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Yang Won Park 11 Articles
A Study on Growth Acceleration in Korean as Indirected by the Maximum Growth Age in body Height.
Hyung Gyun Shin, Soon Young Park, Yang Won Park
Korean J Prev Med. 1984;17(1):173-192.
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AbstractAbstract PDF
On the basis of the study intended to research by crosssectional study keeps pace with semilongitudinal study the growthaccelerating phenomena that Maximum Growth age in teenager's body-height. By the random sampling method, the subject of study are 12659 persons(male;6355, female;6304) that they are from 7 ages to 17 ages in the whole country including the rural community. The measurement period passed three month days, the statistical data became electronic data processing system with computer.The other side, body-height and MGA of Koreans who had been for during the period from 1925 to 1966 proved transition of the growth-accelerating phenomena by research data reported between 1913 and 1983. The results are as follows; 1. The Growth and Development-Value of Body-height. An age bracket the growth and development-value of body-height were, respectively, male is 123.88+/-5.05cm and female is 123.29+/-5.54cm for 7 ages group. these indices increased with age. The top-value reach, respectively. 169.08+/-5.62cm and 157.57+/-6.13cm. The intersecting ages of male and female were the age 8.5~12.5, during these periods, female excelled male but after these periods, male excelled female again. In case of body-height, MGA's are 7.0cm for male between 12 and 13 age, and 7.01cm for female between 8 and 9 ages. As a rule, body-height of male excelled female but intersection phenomena of male and female appeared between 8.5 and 12.5 ages. By reginal groups, it is most prevailing is Seoul, and medium size cities and rural community come in order. By regional groups, intersection phenomena of male and female are. a region of Seoul; 8.5~11.5 ages, a region of Daejeon; 7.5~9.5 ages, rural community; 11.5~14.5 ages the whole country's average; 8.5~12.5 ages By regional groups, the rate of maximum increase in a year are a regional of Seoul; male is 7.23cm as 13 ages, female is 7.65cm as 9 ages. a region of Daejeon; male is 7.85cm as 11 ages, female is 8.39cm as 9 ages. rural community; male is 7.65cm as 14 ages, female is 6.25 as 12 ages. the whole country's average; male is 7.0cm as 13 ages, female is 7.01 as 9 ages. 2. Maximum Growth Age (M.G.A.) By reginal groups, maximum Growth Age's are as below in a region of Seoul, MGA's are 12.63 for male and 9.01 for female, which shows that MGA for female appears about 3.5 years earlier than that for male. In a retion of Daejeon, MGA's are 9.20 for male and 8.93 for female, which show that they are all much the same in M.G.A. In rural community, MGA's are 14.00 for male and 11.89 for female, which shows that MGA for female appears about 2 years earlier than that for male. In the whole average, MGA's are 13.01 for male and 8.97 for female, which shows that for female appears about 4 years earlier than that for male. For boy, M.G.A. shows fastest-growing in Daegjeon, and Seoul and rural community come in order. For girl, It shows equal growth in Seoul and Daejeon, rural community comes later. 3. The M.G.A's in body height of male are respectively the age 15.02 in 1913, 14.23 in 1956, 13.86 in 1967, 13.62 in 1975, and 12.82 in 1981, while those of female are the age 12.0 in 1940, 11.52 in 1965, 9.53 in 1975, ad 11.16 in 1980; these data show that the MGA of the Koreans has been getting younger. 4. The equation of linear regression of all the MGA's in body height are as follow; Male: Y(M.G.A) = -0.020 x (the year) + 15.19 : female: Y(MGA) = -0.028 x (the year) + 13.2549. 5. The corelation of all the MGA's in body height are as below; male;r=-0.329, female;r=-0.252. 6. From the transition of the growth-accelating phenomena in 1980 we can capture the fact that the MGA's has been getting younger by 0.2 year per 10 years. 7. The MGA's in bodyheight are shown in table 4. 8. The future growth-accelating phenomena in body height are expected to show the similar tondency like that of the past, in 1910's but it should by more precisely reviewed after investigating the phenomena of the years directly ahead.
Summary
Studies on Standard Physical Growth and Development by Age and Body Height in Korean Youth.
Kwang Tai Ahn, Soon Young Park, Yang Won Park
Korean J Prev Med. 1984;17(1):145-172.
