1.Hospital Services Utilization by Insured and Non-insured Patients for Cesarean Section in a University Hospital.
Seung Hum YU ; Woo Hyun CHO ; Dai Kyu OH
Korean Journal of Preventive Medicine 1981;14(1):53-58
In order to discover difference that may exist in quantity of medical care services, length of stay and hospital changes between insured and non-insured patients, records for primary Cesarean section patients discharged between July 1978 and June 1980 from a university hospital were examined. In addition, Cesarean section rates among the total deliveries for a two-year period between the groups were studied. The results showed that volume of services was greater and length of stay was longer among the insured, however, charges were higher among the non-insured. Cesarean section rates were statistically significantly different between insured and non-insured patients for every age group except the group of 35 or more.
Cesarean Section*
;
Female
;
Humans
;
Length of Stay
;
Pregnancy
2.Occurrence of Alternaria cassiae in Seeds of Sickle Senna in Korea.
Ik Hwa HYUN ; Hye Sun CHO ; Seung Hun YU
Mycobiology 2001;29(2):104-106
Alternaria cassiae Jurair & Khan was recorded on seeds of sickle senna(Cassia tora L.). Seed infection ranged from 25~45% in two samples. Developing roots and shoots turn brown and died in case of severe infection. Detailed descriptions were given on the habit characters of the fungus and on the morphology of conidiophores and condia. This is the first report of A. cassiae on seeds of Cassia.
Alternaria*
;
Cassia*
;
Fungi
;
Korea*
3.Diphyllobothrium latum infection in a child with recurrent abdominal pain.
Seung Hyun LEE ; Hyun PARK ; Seung Taek YU
Korean Journal of Pediatrics 2015;58(11):451-453
Diphyllobothrium latum infection in humans is not common in Republic of Korea. We report a case of fish tapeworm infection in a 10-year-old boy after ingestion of raw perch about 8 months ago. The patient complained of recurrent abdominal pain and watery diarrhea. A tapeworm, 85 cm in length, without scolex and neck, was spontaneously discharged in the feces of the patient. The patient was treated with 15-mg/kg single dose praziquantel, and follow-up stool examination was negative after one month. There was no evidence of relapse during the next six months.
Abdominal Pain*
;
Cestoda
;
Cestode Infections
;
Child*
;
Diarrhea
;
Diphyllobothrium*
;
Eating
;
Feces
;
Follow-Up Studies
;
Humans
;
Male
;
Neck
;
Perches
;
Praziquantel
;
Recurrence
;
Republic of Korea
4.Myoepithelioma arising from trachea: A Case report.
Hyun Seok LEE ; Seung il PARK ; Kwang Hyun SOHN ; Eun Sil YU
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(12):962-964
No abstract available.
Myoepithelioma*
;
Trachea*
5.Pulmonary carcinosarcoma: Two Cases Report.
Hyun Seok LEE ; Seung Il PARK ; Kwang Hyun SOHN ; Eun Sil YU
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(7):564-567
No abstract available.
Carcinosarcoma*
6.Two Cases of Leiomyoma in Vulva and Vagina.
Hyun Chang MOON ; Seung Yun YI ; Yu Jin CHO ; Byung Chan OH
Korean Journal of Obstetrics and Gynecology 1999;42(8):1854-1856
Leiomyomas of vagina and vulva are rare solid tumors, but most common mesenchymal tumors in adult woman. Most of the reported cases have been benign. The tumors were firm, well-defined submucosal masses in a majority of patients. We experienced two cases of vulvar and vaginal leiomyoma, thus it is presented with a brief review of the cases and its literatures.
Adult
;
Female
;
Humans
;
Leiomyoma*
;
Vagina*
;
Vulva*
7.Projection of Physician Manpower Supply in Korea.
