• Science of Emotion and Sensibility
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• v.16 no.4
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• pp.481-492
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• 2013

This study sorted scores of individual characteristics and multiple intelligence by sex, handle, blood type and age through previous questionnaire with 462 adult males and females. Then electrode was attached to prefrontal lobes Fp1 and Fp2 with EEG measuring system and changes of concentration between no stimulation state and pure pink noise stimulation and their relations to multiple intelligence were examined. As a result of analysis of covariance, the mean concentration of all subjects was significantly higher in the pink noise stimulation compared to no stimulation. According to individual characteristics, concentration was significantly higher in left-hander, type A blood, and group in their thirties except for gender. Concentration in pink noise state strengthened the relation to spatial intelligence and made negative correlations with musical intelligence compared to no stimulation state. These results suggested that individual characteristics should be reflected on using pink noise for improving concentration.

• Journal of Environmental Health Sciences
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• v.43 no.2
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• pp.157-166
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• 2017

Objectives: Exposure to hazardous air pollutants could be affected by sociodemographic factors such as age, gender and more. Information on time spent in microenvironments has a critical role in exposure assessment. The purpose of this study was to analyze the exposure pathways which influence personal exposure through time-activity patterns and sociodemographic factors. Methods: A total of 379 subjects were collected from the second term of the Korean National Environmental Health Survey. A questionnaire survey in relation to sociodemographic factors and a time-activity diary were carried out for personal exposure to toluene. Focusing on personal exposure to toluene, factors affecting personal exposure were analyzed using multiple regression analysis. Results: Participants spent their time in an indoor house for $16.8{\pm}4.0hr$, workplace or school $2.3{\pm}3.5hr$, and other indoor $2.1{\pm}2.2hr$. Sociodemographic factors were significantly different among each personal exposure and microenvironment. Time of staying at an office turned out to be a main factor from point of exposure in exposure pathway using multiple regression analysis. As a result, this means that exposure may be different according to the time of staying in each microenvironment. Conclusions: Personal exposure to air pollutants might be decided by time-activity pattern indicating when, where, and which activities people pursue, as well as individual sociodemographic factors.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.7
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• pp.3143-3147
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• 2012

Background: Previous studies investigating the association of physical activity with risk of lung cancer reported conflicting results. In order to update and improve available evidence on any link, a meta-analysis was performed. Method: We searched the PubMed database for prospective cohort studies investigating the relation of physical activity with risk of lung cancer. The pooled relative risk (RR) with its 95% confidence intervals (95%CI) was used to assess the association. Results: We included 14 prospective studies with a total of 1,644,305 participants, with 14,074 incident lung cancer cases documented during follow-up. Meta-analysis of all 14 studies suggested both high and medium levels of physical activity to be associated with decreased risk of lung cancer compared to the reference group with low level of physical activity (for high level, RR = 0.77, 95%CI 0.73-0.81, P < 0.001; for medium level, RR = 0.87, 95%CI 0.83-0.90, P < 0.001). Subgroup analyses by gender found obvious associations in both men and women. No publication bias was observed. Conclusion: Our findings suggest that high and medium levels of physical activity have a beneficial effect on lung cancer by reducing the overall risk of tumour development among both men and women.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.7
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• pp.3149-3152
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• 2012