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AbstractAbstract PDF
In order to assess the physical growth pattern of Korean Youth, the authors measured the body height, chestgirth and sitting height of 40967 persons (24832 males and 16135 females) from primary schools, middle and high schools and colleges of metropolitan (urban) and rural areas, and calculated the mene, standard deviation, standard error and coefficient variance of the body weight chestgirth, sitting height and various pertinent index by body height to demonstrate the standard physical growth and development by body height of sex and age. The following conclusions were obtained. 1. Physical growth and development: Rapid growth of physical growth in terms of body height has been observed among males in the age 7-15 and among female 7-13. Growth in terms of body height turned out to be slower among students of higher age by both sexes. The age of cross over between to sexes is between 10 to 13 years where upon girls out grows boys. Maximum annual growth were upon girls out grows boys. Maximum annual growth were both of 6.16cm from 8 to 9 years old and 12 to 13 years old for boys and 7.2cm from 8 to 9 and 6.1cm from 9 to 10 for girls. This indicates that girls enter a rapidly growing stage 2 years earlier than boys. Meanwhile, prominent improvement in body height of national students over period of ten year was noticed. 2. The distribution status of body height by age: The distribution status of body height by age were as follows; 7 year of age: boys-30cm range of body height from 104.0cm to 133.9cm, girls-27cm from 104.0 to 130.9cm, 8 year of age: boys-30cm from 116.0 to 145.9cm, girls-33cm from 113.0 to 145.9cm, 9 year of age: boys-30cm from 116.0 to 145.9cm, girls-33cm from 113.0 to 145.9cm, 10 year of age: boys-39cm from 116.0 to 154.9cm, girls-39cm from 119.0 to 157.9cm, 11 year of age: boys-45cm from 119.0 to 163.9cm, girls-39cm from 122.0 to 160.9cm, 12 year of age: boys-45cm from 125.0 to 169.9cm, girls-42cm from 125.0 to 166.9cm, 13 year of age: boys-45cm from 128.0 to 172.9cm, girls-42cm from 128.0 to 169.9cm, 14 year of age: boys-48cm from 131.0 to 178.9cm, girls-36cm from 134.0 to 169.9cm, 15 year of age: boys-42cm from 137.0 to 181.9cm, girls-33cm from 137.0 to 169.9cm, 16 year of age: boys-39cm from 146.0 to 184.9cm, girls-30cm from 143.0 to 172.9cm, 17 year of age: boys-39cm from 146.0 to 184.9cm, girls-27cm from 143.0 to 169.9cm, 18 year of age: boys-36cm from 152.0 to 187.9cm, girls-27cm from 146.0 to 172.9cm, 19 year of age: boys-30cm from 155.0 to 184.9cm girls-24cm from 146.0 to 169.9cm, 20 year of age: boys-24cm from 158.0 to 181.9cm girls-18cm from 149.0 to 166.9cm, 3. Standard values of body weight, chest-girth and sitting height by body height of age were found all age groups from 7 to 20 years old and listed in tables from 3-a to 16-a. 4. Standard values of relative body weight, relative chestgirth and relative sitting height by body height of age were found all age groups from 7 to 20 years old and listed in tables from 3-b to 16-b. 5. Standard values of physical and nutritional indices (Rohrer index, Kaup index, Vervaeck index and Pelidisi index) by body height of age were found all age groups from 7 to 20 years old and listed in tables from 3-c to 16-c.
Summary
Study on the Indoor Air Pollution.
Hyung Suk Kim, Yang Won Park
Korean J Prev Med. 1984;17(1):137-144.
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AbstractAbstract PDF
No abstract available.
Summary
Toluene Determination in Workplace by Charcoal Tube Method.
Hyung Suk Kim, Do Suh Koo, Yang Won Park, Jeong Whan Lee
Korean J Prev Med. 1983;16(1):193-198.
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AbstractAbstract PDF
In the determination of organic solvents in workplaces direct reading tube method have been in Korea for decades. But this method is less accurate and couldn't measure TWA (Time Weighted Average) for 8 hours. Authors tried to detect Toluene concentration in S factory by using charcoal tube according to NIOSH method. The concentration was 158.8ppm. We propose this charcoal tube method should be substituted to get accurate results and to protect employee in workplaces related with solvents.
Summary
Lead Determinaiton in 25 microliter Whole Blood Sample by Atomic Absorption Spectrophotometer with Furnace Atomizer.
Hyung Suk Kim, Yang Won Park, Do Suh Koo
Korean J Prev Med. 1982;15(1):111-114.