Seung Hum YU ; Woo Hyun CHO ; Yong Ho LEE ; Byung Yool CHEON
Korean Journal of Preventive Medicine 1988;21(1):61-69
In this study, the number of physicians presently living in Korea thoroughly estimated by several means and, on this bases, their productivity and level of supply were estimated. The results were as follows : First, the number of physicians who did not notify the Korea Medical Association in May 1987 were 10,110, including 4,093 emigrant physicians(40.5%), 861 military medical officers, 745 public health doctors, and 107 decreased physicians. A total of 1,330 physicians could not be identified by any effort. Second, among the 34,897 registered physicians as of May 1987, 29,933(85.8%) were residing in Korea, 4,115 physicians(11.8%) had emigrated to other countries, and 849 physicians(2.4%) were decreased. Practicing physicians defined as those in Korea who were not retired, serving in the military, or completing residencies or internships, comprised 78.6%(27,414 physicians) of the total number of registered physicians. Third, it is estimated that in the year 2000 the number of registered physicians, physicians residing in Korea, and practicing physician will be 75,040, 64,038 and 57,655, respectively and these are increases of 115.0%, 113,9%, and 110.3%, respectively, compared to 1987. Fourth, the population physician ratio will be 759 to one physician in the year 2000. Fifth, the productivity of physicians, as calculated by relative values defining the productivity of 35 to 44 year-old male physicians as 10, will increase 110.7% in the year 2000 compare to that of 1987, and this increment is almost the same level as that of physicians supply. From the results of the present analysis of physicians manpower and supply projection, it can be recognized that the development of a regular notification system is necessary in order to identify precisely the number of physicians. Also a policy a physician supply is essential in order to adjust in advance the number of physicians, otherwise there will be surplus to the medical demand.
Adult
;
Efficiency
;
Emigrants and Immigrants
;
Humans
;
Internship and Residency
;
Korea*
;
Male
;
Military Personnel
;
Public Health
8.A Case of Dandy-Walker Variant Associated with Infantile Esotropia of Abnormaly Directed Extraocular Muscle.
Seung Young YU ; Kyung Hyun JIN ; Mi Ae LEE
Journal of the Korean Ophthalmological Society 1999;40(2):620-623
The Dandy-Wlaker syndrome is a developmental disoeder characterized by cystic dilatation of the fourth ventricle and agenesis or hypoplasia of the cerebellar vermis and is usually associated with hydrocephalus. This syndrome is also associated with intracranial malformations such as agenesis of corpus callosum, and extracranial malformations such as facial anormalies (cleft palate, cleft lip, and ocular anomalies), polycystic kidney, and cardiac anormalies. Reported associated ophthalmic anomalies are microphthalmos, coloboma, and congenital cataract.We experienced a case of infantile esotropia in abnormal insertion and direction of lateral rectus muscle as a variant of the Dandy-Walker syndrome accompanied by cleft palate and cleft lip in a 19-month-old male infant. Subsequent treatment of the 30delta esodeviation and left inferior oblique muscle overaction, including resection of the lateral rectus muscle in both eyes and the myectomy of the inferior oblique muscle in the left eye, yielded satisfactory results, so we report this case, with a review of the pertinent literature, as the first case of Dandy-Walker syndrome associated with esotropia with abnormal course of lateral rectus muscle in Korea.
Agenesis of Corpus Callosum
;
Cleft Lip
;
Cleft Palate
;
Coloboma
;
Dandy-Walker Syndrome*
;
Dilatation
;
Esotropia*
;
Fourth Ventricle
;
Humans
;
Hydrocephalus
;
Infant
;
Korea
;
Lip
;
Male
;
Microphthalmos
;
Polycystic Kidney Diseases
9.Health Care Utilization and Its Determinants among Island Inhabitants.
