• Journal of Preventive Medicine and Public Health
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• v.17 no.1
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• pp.193-202
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• 1984

Clinical and statistical observations were performed on 1,930 cases of pregnant women who were admitted for delivery in the Department of Obstetrics, Kyung Hee University Hospital during 1 year (1982) and on 1,961 cases of neonates who were born to the former. The results were obtained as follows: 1. Concerning maternal age distribution, the commonest age group was that of $25{\sim}29$ and the proportion of the age group $20{\sim}29$ was 82.4% of all. 2. Concerning obstetrical history, the proportion of the women who had no prior experience of delivery nor abortion was the highest, 45.5%. 3. Concerning abortion history, 36.1% of the women had experienced it and the mean number was 1.8. 4. Type of delivery was as follows: Spontaneous delivery; 58.1%, Vacuum extracted delivery; 22.4%, Cesarean section; 18:8%, Breech delivery; 0.7%. 5. Gestational period distribution of the neonates was as follows: Under 37 weeks (Preterm); 7.1%, Between 38 and 42 weeks (Term); 87.2%, More than 43 weeks (Postterm); 5.7%. 6. Sex ratio of male to female of the neonates was 1.03:1. 7. Birth weight distribution was as follows: Under 2,500gm.; 9.0%, Between 2,501 and 4,000 gm.; 85.5%, More than 4,001gm.; 5.5%. 8. The measured growth data of neonates were as follows: Body weight; 3.28kg. for male, 3.18kg. for female, Body height; 50.40cm for male, 49.77cm for female, Chest circumference; 32.54cm for male. 32.17cm for female, Head circumference; 33.49cm for male, 33.11cm for female. 9. The mean values of Apgar score per 1 minute were 7.70 for male and 7.63 for female. 10. The incidence rate of neonatal jaundice was 50.0% and no difference in sex respectively, but more prevalent in preform baby. 11. The incidence rate of neonatal diseases was 8.9% and the commonest disease was neonatal infection (35.6%). 12. Concerning multiple pregnancy, ratio to single births was 1 : 64.3 and the sex ratio of male to female was 1 : 1.03. 13. The incidence rate of congenital anomaly was 2.4% and the commonest anomaly was digestive system anomaly (30.9%). 14. The neonatal mortality rate was 11.73 per 1,000 neonates, and the majority of neonatal deaths were in low birth weight and preform neonates (78.3%). 15. The causes of neonatal deaths in decreasing order of frequency were abnormal ventilation (39.1%), prematurity (30.4%), congenital anomaly (13.0%) and etc.

• The Journal of Korean Academy of Prosthodontics
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• v.11 no.1
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• pp.9-14
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• 1971

The author measured the maximum interincisal distance by means of the sliding caliper. The subjects measured here were 149 healthy Korean males and 229 females, ranging from 15 to 49 years old, with normal occlusion. The results were as follows; 1. The mean value of maximum interincisal distance was $50.03{\pm}0.22mm$. in male and $45.18{\pm}0.14mm$. in female. 2. There was a significant difference in the mean value between male female. 3. The interincisal distances in maximum opening were slightly larger in male than female. 4. There was no significant difference in the mean value between the age groups in Korean adults. But it has been revealed that there was apparent difference in the mean value between 15~19 years and 20~29 years old, in female. 5. It has been appeared that maximum interincisal distance in male was 69mm, minimum 37mm., and maximum interincisal distance in female was 58mm. minimum. 30mm.

• Journal of Families and Better Life
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• v.20 no.6
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• pp.185-195
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• 2002

This study examined the psychological aspects of a single life with particular focus on the personality ＆ emotional characteristics, the social ＆ behavioral characteristics, marriage, happiness, and sex of singles. The sample consisted of 160 single male and female aged 30 to 49. The results of the questionnaire survey showed that the singles tended to be self-centered, especially when they did not have a plan to get married, and that most of the singles in the 30s wanted to have a friend of the other sex. In the view of marriage, young, male singles were more likely to form a family than old, female singles. Also, female singles, bereaved or divorced, were shown to have fear about marriage and negative attitudes toward marriage more than male, never-married singles did. Regarding the extent of happiness, old, female (rather than young, male) singles tended to be more satisfied with a single life. Besides, old, religious singles were less likely to feel lonely than young, unreligious singles. In addition, it appeared that college-graduated singles had rather liberal view on sex although singles generally showed rather conservative toward sex in this study. Therefore, the findings reveal that singles were self-centered, social, positive view on marriage, somewhat happy of a single life, and having a conservative attitude about sex. Further understanding of a single life in modem society is needed in future studies.