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AbstractAbstract PDF
To determine Pb level in blood, we usually used to pull out about 5ml blood from venous vessel and this sample was digested with acids to decompose organic matter and then determined the Pb contents by Atomic Absorption Spectrophotometer with flame. But recent trend in quan titating Pb in small amount of sample is very much recommended in clinical chemistry specially pediatrics, and industrial hygiene and occupational health area. Authors tried to determine Pb contents in small amount blood of 25 microliter by using capillary tube method and got the possibility of determination of ng amount of Pb in 25yl whole blood sample without any pretreatment of sample.
Summary
Mineral Water Investigation on 10 Area in Seoul.
Hyung Suk Kim, Do Suh Koo, Yang Won Park
Korean J Prev Med. 1977;10(1):59-61.
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AbstractAbstract PDF
We are calling the erupting ground water as drug water or mineral water in Korea and thinking those water and food making water. Authors tried to investigate the evidence of contamination by user on the 10 erupting ground water and gained following results: 1. All of the mineral waters on 10 area in Seoul were unfittable to drinking water standard. 2. In the view of the bacteriology 80% were contaminated by coliform group. 3. The highest value of the free carbon dioxide contents were 652.96 ppm at Sam Sun Mineral Water.
Summary
An Epidemiological Study of 100 Cases of Lung Cancer in Korean.
Dong Joon Lew, Yang Won Park
Korean J Prev Med. 1975;8(1):1-6.
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AbstractAbstract PDF
An epidemiological study is to observe and analyse 100 cases of lung cancer in Korean, which had been diagnosed actually at the general hospitals in Korea from 1970 through 1974, to discover the tendency of the lung cancer by sex, age, occupation, duration of clinical symptoms before diagnosis, site of cancer in lung, size of cancer, occurrence, treatment, prognosis, smoking and pathological findings as follows. 1. Males were affected 5.7 times more than females, the peak incidence of lung cancer were 50 years old age group. 2. The occupations of the cases were commerce, agriculture, industry, laborers and teachers, etc. in thht order. 3. The average duration symptoms from onset to diagnosis were 5.5 months. 4. The cancers were affected more right side than left side of the lungs, Particularly the most of them were affected in the upper lobes of the lungs. 5. The average diameter of the tumors was 5.5crX6.5cm, However the largest of them was 10cm X 13cm. 6. The most cases of the lung cancers were occurred primarily. 7. Out of the 100 cases, 58 cases had no treatment, 23 cases had palliative-symptomatic treatment, of cases by special chemo-therapy, 7 cases by surgery, and 5 cases by cobalt 60 or X-gay. 8. In the view point of prognosis, the most cases of the lung cancers died within one year atfer diagnosis. 9. The smoking was one of the causative factor of lung cancer, but there was no significant diferentiation by means of the amount of smoking. 10. The most cases of the lung cancers diangosed histo-pathologically, were epidermoid(squamous) type.
Summary
Studiedies on the Pollution Bacteria in the River Water of Baek Ma.
Yang Won Park, Hyung Suk Kim
Korean J Prev Med. 1974;7(1):175-176.
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AbstractAbstract PDF
The purpose of this study was to survey bacteria which was known as a fecal bacteria living in the human and animal gastro and intestinal tract. The colony density of the fecal coliform and fecal streptococci was 280 and 130 in 100ml sample amounts respectively. Staphylococcus aureus and Pseudomonas aeruginosa which is usually exist in swimming pool and was known as indicator of the pool water contamination was detected.
Summary
A Study on the Physical Growth and Health Status of the Freshmen in a Private University.
Yang Won Park, Pyong Kap Lee, Soon Ypung Park, Hyong Suk Kim, Jae Myung Kim
Korean J Prev Med. 1972;5(1):97-104.
