• Journal of Cardiovascular Imaging
• /
• 제31권4호
• /
• pp.169-177
• /
• 2023

BACKGROUND: Acute worsening of cardiac function frequently leads to kidney dysfunction. This study aimed to identify clinical and imaging parameters associated with impaired kidney function in patients with acute decompensated heart failure with reduced ejection fraction (HFrEF). METHODS: Data from 131 patients hospitalized with acute decompensated HFrEF (left ventricular ejection fraction, < 40%) were analyzed. Patients were divided into two groups according to the glomerular filtration rate (GFR) at admission (those with preserved kidney function [GFR ≥ 60 mL/min/1.73 m²] and those with reduced kidney function [GFR < 60 mL/min/1.73 m²]). Various echocardiographic parameters and perirenal fat thicknesses were assessed by computed tomography. RESULTS: There were 71 patients with preserved kidney function and 60 patients with reduced kidney function. Increased age (odds ratio [OR], 1.07; 95% confidence interval [CI], 1.04-1.12; p = 0.005), increased log N-terminal pro b-type natriuretic peptide (OR, 1.74; 95% CI, 1.14-2.66; p = 0.010), and increased perirenal fat thickness (OR, 1.19; 95% CI, 1.10-1.29; p < 0.001) were independently associated with reduced kidney function, even after adjusting for variable clinical and echocardiographic parameters. The optimal average perirenal fat thickness cut-off value of > 12 mm had a sensitivity of 55% and specificity of 83% for kidney dysfunction prediction. CONCLUSIONS: Thick perirenal fat was independently associated with impaired kidney function in patients hospitalized for acute decompensated HFrEF. Measurement of perirenal fat thickness may be a promising imaging marker for the detection of HFrEF patients who are more susceptible to kidney dysfunction.

• 한국콘텐츠학회논문지
• /
• 제15권8호
• /
• pp.345-355
• /
• 2015

본 연구는 장애대학생의 지각된 낙인과 우울이 대학생활을 방해한다는 가설을 전제로 사회적지지가 조절효과를 가지는지를 실증하고자 계획되었다. 이를 위해 부산 경남 일부지역의 4년제 대학교에 재학 중인 장애대학생 108명(남학생 61명, 여학생 47명)을 대상으로 연구한 결과는 다음과 같다. 인구사회학적 변인중에서 성별과 학년은 장애대학생의 대학생활적응에 영향을 미치는 유의한 변수였고, 장애대학생의 지각된 낙인과 우울은 장애대학생의 대학생활적응에 영향을 미치는 유의한 변수임이 드러났다. 특히 우울의 영향력이 상대적으로 매우 우세한 것으로 파악되었다. 사회적지지 또한 장애대학생의 대학생활적응에 정적(+) 영향을 미치는 것으로 확인되었으며, 지각된 낙인과 우울이 대학생활적응에 미치는 관계에서 조절효과를 가지는 것으로 증명되었다. 본 연구는 장애대학생의 대학생활적응력 향상을 위해서는 여러 접근들 못지않게 장애대학생을 둘러싼 사회적지지에 대한 관심 역시 중요하다는 것을 입증하고 있다. 이러한 연구결과를 토대로 실천적 함의를 제시하였다.

• 펄프종이기술
• /
• 제43권3호
• /
• pp.35-42
• /
• 2011

In this study, ground calcium carbonate (GCC) was modified by Layer-by-Layer (LbL) multilayering with polyelectrolytes. Cationic polyacrylamide (C-PAM) and poly sodium 4-styrene sulfonate (PSS) were used as cationic and anionic polyelectrolytes to modify GCC. The characteristics of the modified GCC were examined in terms of zeta potential and particle size with the addition level of polyelectrolyte and layer number. The GCC could form an assembly of cationic and anionic polyelectrolytes through consecutive adsorption process. The zeta potential of the modified GCC moved toward the cationicity and reached the plateau with the increase of the addition level of C-PAM. With layering of anionic PSS, the GCC had the negative charge. The particle size was dependent on the zeta potential. It was also observed by optical microscope. As the PSS was in the presence of the outermost layer, the GCC showed the better dispersability. It indicated that the surface charge and particle size can be controlled by adjusting the addition level of polyelectrolyte and the layer number.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• 제22권3호
• /
• pp.233-241
• /
• 2019