• Biomolecules & Therapeutics
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• v.8 no.1
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• pp.38-43
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• 2000

Several studies have shown that the stomach has sufficient alcohol dehydrogenase (ADH) activity to metabolize some amount of orally administered alcohol and the sex-related differences in the first-pass metabolism of alcohol might be associated with differences in the activity of gastric ADH(GADH). The aim of this study was to asses the sex-related differences in GADH in 48 male and 48 female Sprague-Dawley rats aged 1, 4, 10, 15, 20, and 30 weeks which each aged group had same sex ratio. The GADH activity was determined spectrophotometrically at 37$^{\circ}C$. The formation of NADH was monitored at 340nm for 10 minutes in the 1 ml of reaction mixture (0.5 M of Tris-HCl, pH 7.2 + 1.5 M of ethanol + 2.8 mM of NAD + 30 $\mu$l gastric mucosal supernatant). The GADH activity (nM of NADH/min/mg of cytosolic protein) was calculated using molecular extinction coefficient of 6.22 $\textrm{cm}^2$/$\mu$M for NADH. The GADH activities were 2.94$\pm$0.82 (n=48) in female rats and 3.34$\pm$2.17 (n=48) in male rats and had not significant difference between sex. However, the GADH activities were significantly (p<0.01) higher in female (1.91$\pm$0.59 and 3.30$\pm$0.49) than in male (0.68$\pm$0.43 and 1.92$\pm$0.81) of 1 and 4 weeks rats. However, it was significantly (p<0.05) higher in male (6.48$\pm$1.81, 3.65$\pm$1.04 and 5.13$\pm$1.30) than in female (4.23$\pm$1.23, 2.18$\pm$0.77 and 2.56$\pm$0.93) of 10, 20 and 30 weeks rats, respectively. Therefore, the results suggested that sex-related differences of the GADH activities in same aged rats were existed by age.

• Journal of Nutrition and Health
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• v.34 no.5
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• pp.554-567
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• 2001

It is necessary to compare the dietary characteristics among different age groups because different nutritional problems require different dietary applications. This study was performed to identify the nutritional characteristics of Korean diet among different age groups. The study subjects consisted of preschool children(PC), elementary school children(EC), high school students(HS), college students(CS), and adults over 30 years old living in Seoul and the surrounding areas. The subjects over 30 years old were classified to 30-49 years, 50-69 years, and over 70 years. A dietary survey was conducted using 24-hour recall method and data were collected from 2392 subjects. Energy intake was as much as 1771kcal for PC, 2139kcal for EC, 2475kcal for HS, 2276kcal for CS, 1860kcal for 30-49 years, 1715kcal for 50-69 years, 1326kcal for over 70 years. The subjects of PC, EC, HS, and CS groups got about 25% of energy from fat, but the subjects in 30-49 years, 16%, those in 50-69 years, 15%, and those over 70 years, 13%. The energy consumption from protein was about 15% in each age group. Percent of energy intake as Korean RDA was greater than 100% for PC, EC, HS, and male CS groups. The percent intake for RDA of calcium, iron, vitamin A, and vitamin B$_2$was low in most age group. Iron intake was inadequate in female of PC and CS groups, and subjects in 30-49 years and over 70 years. Mean adequacy ratio(MAR) was 0.9 in PC, and decreased with increase of age. Therefore MAR did not reach to 0.7 among subjects over 70 years. Index of nutritional quality(INQ) for calcium, iron, vitamin A, and vitamin B was below 1 in most age groups. From these results, major nutritional problems of each age group were overall inadequate intakes of calcium and iron, excess consumption of protein and fat for PC, EC, HS, and CS groups, and inadequate nutrients intake of subjects over 70 years old. According to these results, each age group seems to need specific nutritional intervention. (Korean J Nutrition 34(5) : 554~567, 2001)

• The Journal of Korean Society of Virology
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• v.27 no.2
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• pp.129-135
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• 1997

Serum samples from 123 males and 123 females collected by age in 1996 were analyzed for antibodies against surface antigen of Hepatitis B virus and C22-3, C200 antigens of Hepatitis C virus. Sera from the children under the age of 10 showed 30% seropositivity to the surface antigen of Hepatitis B virus, 33.3% in $10{\sim}19$ year group, 20% in $20{\sim}29$ year group, 17.6% in $30{\sim}39$ year group, 3.3% in $40{\sim}49$ year group, 5.9% in $50{\sim}59$ year group, 8,3% in $60{\sim}69$ year group, 2.9% in $70{\sim}79$ year group, but antibody could not found in $80{\sim}86$ year group. 12 out of 123 male sera were positive, 19 out of 123 female sera were positive and overall rate of positivity of antibody against surface antigen of Hepatitis B virus was 12.6%. Serum samples from peoples under the age of 30 had not antibody against C22-3, C200 antigens of Hepatitis C virus. The positivity rate was 2.9% in $30{\sim}39$ year group. 5 out of 30 sera from $40{\sim}49$ year age group were positive, and 3 positive sera showed extremely high titer (1:524,288) but the titers of two remaining sera were 1:32, 1:8,192 respectively. 5.9% was positive in $50{\sim}59$ year group, 8.3% in $60{\sim}69$ year group, 11.8% in $70{\sim}79$ year group but all negative in $80{\sim}86$ year group 6 out of 123 male sera were positive (4.9%), 9 out of 123 female sera were positive (7.3%). Overall rate of positivity of antibody against C22-3, C200 antigen of Hepatitis C virus was 6.1 %. None out of 246 sera had both antibodies against Hepatitis B virus and Hepatitis C virus.