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AbstractAbstract PDF
For the purpose of ascertaining the status of physical growth and health status of the University students, an intensive survey was conducted by the authors towards a total of 1,250 (Male 792, Female 458) who passed the written entrance examination at the Kyung Hee University in 1972. The items included the measurements on physical growth, various physical and nutritional indices, status of visual distourbance, dental status and tuberculosis. The findings and results can be summarized as follows ; 1. Physical Growth and Development. i) The average of body height by anthropometric was 169.39+/-5.05cm in male and 157.45+/-4.43cm in female. ii) The averages of body weight by sex were 59.42+/-6.47Kg and 51.81+/-5.21Kg, respectively. iii) The averages of chest-girth were 87.18+/-5.30cm and 80.51+/-4.53cm. iv) The averages of sitting-height were 92.21+/-2.79cm and 86.28+/-2.57cm. In all cases the male measurements were higher than female. 2. Various ludices about Physical Growth and Development; i) Relative body weight by sex were 35.08and 32.91, relative chestgirth 51.47 and 51.13, and relative sitting-height 54.43, 54.79, respectively. ii) Rohrer index was 1.222 in males and 1.327 in females, Kaup index 2.071 and 2.089, Verveck index 86.54 and 84.04, and Pelidisi index 91.15 and 93.08, respectively. 3. Status of visual distourbance. The vision of the students under 0.8 with Landolt's testing chart was 45.4% in left eye and 46.6% in right eye (male : 44.4% and 45.7%, female : 47.2% and 48.0%), while under 0.6in both visions was 41.0% and 40.5% (male 40.8% and 40.7%, female : 41.5% and 40.2%),respectively. 4. Dental Status. Out of total 19.4% (male 19.2%, female 19.6%) had gingivitis, the female incidence rate of gingivitis was higher than male. Average number of teeth in each subjects was 29.6 teeth; male had 29.9 teeth and female had 29.1 teeth. The caries rate was 78.9%(male 75.6%, female 84.5%), the female caries rate was higher than male. The average number of i) Caries per tooth rate was 8.5% in male and 9.2% in female, ii) Missing per tooth rate was 0.3% and 0.2%, iii) Filling per tooth rate was 3.9% and 4.2%, in all cases, the female incidences were higher than the male. The average number of D.M.F. was 3.8 teeth in male and 4.0 teeth in female, female was higher than male. The average rate of D.M.F. was 12.7% in male and 13.7 in female, female was higher than male. 5. Pulmonary infiltration. Among the total, 53 students were diagnosed as pulmonary infiltration (tuberculosis), of whom 51 were minimal cases, one were moderately advanced case and one were far advanced case.
Summary
A Study on the Water Pollution of Mountain Wells around Seoul Area.
Yang Won Park, Pyong Kap Lee, Hyung Suk Kim, Soon Young Park
Korean J Prev Med. 1972;5(1):37-42.
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AbstractAbstract PDF
Mountain Wells are very important water source of the most the climbers in Seoul area. But the facilities around the wells are not modernized to prevent from contamination of microorganism and the other pollutants. We focussed our intention on the detection of some harmful chemical ingredients and contaminants. A total of 58 wells were examined according to the Standard Methods(APHA) and the following results were obtained : 1) Among the examined 58 wells, only 10 wells adequate to the drinking water standard, 2) 7.9mg of liberated CO2 was found in the Tchun-Ho-Dong Mineral Well, 3) Chemically harmful ingredients were not found, 4) The Mountain Wells were contaminated by Coliform Groups as many as 18 times than rural well.
Summary
A Study on Status of Birth and Death in an Urban Area.
Yang Won Park, Pyong Kap Lee, Soon Young Park, Soon Ja Koh
Korean J Prev Med. 1971;4(1):19-30.
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AbstractAbstract PDF
A survey was conducted by the staff of the Dept. of Preventive Medicine, Kyung Hee University, School of Medicine, from April through May 1971, on such events as delivery, death, abortion and family planning. The survey directed to a total population 6,552 (Male 3,133; Female 3,419) residing in this area (1,262 households) led us to the following findings : 1) Two year averages of crude birth rate, crude death rate and natural increase rates were 24.9, 5.0 and 19.9 respectively. 2) Infant death rates for the years 1969 and 1970 were 13.2 and 5.8 respectively, mean for the two year period being 9.3. 3) Hospital deliveries rated 68.5 percent, Home deliveries 28.4 percent and deliveries at midwives' offices 2.7 percent. 4) Deliveries other than hospital and midwives' office deliveries were found to be attended more often by mothers. 5) About 41.4 percent of all pregnant women during last two years received prenatal care once or more. 6) The induced abortion rate was 6.7 percent in 1969 and 7.5 percent in 1970. 7) The spontaneous abortion rate was 1.1 percent in 1969 and 1.4 percent in 1970. 8) Hypertension was the most frequent cause of adult death(21.6%). 9) The rate of current practice in family planning was 43.3 percent of all women.
Summary

JPMPH : Journal of Preventive Medicine and Public Health