• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 1996.11a
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• pp.121-121
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• 1996

• Korean Journal of Poultry Science
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• v.25 no.3
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• pp.103-111
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• 1998

This study was carried out to estirnate the heritabilities and genetic correlations on egg shape index and internal egg qualities ; shell thickness, alburnin heights and Haugh units for breeding plan and selection in Korean native chicken. Data analyzed were the records of 46,908 eggs from 43() layers from April, 1994 to September, 1995. The egg shape index at the first egg, 300 days and 500 days of ages were 74.771, 74.468 and 73.702; the shell thickness were 0.345, 0.344 and 0. 334mm; the alburnen heights were 6.579, 6.130 and 5.318mm; the Haugh units were 86.859, 81.014 and 73.565 respectively. The heritability estimates of egg shape index and internal egg qualities based on the variance of sire, dam and combined components at 300 days of age were 0.136, 0.954 and 0.545 for egg shape index; 0.201, 0.622 and 0.421 for shell thickness; 0.410, 0.961 and 0.633 for albumen height ; 0.353, 0.962 and': 0.608 for Haugh units. The genetic correlation coefficient between shell thickness and albumen height was -0.044~0.824; 0.016~0.949 between Haugh units and shell thickness 0.313~0.941 between albumen height and Haugh units, respectively.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.115-116
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• 2003

The significant strain effects were investigated In all the major economic traits in Korean native chicken. The highest Least Square(LS) means of the body weights at 150 and 270days of age were observed in Black strain as 1, 594.38 and 1, 911.57 g. The earliest LS mean of the ages at first egg was 146.88 days in White strain. The heaviest LS means of egg weights at the first egg and 270 days of age were observed in Red brown strain as 33.20 and 50.74 9. The LS mean of the largest number of egg production was 79.50 eggs in Yellow strain.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.113-114
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• 2003

The observed ranges of genetic and phenotypic changes per generation were as follows, for the body weight at 150 days, -3.66 ∼ -8.99 and -27.07 ∼ -63.61 g ； for the body weight at 270 days, -2.89 ∼ -9.69 and 7.39 ∼ -27.45 g； for the age at first egg, -0.31 ∼ -0.57 and -0.23 ∼ -6.67 g ; for the egg weight at the first egg, -0.02 ∼ -0.06 and 0.65 ∼ 0.26 g ； for the egg weight at 270 days, 0.53 ∼ 0.35 and 1.62 ∼ 0.01, respectively. In general, the genetic and phenotypic change were decreased In body weight and the age at first egg and increased in egg weight and the number of egg production.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.127-128
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• 2003

This study was conducted to obtain for genetic information with 11, 538 progenies of 5 strains in Korean native chicken. The heritability estimates of the body weights at 150 and 270days of age were 0.25~0.61 and 0.32~0.59 in 5 strains, the heritabilities of the body weight at 270 days were relatively higher than that of the body weight at 150 days. The medium or low heritability estimates were observed in the ages at first egg as 0.15 ~0.31, and heritability estimates of the egg weights at the first egg and 270 days of age were 0.06~0.09 and 0.24~0.41. Medium or low heritability estimates were observed for the number of egg production as 0.09 ~0.26, respectively.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.125-126
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• 2003

The observed genetic gains per generation in Korean native chicken on the basis of the 7 generation data collected from 11,583 birds from 1995 to 2001 at National Livestock Research Institute, Korea. Results obtained were summarized as follows : The body weight at 150 days, -5.292 ∼ 3.682 g ； for the body weight at 270 days, -6.184 ∼ 4.591 g ； for the age at first egg, -0.399 ∼ -0.102 ； for the egg weight at the first egg, -0.026 ∼ 0.016 ； for the e99 weight at 270 days, -0.039 ∼ 0.068 g ； for the egg production at 270 days, 0.222 ∼ 0.587, respectively.

• Journal of Preventive Medicine and Public Health
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• v.30 no.3 s.58
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• pp.497-507
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• 1997