Objective: The prognostic significance of perineural invasion (PNI) in gastric cancer has been previously investigated but not clearly clarified. The objective of our study was to investigate the role of PNI as prognostic factor in patients undergoing curative surgical resection and without distant metastasis in comparison with other clinicopathological factors. Methods: Between 2001 and 2010, 287 cases of gastric adenocarcinoma underwent radical gastrectomy recorded in hospital based registries. PNI was assessed as positive when cancer cells were seen in the perinerium or neural fascicles intramurally. Categorical and continuous variables were summarized using descriptive statistics and compared using chi-square and Mann-Whitney U tests, respectively. Cancer related survival rates were estimated by the Kaplan-Meier method. Results: PNI was positive in 211 of 287 cancers (73%), with a positive relation to lymph node metastases and advanced stage (p=0.0001, p=0.0001, respectively), mural invasion, and lymphatic and blood vessel invasion (p=0.0001, p=0.0001, respectively). The median survival of the PNI positive patients was significantly shorter than that of their PNI negative counterparts (24.1 versus 38.2 months, p=0.008). In the multivariate analysis, we detected PNI was an independent prognostic factor (p=0.025, HR=1.21, 95% CL 1.08-2.3) along with classical clinicopathological variables such as lymph node involvement (p=0.001), pT stage (p=0.03), and LVI (p=0.017), but not age, gender, tumour localization, stage, histologic type, and surgery procedure. Conclusions: PNI positivity in gastric cancers was related mural invasion, lymph node involvement, advanced stage and lymphatic and venous blood vessels. The presence of PNI appeared as an independent prognostic factor on survival on multivariate analysis, not influenced by tumor stage, lymph node metastases and other classical factors.

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.649-660
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• 2016

The purpose of this study was to identify the differences and relations among burden, coping behavior and ego-resilience on caregivers of stroke patients. Participants were 74 caregivers of stroke patients who were hospitalized in the department of Neurosurgery and Neurology. Data was collected from March, 30 to September, 30 of 2014. Result: Caregivers burden was 3.66, coping behavior and ego-resilience were 2.67 and 3.10. Caregivers burden had significant differences according to caregivers gender, age, relationship with the patient, education level, marital state, and subjectively perceived physical condition. Coping behavior had significant differences according to martial state and caregiving hours, ego-resilience had no variable which showed significant differences. There is little correlation among these three variables. In conclusion, the burden levels are high in caregivers. It requires measures for reducing the caregivers burden. Further replication studies to identify the relation among these three variables are needed as well.

• Korean Journal of Human Ecology
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• v.18 no.3
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• pp.757-768
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• 2009

With the women's education level higher and gender equality more promoted, women's opportunity of taking part in business is increasing. Entering the emotional age which counts self-image as being important, there is a view that woman's appearance has a direct relation to their social life. The research is to examine the hypothesis and important factors for women workers at banks for their successful career, that is, to verify the effects of women's appearances on their social life, furthermore, to help female applicants for a bank and the bank clerks have a desirable social life. The subjects were 200 male and 100 female bank clerks and the research was analyzed on the basis of a total of 300 questionnaires. The results are as follows: first, 52 percent of male subjects responded that the factors of "sociability" and "character and good manners" are the most important in social life, while 47 percent of female subjects answered the factor of "ability" is so. Second, 61.5 percent of male and 84 percent of female respondents answered that woman's appearance has a potent influence on their social life. Third, 76 percent of male and 90.9 percent of female respondents answered that when the companies employ woman workers, they take woman's appearance into consideration. It shows even at job interviews that good-looking applicants are in a better position, for bankers must consult with many customers and so their neat and tidy appearance such as their natural make-up and decent hair style (short-hair style) is one of significant factors to perform their jobs. Therefore, appearance managements are primary for women bankers to work at their workplace.

• Nutrition Research and Practice
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• v.6 no.5
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• pp.421-428
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• 2012

Several studies revealed that low calcium intake is related to high prevalence of cardiovascular diseases such as hypertension. The prevalence of hypertension is high in Koreans along with their low dietary calcium consumption. Thus, the aim of this study was to evaluate the status of calcium intake between the hypertension and normotension groups and to investigate the correlation between dietary calcium intake and blood pressure, blood lipid parameters, and blood/urine oxidative stress indices. A total of 166 adult subjects participated in this study and were assigned to one of two study groups: a hypertension group (n = 83) who had 140 mmHg or higher in systolic blood pressure (SBP) or 90 mmHg or higher in diastolic blood pressure (DBP), and an age- and sex-matched normotension group (n = 83, 120 mmHg or less SBP and 80 mmHg or less DBP). The hypertension group consumed 360.5 mg calcium per day, which was lower than that of the normotension group (429.9 mg) but not showing significant difference. In the hypertension group, DBP had a significant negative correlation with plant calcium (P < 0.01) after adjusting for age, gender, body mass index (BMI), and energy intake. In the normotension group, total calcium and animal calcium intake were significantly and positively correlated with serum triglycerides. No significant relationship was found between calcium intake and blood/urine oxidative stress indices in both groups. Overall, these data suggest reconsideration of food sources for calcium consumption in management of the blood pressure or blood lipid profiles in both hypertensive and normotensive subjects.