Seung Hum YU ; Woo Hyun CHO ; Chong Yon PARK ; Myung Keun LEE
Korean Journal of Preventive Medicine 1987;20(2):287-300
Island regions suffer from a shortage of health care in part because they are less developed, they cover a widespread area relative to the population, and due to transportation barriers. The purpose of this study was to assess the level of illness and the magnitude of medical care utilization, and to investigate the determinants of utilization in these area. The data were collected by means of a household survey conducted from February 16 to 25, 1987 on 5 islands which were selected in consideration of the size of the population, the distance from the main land, and the distribution of health care facilities. The household response rate was 89.1% (491 of 551 households), and 1971 persons were surveyed. The major findings of this study are as follows: 1) The morbidity rate of the island inhabitants was 27.7% during the two weeks, and 25.5 chronic illnesses and 9.1 acute illnesses per 100 persons, were noted. Differences in the magnitude of illness were statistically significant by sex, age, education, and family size. 2) The magnitude of total ambulatory care utilization was 16.8 visits per 100 persons during the two weeks, which was less than that of other regions; and differences in the magnitude of total ambulatory care were statistically significant by sex, age, education, occupation, and family size. 3) Unmet needs were classified as 56.0% in chronic illnesses and 19.6% in acute illnesses; and differences in unmet needs were statistically significant by sex, age, education, occupation, income, and family size. 4) Statistically significant determinants in medical care utilization included the frequency of acute illness and chronic illness, and income in total utilization; the frequency of chronic illness and acute illness, and medical care insurance in physician visits. 5) According to the results of the path analysis, need factors had the greatest effect on utilization, and predisposing factors had more indirect effects through enabling or need factors than direct effects.
Ambulatory Care
;
Causality
;
Chronic Disease
;
Delivery of Health Care*
;
Education
;
Family Characteristics
;
Humans
;
Insurance
;
Islands
;
Occupations
;
Transportation
10.A Comparative Study of Two Survey Methods for Health Services Research Modified Self-administered Questionnaire vs. Interview Survey.
Seung Hum YU ; Yong Ho LEE ; Woo Hyun CHO ; Chong Yon PARK
Korean Journal of Preventive Medicine 1988;21(2):431-441
The purpose of this study was to compare the difference of two survey methods for health services research. Data were collected by means of two types of household survey conducted from March 11 to September 19, 1985. A probability sample of 30,613 persons was taken from 180 Enumerated Districts designated by the Economic Planning Board. The sample was divided into two groups systematically. One group was surveyed by the self-administered questionnaire and the other group was interviewed. Response rates were 81.4% and 90.6% respectively. The data were analyzed by the ratio of the results of the self-administered survey to those of the interview survey. No difference was observed in sex, age, residence, or occupation between the two groups. However the respondents' characteristics were statistically different between the two groups. The major findings of this study are as follows : 1. The morbidity rate was 142.5 per 1,000 persons during the two week period by the self-administered questionnaire survey and 74.3 per 1,000 persons with the interview survey method. The ratio of the morbidity rate by the self-administered questionnaire to that by the interview was 1.92, and the difference between the two rates were due to the personal characteristics. 2. The out-patient utilization rate was 10.2 visits per person per year by the self-administered questionnaire survey and 5.4 by the interview survey, and the ratio was 1.89; the admission rate was 3.2 times per 100 persons per year by the self-administered questionnaire survey and 1.9 times by the interview survey, and the ratio was 1.68. Differences due to the sociodemographic characteristics were greater in the out-patient utilization rates than in the admission rates. 3. Percentages of effective medical care demand were 90.2% in the self-administered survey and 92.3% in the interview survey; the ratio was 0.98 which was less than that of the morbidity rate and medical care utilization. But, differences of effective medical care demand occurred in persons with no occupation, and aged or low educated respondents. 4. Respiratory illness had the highest frequency in the two survey methods. But there was a slight difference between the two survey methods in morbidity composition. 5. It was concluded that data collected by the interview survey were inclined to be underestimated and this problem can be corrected by a modified self-administered survey.
Surveys and Questionnaires*
;
Family Characteristics
;
Health Services Research*
;
Health Services*
;
Humans
;
Occupations
;
Outpatients
;
Surveys and Questionnaires*
;
Sampling Studies