This study was conducted to evaluate the association of various lifestyle with blood pressure. The data were obtained from the individuals who got routine health examination in Department of Occupational Medicine, Yeungnam University Hospital from June to September, 1996. Among these people, we selected 130 cases of hypertensives (97 males, 33 females) and 150 normotensives(70 males, 80 females) and study was conducted. The authors collected the information of the risk factors related to hypertension such as age, family history of hypertension, fasting blood sugar, serum total cholesterol, alcohol consumption(g/week), smoking history, relative amount of salt intake (low, moderate, high), the frequency' of weekly meat consumption, BMI, daily coffee consumption(cups/day) and the frequency of regular exercise(frequency/week) through questionnaire and laboratory test. By simple analysis, BMI was significantly associated with hypertension in male(p<0.05), and the frequency of weekly meat consumption was significantly associated with hypertension in female(p<0.05). Using logistic regression model, elevated odds ratio was noted for fasting blood sugar, serum total cholesterol, family history of hypertension, alcohol consumption, salt intake and BMI, and reduced odds ratio was noted for coffee consumption and exercise in male but fasting blood sugar(odds ratio=1.022, 95% CI=1.000-1.044), family history in both of parents(odds ratio=3.301, 95% CI=1.864-4.738), salt intake(odds ratio=1.690, 95% CI=1.082-2.298) and BMI(odds ratio=1.204, 95% CI=1.065-1.343) were statistically significant(p<0.05). In female, elevated odds ratio was noted in serum total choles terol, family history of hypertension, BMI and meat consumption. Of all these variables, the family history of hypertension in either of parents(odds ratio=4.981, 95% CI=3.650-6.312), family history in both of parents(odds ratio=16.864, 95% CI=14.577-19.151), BMI(odds ratio=1.167, 95% CI=1.016-1.318) and meat consumption(odds ratio=2.045, 95% CI=1.133-2.963) showed statistically significant association with hypertension in female(p<0.05).

• Journal of Digital Convergence
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• v.12 no.7
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• pp.327-336
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• 2014

This study aims to identify factors to affect regular utilization status of medical care in cardio-cerebrovascular patients. The research selected 770 cardio-cerebrovascular patients among surveyees from the Korea Health Panel 2010. We analyzed states of medical care utilization using descriptive statistics. Logistic regression analysis was used to examine the main factors associated with regular utilization status of medical care in cardio-cerebrovascular patients. In result, the significant factors associated with regular utilization status of medical care in cardio-cerebrovascular patients were age, education level, household income level. CCI, presence or absence of high risk drinking, and presence or absence of obesity. There's a high probability that patients aged between 60 and 69, equal to and higher than those of high school graduate in education level, upper middle class in household income, the higher CCI, absence of high risk drinking, presence of obesity utilize medical care services more regularly. Therefore, it is necessary to develop effective program and individualized approach for patients using lesser periodical medical care and patients with high risk drinking problem. In the future, these findings can be used an important data for healthcare policy and assessment.

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.22-32
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• 2016

As the number of aged population rapidly goes up, the cases of stroke and the related medical expenses continuously increase. The purpose of this study is to investigate the mortality of stroke patients based on CCI(Charlson Comorbidity Index) by utilizing the Korea National Hospital Discharge Injury Survey, analyzing the factors associated with the mortality of stroke patients. We analyzed 21,494 cases which are classified as the death of strokes aged over 20 years by using the Korea National Hospital Discharge Injury Survey between the year 2005 and 2010. In order to find out the mortality based on CCI and status of comorbidity, we used the technical statistics. We performed a logistic regression analysis to examine the reasons for the mortality of the strokes. We found that the independent variables for the influence of the mortality of strokes include age, type of insurance, residence urban size, size of hospital beds, the location of hospital, admission route, physical therapy, brain surgery, type of stroke, and CCI. This indicates that the effective monitoring on the age, types of stroke, comorbidity is needed. In addition to this, more medical support toward medicaid patients are needed, too. We believe that these results will be used positively for the evaluation of the stroke patients, providing the basic materials for the further research on the establishment of the health-related policy.

• Journal of dental hygiene science
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• v.5 no.1
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• pp.7-12
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• 2005

This study was conducted to compare and analyze 877 cases of health insurance claims from the first half of 1999 requested to the dental centers of local health centers in rural areas and 510 identical cases from the first half of 2003. It was purposed to understand the trend of rural residents' visits to local health centers and to use the collected data as the basis needed for the vitalization of local dental cares to efficiently improve Korean citizens' dental hygiene. The results were shown as below: 1. The sexes of the visitors were fairly evenly distributed for each year. 2. Among the total of 39 types of diseases treated, 1999 had 31.9% of visits for 'Gingivitis and periodontal diseases' with 25.4% from ages between 10 and 19, for statistically attentive results. On the other hand, 2003 had 46.5% of visits for 'Oral examination' with 52.9% from ages between 0 and 9, for statistically attentive results. 3. For the distribution of age groups, majority in 1999 made visits for dental caries, gingivitis and periodontal disease, whereas majority in 2003 were for oral examination, dental caries, gingivitis and periodontal disease.