• Korean Journal of Family Medicine
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• v.39 no.6
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• pp.325-332
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• 2018

Background: Hypertension is a major contributor to the global disease burden of cardiovascular and cerebrovascular disease. The aim of this study was to determine demographic and clinical factors associated with adherence to antihypertensive medication. Methods: From August 2012 to February 2015, we recruited 1,523 Korean patients with hypertension who visited family physicians. The study was conducted in 24 facilities located in urban and metropolitan areas. Of these facilities, two were primary care clinics and 22 were level 2 or 3 hospitals. Adherence was assessed using the pill count method; a cut-off value of 80% was used as the criterion for good adherence. Sociodemographic and lifestyle factors were compared between the adherent and nonadherent groups using the chi-square test for categorical variables and t-test for continuous variables. Binary logistic regression analysis was performed with medication adherence as the outcome variable. Results: Of the 1,523 patients, 1,245 (81.7%) showed good adherence to antihypertensive medication. In the multivariate logistic analysis, age ${\geq}65$ years, exercise, treatment in a metropolitan-located hospital, being on ${\geq}2$ classes of antihypertensive medication and concomitant medication for diabetes, and a family history of hypertension or cardiovascular diseases were associated with good adherence. Patients who had a habit of high salt intake were less adherent to medication. Conclusion: Multiple classes of antihypertensive medications, concomitant medication, and exercise were associated with good adherence to antihypertensive medication, and high salt intake was associated with poor adherence to antihypertensive medication. These factors should be considered to improve hypertension control.

• Journal of Korean Academy of Nursing
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• v.51 no.3
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• pp.280-293
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• 2021

Purpose: This study aimed to identify the risk factors for diabetic foot ulceration (DFU) to develop and evaluate the performance of a DFU prediction model and nomogram among people with diabetes mellitus (DM). Methods: This unmatched case-control study was conducted with 379 adult patients (118 patients with DM and 261 controls) from four general hospitals in South Korea. Data were collected through a structured questionnaire, foot examination, and review of patients' electronic health records. Multiple logistic regression analysis was performed to build the DFU prediction model and nomogram. Further, their performance was analyzed using the Lemeshow-Hosmer test, concordance statistic (C-statistic), and sensitivity/specificity analyses in training and test samples. Results: The prediction model was based on risk factors including previous foot ulcer or amputation, peripheral vascular disease, peripheral neuropathy, current smoking, and chronic kidney disease. The calibration of the DFU nomogram was appropriate (χ² = 5.85, p = .321). The C-statistic of the DFU nomogram was .95 (95% confidence interval .93~.97) for both the training and test samples. For clinical usefulness, the sensitivity and specificity obtained were 88.5% and 85.7%, respectively at 110 points in the training sample. The performance of the nomogram was better in male patients or those having DM for more than 10 years. Conclusion: The nomogram of the DFU prediction model shows good performance, and is thereby recommended for monitoring the risk of DFU and preventing the occurrence of DFU in people with DM.

• The Korean Journal of Applied Statistics
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• v.34 no.1
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• pp.57-74
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• 2021

The proliferation of smart devices (such as smart phones and tablet PCs) has led to a marked increase in the use of mobile-based internet. As a result, the influence of the mobile internet has become important to make opinions on social issues. This study explores the effects of mobile internet news users' characteristics on formation of opinions about major political, economic and social issues. We used the data from the media audience awareness survey by the Korean Press Foundation in 2016 and 2017 in this analysis. The characteristics of the news users are gender, age, education, income, news usage days, news usage hours, media application usage days, news gathering application usage days, portal usage days, and media official website usage days. These characteristics are known as possible explanatory variables for the mobile internet news users. Multiple logistic regressions were done with interpretation to know which covariates affect on formation of major opinion.

• Health Policy and Management
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• v.19 no.2
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• pp.85-110
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• 2009

The aim of this study was to examine whether health status is different according to employment status and income level in wage-earners. We analyzed wage-earners of 2199 men and 1194 women aged 30-64 years, using data from the 2006 Korean Labor and Income Panel Study(KLIPS). The difference of health status according to employment status and income level was compared with the multiple logistic regression and the standardized concentration index of ill-health. The risk of ill-health was high when waged-earners had low income. The same is true for poor employment status when their employment status was unstable as in manual laborers, irregular workers, temporary, daily workers or part-time workers. furthermore, the wage-earners with lower income and a relatively disadvantageous employment status showed the lowest health status compared to other groups. Ill-health was relatively more concentrated in lower income group and poor employment status. This study identified the existence of health inequality among various employment status of wage-earners. It is suggested that policies that deal with the inequality in social class may have an important impact on the health of the population.

• The Korean Journal of Rehabilitation Nursing
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• v.15 no.2
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• pp.83-90
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• 2012

Purpose: The purpose of this study was to investigate the factors associated with atopic dermatitis in Korean adults. Methods: The data were obtained from the Korean National Health and Nutrition Survey on 2008. Subjects of this study were 7,280 adults aged older than 18 years. The data were analyzed for demographic characteristics, health status, alcohol drinking, smoking, hypertension, hyperlipidemia, asthma, chronic sinusitis, rhinitis, stress, depression, and suicidal ideation between atopy group and non-atopy group. Results: Among 7,280 subjects, 2.9% of Korean adults had a diagnosis of atopic dermatitis from doctor. Multiple logistic regression identified that the presence of atopic dermatitis was associated with marital status (OR=2.66, CI 1.84~3.86, p<.001), rhinitis (OR=1.52, CI 1.04~2.22, p = .030), and depression (OR=1.89, CI 1.04~3.41, p = .036). Conclusion: Based on these results, marital status, rhinitis, and depression should be considered in addressing individuals with atopic dermatitis. And the other factors contributing to atopic dermatitis need to be specifically identified.

