-deleted life table and the Wolfbein Wool's working life table method. Partial life expectancy was adopted as an index of this study, This application will be widely used as a good demographic tool for analyzing the dynamics of labor force and causes of death. Some of the findings are summerized as follows. 1. Partial life expectancies from initial age 15, 25, and 45 respectively to terminal age 65 are 44.86, 35.59 and 17.41 year in life expectancy itself, 37.08, 32.83 and 15.21 year in working life expectancy, 7.78, 2.76 and 2.20 years in inactive life years. 2. Potential gains in working expectancy from initial age 15, 25 and 45 to terminal age 65 by the complete elimination of the specific causes of death are 1.36, 0.94 and 0.27 years in injuries and poisoning, 0.88, 0.83 and 0.54 years in diseases of circulatory system, 0.56, 0.54 and 0.37 years in neoplasms, 1.13, 1.02 and 0.58 years in the other causes of death. The relationship between degree of reduction in causes of death and potential gains in working life years is in direct proportion. The prime orders of reduction effectiveness in age groups by the causes of death are injuries and poisoning in age 15-24, the other causes of death in age 25-49 and diseases of circulatory system in age 50 and over. 3. If it were possible to reduce 25%, 50% and 75% in mortality condition 1978~'79, the average length of working life would be 38.08, 39.13 and 40.17 years in age 15, and 33.68, 34.57 and 35.44 years in age 25, and 15.67, 16.14 and 16.63 years in age 45.

• 응용통계연구
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• 제32권2호
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• pp.229-263
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• 2019

우리나라 출산율은 2000년 이후 빠르게 감소하고 있으며, 시도별 출산율도 대체적으로 동일한 추이를 나타내고 있다. 특히 시도별 출산율은 지방자치단체에서 저출산 고령화 대책, 교육 및 복지 등의 지역정책을 마련하기 위한 필수 자료이다. KOSTAT (2017) 시도별 출산율 추계 방법은 최근 10년(5년)간 전국 평균 출산율 정보를 이용하고 있으므로 이질적인 시도별 추이를 반영하는데 한계점이 있다. 따라서 본 연구에서는 시도별 출산율 추계에서 중요한 연도별 안정적 패턴 유지와 시도 출산율 차별성을 동시에 고려하는 개선방안을 제시하고자 한다. 본 연구에서 제안한 방법(제안 1, 2)는 연도별 출산율의 시계열 자료를 활용함으로써 연령별로 과거부터 현재까지의 출산율의 변동추이 및 전국과 시도의 차이를 반영할 수 있는 장점이 있다. 또한 제안3은 전국과의 관계는 고려하지 않고 시도의 연령별로 출산율의 과거부터 현재까지의 독자적 추이를 반영한다. 연구결과 우리나라의 경우 전국 출산율과 시도 출산율 패턴이 유사하므로 제안1, 2와 같이 시도 출산율 예측시 전국과의 관계를 이용하는 게 바람직하다 볼 수 있다. 이런 제안은 연령별 출산율 추이에 안정성을 개선시켰다.

• 대한방사선기술학회지:방사선기술과학
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• 제41권4호
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• pp.313-319
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• 2018

The purpose of this study was to investigate the influence of metabolic syndrome (MS) on the lower urinary tract symptoms (LUTS), prostate specific antigen (PSA), and prostate volume in Korean men. We analyzed the data from 2654 men over the age of 40 who visited our health promotion center for regular health checkups. Of the total 2654 men, mean age, PSA level, International Prostate Symptom Score (IPSS), and prostate volume were 54.6 years, 1.21ng/ml, 6.2 points, and 27.8ml, respectively. All examinees were divided into MS group (46.5%, 1235 men) and non-MS group (53.5%, 1419). Age and prostate volume were significantly higher in the MS group. The patients were divided into three groups according to their ages: 40's, 50's, and over 60 years old. Prostate volume of the MS group in the younger age groups (40-49 years and 50-59 years) was significantly larger than that of the non-MS group. However, no difference was revealed in the age group of 60-69 years. No significant differences were found in the PSA level and LUTS between the MS and non-MS groups. In the multivariate regression analysis, central obesity was the strongest risk factor for the enlargement of prostate over 30ml among the metabolic components.