Purpose: Vitamin D deficiency is a condition widespread throughout the world. Recent studies have suggested that vitamin D deficiency was associated with obesity and metabolic syndrome. The purpose of the study was to examine the relationship between vitamin D deficiency and nonalcoholic fatty liver disease (NAFLD) in adolescents. Methods: The data were obtained from the Korean National Health and Nutrition Examination Survey from 2008-2014. A total of 3,878 adolescents were included in the study. Vitamin D deficiency was defined as a 25-hydroxyvitamin D concentration <20 ng/mL and suspected NAFLD was defined as an alanine transaminase concentration >30 U/L. Results: Vitamin D deficiency was noted in 78.9% of the studied population. Age, body mass index, waist circumference, and blood pressure, glucose, cholesterol, and triglyceride levels were significantly higher in adolescents with suspected NAFLD than in adolescents without suspected NAFLD, while the mean vitamin D level was significantly lower in adolescents with suspected NAFLD. The multivariate-adjusted odds of suspected NAFLD were higher with increased age, male gender, obesity, and metabolic syndrome. Individuals with vitamin D deficiency were at higher risk of suspected NAFLD (odds ratio, 1.77; 95% confidence interval, 1.07-2.95) after adjusting for age, gender, obesity, and metabolic syndrome. Conclusion: Vitamin D deficiency was associated with suspected NAFLD, independent of obesity and metabolic syndrome, in adolescents.

• 한국보건간호학회지
• /
• 제34권1호
• /
• pp.35-47
• /
• 2020

Objectives: This study investigated the effect of physical activity of adult Korean males on the prevalence of diabetes mellitus. Methods: This cross-sectional study used the raw data from the 2017 Community Health Survey. The subjects of this study were 74,494 men aged 19-64 years old. The data was analyzed applying the complex sampling design and using SPSS 23.0 Program. Descriptive statistics, Rao-Scott Chi-square tests and multiple logistic regression analysis were all performed. Results: The prevalence of diabetes mellitus was 6.4%. The walking activity was 58.5% and the over moderate intensity physical activity was 27.5%. After adjusting for age, marital status, educational level, household monthly income, drinking and smoking status, and BMI, those subjects without moderate intensity physical activity had a 1.14 times higher prevalence of diabetes mellitus (95% CI = 1.05-1.24) than those men with moderate intensity physical activity. Conclusion: In order to decrease the prevalence of diabetes mellitus among adult men, regular physical activities over a moderate intensity level should be emphasized and encouraged in daily life.

• 한국치위생학회지
• /
• 제16권1호
• /
• pp.111-120
• /
• 2016

Objectives: The aim of this study was to investigate the association between self-esteem and temporomandibular disorder among high school students. Methods: A self-reported questionnaire was completed by 584 high school students in Gyeongnam. The questionnaire consisted of socio-demographic profile, anxiety, self-esteem, oral parafunctional habits, and temporomanibular disorder. Data were analyzed using SPSS 19.0 program. Results: In univariate analysis, there were significant differences between self-esteem and temporomandibular disorder(p<0.05). The self-esteem was negatively correlated with parafunctional habits(r=-0.253, p<0.001) and temporomandibular disorder(r=-0.221, p<0.001). In multivariate analysis, self-esteem was significantly associated with temporomandibular disorder(${\beta}=-0.119$, p=0.025) after adjusting for socio-demographic characteristics and anxiety. Conclusions: The self-esteem negatively influenced on temporomandibular disorder in the high school students.

• Safety and Health at Work
• /
• 제13권1호
• /
• pp.17-22
• /
• 2022

Background: This study aimed to identify work-related risk factors, including long working hours and night/shift work, for unmet health care need using data of a representative panel of Korean adults. Methods: Associations between work-related factors and unmet health care need were analyzed using data of 3,440 participants (10,320 observations) from the 2011-2013 Korean Health Panel Study. A generalized estimating equation was used for the analysis of repeated measures. Results: The prevalence of unmet health care was 16.6%. After adjusting sex, age, socioeconomic status, work characteristics, and working more than 60 hours per week (odds ratio [OR]: 1.43, 95% confidence interval [CI]: 1.23-1.65) or 50-59 hours per week (OR: 1.26, 95% CI: 1.08-1.46) instead of 40-49 hours per week and night/shift work (OR: 1.27, 95% CI: 1.06-1.51) were associated with unmet health care need. Conclusion: Long working hours and night/shift work are risk factors for unmet health care need among the Korean working population.