• The Journal of the Korea Contents Association
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• v.7 no.6
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• pp.99-106
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• 2007

This study aimed at finding out news viewership composition of the major 5 broadcasting companies in Korea and analysing the reasons behind their channel choice as we live in so-called the 'multi-channel era'. To figure out demographic features and channel preferences of viewers, the study focused on the 4 watcher types; channel loyalty type, brief news type, central watcher type and peripheral watcher type. The result shows that most viewers fall into the 'brief new type', which means that there is a close relation between life style changes and TV news-contents viewership. Channel preferences were found to differ according to demographic features of viewers like gender, age and professions.'Central Watcher' type was found to prefer KBS1; 'channel loyalty' type, MBC; 'peripheral watcher', SBS; and 'brief news' type, YTN, while only KBS2 has no distinctive viewership of its own.

• Journal of the Korean Society of School Health
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• v.28 no.2
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• pp.56-66
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• 2015

The purpose of this study was to investigate factors associated with coping responses in Korean public high school students. Methods: This study employed a descriptive survey research design. The sample included 263 high school students who responded to a self-report questionnaire. Variables included socio-demographic characteristics, health-related characteristics, academic stress, somatization symptoms, social support, and coping responses. Data were analyzed using descriptive statistics, t-tests, ANOVA, Pearson's correlations, and multiple regressions. Results: Participants, regarding their school life, reported moderate levels of academic stress ($M{\pm}SD=2.3{\pm}0.52$) and somatization symptoms ($M{\pm}SD=2.3{\pm}0.71$), and a relatively high level of social support ($M{\pm}SD=4.2{\pm}0.67$). All the variables were associated with the use of multiple coping responses. Active-cognitive coping ($M{\pm}SD=2.9{\pm}0.68$) was most frequently used, followed by active-behavioral coping ($M{\pm}SD=2.5{\pm}0.56$). and avoidant coping ($M{\pm}SD=2.3{\pm}0.75$). Significant relationships were found among the measured variables: positive relation between academic stress and somatization symptoms, but, negative between academic stress and both somatization symptoms and social support. Students who had higher stress and more somatization symptoms were more likely to use avoidant coping than the others. In multiple regression analysis, while factors associated with each coping response differed, gender appeared to be a significant factor in all methods. Variables included in the final model explained 27% of the variance in avoidant coping (F=11.40, p<.001). Conclusion: Based on the study results, schools should provide tailored educational programs to help high school students reduce multisource stress and somatization symptoms at school and cope with them in more active and effective ways.

• The Journal of the Korea Contents Association
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• v.17 no.1
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• pp.378-386
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• 2017

The aim of this study was to assess the association of metabolic syndrome (MetS) and vitamin D and urine microalbumin (MA) in Korean adults. The study subjects were Korean adults 20 years or older (n=4,948). A covariance test adjusted for covariates was performed for urine MA levels in relation to vitamin D status (vitamin D deficiency, vitamin D insufficiency, vitamin D sufficiency). The key study results were as follows: First, in subjects without MetS, after adjusting for related variables (age, gender, smoking, drinking, regular exercising, wast measurement, body mass index, total cholesterol, triglycerides, high density lipoprotein cholesterol, fasting blood glucose, and glomerular filtration rate), vitamin D levels were inversely associated with Log-MA levels (p<0.001). Second, in subjects with MetS, after adjusting for related variables, vitamin D levels were not associated with Log-MA levels (p=0.892). In conclusion, vitamin D was inversely associated with urine MA levels in Korean adults without MetS, but not in Korean adults with MetS.