• International Journal of Industrial Entomology and Biomaterials
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• 제5권1호
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• pp.33-36
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• 2002

Mulberry leaf roller, Diaphania pulverulentalis (Hampson), is a major pest of mulberry, Morus alba. The life table construction from present investigation reveals the age specific survival $(1_{x)}$ and the age specific fecundity $(m_{x})$ of the pest. The female contributed the highest egg production $(m_{x} ＝ 12.75)4 in the life cycle on the $27^{th}$ day and the lowest $(m_{x} = 0.8)$ on the 37$^{th}$ day of the pivotal age. The female progeny production was observed to be intensive for the first six days after the preoviposition period, beyond which it declines steadily, The fecundity of D. pulverulentalis varies between 60-140. The first female mortality within the cohort occurred 4 days after the adult emergence and mortality increased thereafter, One generation is completed in 33.08 days. The female dominated sex ratio (1: 7.18 days) was recorded.

• 한국가금학회지
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• 제10권2호
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• pp.83-89
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• 1983

본 연구는 육용계의 복강지방 축적에 대한 결합능력추정을 위하여 White Cornish 2계통과White Plymouth Rock 2계통을 상호 역교배시켜 16개 교배조합을 생산하여 각 교배조합당 60수씩 960수를 혈통번식시켜 2주 간격으로 체중, 복강지방량 및 체중에 대한 복강지방 비율에 대한 결합능력을 추정하였다. 1. 육계의 복강지방량의 생체중 대 비율은 4주영부터 암탉이 수탉보다 높았다. 2. 일반결합능력에 있어서 체중은 암수 공히 각주령에 유의성이 있었으며 복강지방량에서 암탉은 2. 8, 10 및 12주령에 유의성이 있었고 수탉은 2, 6 및 12주령에 유의성이 있었으며 복강지방의 생체중 대 비율에서는 암탉은 10 및 12주령에 유의성이 있었으나 수탉에서는 유의성이 없었다. 3. 특수결합능력에서 체중은 암탉에서 4, 6, 10 및 12주령 수탉에서 4, 8, 및 12주령에 유의성이 있었으며 복강지방량은 암탉에서 4, 8, 10 및 12주령에 유의성이 있었으나 수탉에서는 유의성이 없었으며 복강지방의 생체량 대 비율은 암탉에서 4 및 8주령에 유의성이 있었으나 수탉에서는 유의성이 없었다.

• Asian-Australasian Journal of Animal Sciences
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• 제6권4호
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• pp.497-507
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• 1993

Four truncation selection schemes (SSs) were framed to predict and compare the age structures and genetic responses under the influence of various factor employing the scheme-specific algorithms. Two paths of selection, sires (bulls' sires) and dams (bulls' dams) to breed young bulls were considered. Among variable factors, four levels (0.3, 0.5, 0.7, 0.9) of precision of evaluation, five levels (0.0, 0.05, 0.10, 0.15, 0.20 genetic standard deviation) of genetic differences among age classes and 4 levels of proportions selected (for bulls' sire, 0.05, 0.10, 0.125, 0.25, and for bulls' dams 0.02, 0.04, 0.05, and 0.10) contemplated on both paths of selection. The number of age classes for bulls' dams and bulls' sires were 4 or 8 and 2 or 4, respectively. The stayability across age classes for bulls' dams was assumed to be 0.80 or 0.60. The candidates for selection for bulls' sires were equally distributed (0.5 or 0.25) across the age classes. The SS1 (selection on same proportions as candidates' distribution) revealed longest generation lengths and lowest yearly genetic responses. The average ages were youngest and yearly genetic responses were highest in SS4 (selection at each age-specific truncation point with the same average genetic superiority of selected parents across the ages) and followed by SS3 (selection at each agespecific truncation point with same predicted genetic values) and SS2 (selection at common truncation point on phenotypic values) in a population with overlapping generations. The results revealed the importance of choosing suitable selection scheme to acquire maximum yearly genetic responses especially when the genetic differences among age classes are large and the precision of evaluation is relatively low.