• 여성건강간호학회지
• /
• 제28권1호
• /
• pp.8-17
• /
• 2022

Purpose: Although the term "transition to motherhood" is commonly used in research, the concept is not clear. This study, hence, was conducted to clarify the concept of "transition to motherhood." Methods: The concept analysis framework developed by Walker and Avant is used to analyze the concept of transition to motherhood. Results: Transition to motherhood is defined as the physical, psychological, social, and relational (mother-baby relationship/interpersonal relationship) changes that happen to a woman after pregnancy and delivery of a baby. The attributes of the transition to motherhood include: 1) adapting to physical changes after pregnancy and childbirth; 2) experiencing various psychological changes; 3) changing of her social perception from being a woman to someone's mother; and 4) forming and developing a relationship with the newborn, adjusting priorities, and redefining the relationship between family and others. Meeting the newborn is regarded as an antecedent of the transition to motherhood. Redefining identity and physical image, ensuring mother's well-being, maternal attachment, and confidence in the maternal role are regarded as consequences of the transition to motherhood. The concept was clarified by the presentation of model, borderline, and contrary cases. Conclusion: The significance of this study lies in the clarification of the concept of transition to motherhood and defining its attributes. It is recommended that tools be developed to measure transition to motherhood based on the results of this study. Furthermore, nurses and midwives can use study findings to better understand the concept of transition to motherhood in providing care and support to mothers who experience it.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• 제21권1호
• /
• pp.23-30
• /
• 2010

Objectives ： This study aimed to examine the association between norepinephrine transporter gene (SLC6A2) polymorphisms and attention-deficit hyperactivity disorder (ADHD) and to examine the relationship between the genotypes and allele variants of SLC6A2 and results of the Korean version of the parent ADHD rating scale (K-ARS). Methods ： We examined the association between ADHD and norepinephrine transporter gene polymorphism using DNA from 137 Korean children with ADHD and 120 normal controls. We compared the genotype distributions and allele frequencies of SLC6A2 polymorphism between the control group and the ADHD group. Then, we correlated the children's K-ARS mean totals, inattention scores, and hyperactivity/impulsivity scores with the genotypes and alleles for each SLC6A2 polymorphism. Results ： There were no significant differences in genotype and allele distribution for each SLC6A2 polymorphism, as shown by the Chi-square test (p>.01). There was a trend toward a difference in allele frequency in rs 5568, but it was not statistically significant after adjusting for multiple comparisons (p=.048). Also, there were no significant differences in K-ARS scores according to the genotypes and alleles for the SLC6A2 polymorphisms. Conclusion ： Our study found no significant evidence of an association between SLC6A2 polymorphisms and ADHD.

• Journal of Periodontal and Implant Science
• /
• 제49권3호
• /
• pp.158-170
• /
• 2019

Purpose: This study investigated the association between health status and tooth loss based on data from the National Health Insurance Service-Health Examinee Cohort in 2002-2015. Methods: Multivariate Cox proportional hazards regression analyses were applied to a longitudinal retrospective database, which was updated and newly released in 2018, to assess the association between health status and tooth loss while adjusting for potential confounders among sociodemographic and economic factors (sex, age, household income, insurance, and presence of disability), general and oral health status (body mass index [BMI], smoking and drinking status, periodic dental visits and scaling, and brushing before sleep), and comorbid disease (hypertension, diabetes mellitus [DM], and Charlson comorbidity index [CCI]). Results: Among 514,866 participants from a South Korean population, 234,247 (45.5%) participants satisfying the inclusion criteria were analyzed. In the adjusted multivariate analysis, sex, age, household income, insurance, presence of disability, BMI, smoking and drinking status, periodic scaling, tooth brushing before sleep, DM, and CCI showed statistically significant associations with the loss of at least 1 tooth. The risk of experiencing a loss of ${\geq}4$ teeth was associated with an increase in age (in those 50-59 years of age: hazard ratio [HR], 1.98; 95% confidence interval [CI], 1.93-2.03; in those 60-69 years of age: HR, 2.93; 95% CI, 2.85-3.02; and in those 70-79 years of age: HR, 2.93; 95%, CI 2.81-3.05), smoking (HR, 1.69; 95% CI, 1.65-1.73), and DM (HR, 1.43; 95% CI, 1.38-1.48). Conclusions: The results of this study showed that the risk of experiencing tooth loss was related to multiple determinants. DM and smoking were especially significantly associated with tooth loss.