• Journal of Korean Academy of Nursing
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• v.38 no.1
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• pp.92-100
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• 2008

Purpose: The aim of this study was to estimate the prevalence of urinary incontinence among nursing home residents and to identify the factors associated with this condition. Method: The data were collected from 618 subjects (146 males and 472 females; mean age $79.9{\pm}8.4$ yr; range 65-102 yr) of 30 nursing homes in Seoul, Gyeonggi-do and Gangwon-do in this cross-sectional study. The data were analyzed by chi-square test, t-test, and multiple logistic regression by using the SPSS/PC ver 12.0 program. Results: The prevalence of UI was 64.7% (64.6% in women; 65.1% in men). After adjustment for each of the variables considered in this study, six potential factors were strongly associated with UI: activities of daily living, comorbidity, age, cognition, specialty of the facility, and a bladder training program. Conclusion: Our finding suggests that it is necessary to develop a program for promotion of activities of daily living and to provide a bladder training program to prevent urinary incontinence among nursing home residents.

• Journal of Korean Academy of Nursing
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• v.44 no.6
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• pp.708-716
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• 2014

Purpose: The purpose of this study was to evaluate the nutritional status of low-income urban elders by diversified ways, and to analyze the risk factors for malnutrition. Methods: The participants in this study were 183 low-income elders registered at a visiting healthcare facility in a public health center. Data were collected using anthropometric measurements, and a questionnaire survey. For data analysis, descriptive statistics, ${\chi}^2$-test, t-test, Fisher's exact test, multiple logistic regression analysis were performed using SPSS 20.0. Results: Regarding the nutritional status of low-income elders as measured by the Mini Nutritional Assessment (MNA), 10.4% of the elders were classified as malnourished; 57.4% as at high risk for malnutrition; and 32.2% as having normal nutrition levels. The main factors affecting malnutrition for low-income elders were loss of appetite (OR=3.34, 95% CI: 1.16~9.56) and difficulties in meal preparation (OR=2.35, 95% CI: 1.13~4.88). Conclusion: In order to effectively improve nutrition in low-income urban elders, it is necessary to develop individual intervention strategies to manage factors that increase the risk of malnutrition and to use systematic approach strategies in local communities in terms of a nutrition support system.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.11
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• pp.5879-5882
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• 2012

Breast cancer is the leading cause of cancer deaths among women worldwide, including Thailand. In the present study, the differential mRNA expression of SVEP1, LPHN3, KLB, ITGA7, SEMA3G, TNS1 and MMP13 genes was examined in breast cancer using quantitative real-time reverse transcription polymerase chain reaction (QRT-PCR). Among these genes, increased LPHN3 and MMP13 mRNA expression levels correlated with axillary-node metastasis (P=0.02). Multiple logistic regression analysis revealed that LPHN3 and MMP13 mRNA expression is significantly associated with axillary node status in breast cancer (P=0.04).

• Research in Community and Public Health Nursing
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• v.26 no.2
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• pp.140-149
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• 2015

Purpose: This study was conducted to identify activities of daily living, depression and self-rated health and related factors for Korean Elderly. Methods: Data from the survey for the Korean Longitudinal Study of Aging in 2010 were used. The data were analyzed using frequencies, weighted proportions, and hierarchical multiple logistic regression. Results: Significant difference was observed in health status induced by socioeconomic status between men and women, but not among age groups. Socioeconomic status was strongly associated with self-rated health among male and female elders. Being unschooled and low net family asset were significantly related with dependency in activities of daily living and depressive symptoms among men. Only low net family asset was significantly related with depressive symptoms among women. Family support provides a slight decrease to the negative relationship between socioeconomic status and health status, especially depressive symptoms. Conclusion: This study suggests that interventions to reduce health inequalities should target elderly with lower socioeconomic status and with poor family support, using a gender-specific approach.

• Research in Community and Public Health Nursing
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• v.26 no.2
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• pp.169-177
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• 2015

Purpose: Previous studies focused on the negative effects of Internet use such as obesity, depression, and addiction. However, few studies investigated whether the Internet use for an appropriate time has positive effects on adolescents' health. Thus, the purpose of the study was to examine the dose-response relationship between Internet use for non-academic purposes (NAP) and happiness/stress in adolescents. Methods: This study used data from the 2013 Korea Youth Risk Behavior Web-Based Survey. A total of 72,435 adolescents were included. Rao-Scott ${\chi}^2$ and multiple logistic regression were conducted. To test the dose-response relationship, this study examined how happiness/stress changed with increase in the time of Internet use for NAP. Results: After controlling for general characteristics, the odds ratios for being unhappy and stressful were lowest in adolescents using the Internet for NAP for more than 0 hour and less than an hour a day. Interestingly, students who did not use the Internet for NAP had a significantly higher risk of being unhappy/stressful than those using for more than 0 hour and less than an hour a day. Conclusion: Internet use for NAP for more than 0 hour and less than an hour a day has positive effects on happiness/stress in adolescents.