• Journal of Korean Ophthalmic Optics Society
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• v.12 no.3
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• pp.35-38
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• 2007

This study surveyed on eye size, face types and glasses wears of normal 100 young peoples from 20 to 30 years old. The analysis of data resulted in as follows: 1. The vertical eye size were in case of below 2.4 mm (2%), 2.5-2.9 mm (40%), 3.0-3.5 mm (57%), and in case of high 3.6 mm (1%). 2. The horzontal eye size were in case of below 1.1 mm (52%), 1.2-1.4 mm (28%), 1.5-1.7 mm (18%), and in case of high 1.8 mm (2%). 3. As a whole, the face types were oval type (29%), round type (24%), square type (18%), and triangle type (2%). 4. As the male, the face types were oval type (32%), round type (10%), square type (26%), and triangle type (32%). 5. As the female, the face types were oval type (18%), round type (40%), square type (12%), and triangle type (30%). 6. As a whole, the FPD size were in case of larger than PD (49%), in case of suitable (25%), in case of smaller than PD (49%). 7. As the male, the FPD size were in case of larger than PD (28%), in case of suitable (36%), and in case of smaller than PD (32%). 8. As the female, the FPD size were in case of larger than PD (44%), in case of suitable (26%), and in case of smaller than PD (30%).

• Journal of Korean Physical Therapy Science
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• v.8 no.2
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• pp.961-965
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• 2001

The aim of this study is to present the basic reference data of age and specipic gait parameters for Korean Adult. The basic gait parameters were extracted from 20 Adult, 10 men and 10 women, 21 to 24 years of age using VICON 512 Motion Analyzer. The temporal gait parameters and kinematic parameters of Korean Adult similar to other western reference data. The results were as follows: 1) The mean Cadence of the male to the female were 113.5 steps/min to 117.6 steps/min. 2) The mean Walking Speed of the male to the female were 1.30 m/s, to 1.27 m/s. 3) The mean Stride Length of the male to the female were 1.35 m, to 1.30 m. 4) The mean maximal angles of pint on the pelvic tilt motion for different male to the female were $9.80^{\circ}$ to $7.75^{\circ}$. (p<0.05) 5) The mean maximal angles of pint on the hip flexion motion for different male to the female were $22.62^{\circ}$ to $27.65^{\circ}$. (p<0.05) 6) The mean maximal angles of pint on the knee flexion motion for different male to the female were $55.78^{\circ}$ to $55.49^{\circ}$. (p>0.05) 7) The mean maximal angles of pint on the ankle dorsiflexion motion for different male to the female were $12.47^{\circ}$ to $13.39^{\circ}$. (p>0.05).

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.12
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• pp.7381-7383
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• 2013

Background: Male breast cancer accounts for less than 1% of all cancer in men and only around 1% of all diagnosed breast cancer. Despite a significant raise in the last 25 years, it still remains a rare disease. Materials and Methods: We conducted a retrospective study from 2004-2011 with 21 male breast cancer patients. We aimed to analyze the epidemiologic data (age, personal and family history), tumor characteristics (size, histological type, location, TNM stage, receptors), surgery, adjuvant chemotherapy and radiation therapy, hormonal therapy and survival (relapse, follow up, death) who reffered to our center with breast cancer. Results: The median age was $49.2{\pm}14.2$ years (range 30-83 years). A family history of breast cancer was noted in four cases. The main clinical complaint was a retroareolar mass in 85.7%of patients (n=18). Histologically, 85.7% (n=18)were invasive ductal carcinoma and 4.7% (n=1) had ductal carcinoma in situ and 9.4% (n=2) had mixed histology including invasive medullary and ductal carcinoma. Hormonal therapy was delivered to 16 cases (76.1%) due to ER or PR positivity. During median follow up of 30 months (3-84 month), distant metastases were evident in 4 cases (19%). During the follow-up period, only one patient died due to metastatic disease. The mean time to recurrence detection was 30 months. Conclusions: The percentage of cases of male breast cancer is very low compared to breast cancer in females, explaining why very few investigations have been conducted in Iran. Limited coverage in the literature make gender-specific findings difficult so future research of this entity involving multi-institutional cooperation and longer follow up is essential to provide new insights about the biological and clinical factors of this rare cancer.

• Journal of Marine Life Science
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• v.7 no.1
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• pp.37-44
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• 2022

This study was performed to obtain information on the sex ratio, size at sexual group maturity, and main spawning period of Glyptocephalus stelleri. The sex ratio (female: male) was 1:0.54 (n=189:103, 64.7% female), and the frequency of females in the population tended to increase with total length. The oocyte development pattern was group synchronous development, in which oocyte groups at different stages were identified within the same ovary. The total length at 50% sexual group maturity was analyzed using a logistic regression model, and was determined to be 28.51 (female) and 30.49 cm (male). The gonadosomatic index (GSI) displayed the highest values in April (female) and March (male), and the main spawning period being in April to May.