1.Notified Incidence of Tuberculosis in Foreign-born Individuals in Jeju Province, Republic of Korea
Korean Journal of Preventive Medicine 2019;52(1):66-70
OBJECTIVES: In the Republic of Korea (ROK), the notified incidence of tuberculosis in foreign-born individuals (NITFBI) has increased recently, as has the rate of multidrug-resistant (MDR) and rifampicin-resistant (RR) tuberculosis in foreigners staying in the ROK. As Jeju Province in ROK has a no-visa entry policy, control programs for NITFBI should be consolidated. The aim was to evaluate the status of NITFBI, with a focus on the distribution of MDR/RR tuberculosis by nationality. METHODS: Data on tuberculosis incidence in individuals born in Jeju Province and in foreign-born individuals were extracted from the Korean Statistical Information Service of Statistics Korea, and the Infectious Disease Surveillance Web Statistics of the Korea Centers for Disease Control and Prevention, respectively. RESULTS: Among all notified incident cases of tuberculosis, the proportion of NITFBI increased from 1.46% in 2011 to 6.84% in 2017. China- and Vietnam-born individuals accounted for the greatest proportion of the 95 cases of NITFBI. Seven cases of MDR/RR tuberculosis were found, all involving patients born in China. CONCLUSIONS: In Jeju Province, ROK, NITFBI might become more common in the near future. Countermeasures for controlling active tuberculosis in immigrants born in high-risk nations for tuberculosis should be prepared in Jeju Province, since it is a popular tourist destination.
Antitubercular Agents
;
Centers for Disease Control and Prevention (U.S.)
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China
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Communicable Diseases
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Disease Management
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Drug Resistance
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Emigrants and Immigrants
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Ethnic Groups
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Humans
;
Incidence
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Information Services
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Internationality
;
Korea
;
Mycobacterium tuberculosis
;
Republic of Korea
;
Tuberculosis
2.A Cross-sectional Study of Cancer Knowledge and Beliefs Among Faith-based Chinese in the USA Versus Taiwan
Korean Journal of Preventive Medicine 2019;52(1):60-65
OBJECTIVES: This study examined cancer knowledge, beliefs, and practice among faith-based Chinese in the USA versus Taiwan to gain better understandings on how environment and culture might play a role for tailored cancer education programs. METHODS: A self-administered survey included a validated 10-item Cancer Screening Belief Scale (CSBS), an 8-item Cancer Screening Knowledge Test (CSKT), and a 14-item cancer Warning Signs Test (CWST) was administered. Participants were recruited from 9 Chinese churches (5 in the USA and 4 in Taiwan). RESULTS: A total of 372 Chinese participated, 50% lived in the USA and 50% in Taiwan. Mean age was 44.31 (standard deviation, 14.74), 60% males, and majority had college education (85%). Taiwan participants scored higher on both CSKT (6.13 vs. 5.52; p < 0.001) and CWST (6.80 vs. 5.38; p < 0.001). Although perceived screening benefits and barriers were similar, Taiwan participants endorsed higher on screening norms (11.67 vs. 10.82; p < 0.001). Taiwan participants also indicated more doctor recommending cancer screenings (42.1% vs. 29.6%; p=0.015), USA participants were more likely to have had annual health exams (65.4% vs. 48.9%; p=0.002). Regression results showed that those resided in the USA were 2.38 times more likely to report annual health exams. Married status (odds ratio [OR], 2.85), college education (OR, 2.38), doctor’s recommendation (OR, 2.87), no family cancer history (OR, 2.47), and those with lower barriers were significant factors on annual health exams. CONCLUSIONS: Taiwan participants scored higher on cancer knowledge and screening norms, while more USA participants reported annual health exams. Taiwan’s universal healthcare might play a role on the different healthcare seeking patterns.
Asian Continental Ancestry Group
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Cross-Sectional Studies
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Delivery of Health Care
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Early Detection of Cancer
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Education
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Humans
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Male
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Mass Screening
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Taiwan
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United States
3.Poor People and Poor Health: Examining the Mediating Effect of Unmet Healthcare Needs in Korea
Youngsoo KIM ; Saerom KIM ; Seungmin JEONG ; Sang Guen CHO ; Seung sik HWANG
Korean Journal of Preventive Medicine 2019;52(1):51-59
OBJECTIVES: The purpose of this study was to estimate the mediating effect of subjective unmet healthcare needs on poor health. The mediating effect of unmet needs on health outcomes was estimated. METHODS: Cross-sectional research method was used to analyze Korea Health Panel data from 2011 to 2015, investigating the mediating effect for each annual dataset and lagged dependent variables. RESULTS: The magnitude of the effect of low income on poor health and the mediating effect of unmet needs were estimated using age, sex, education level, employment status, healthcare insurance status, disability, and chronic disease as control variables and self-rated health as the dependent variable. The mediating effect of unmet needs due to financial reasons was between 14.7% to 32.9% of the total marginal effect, and 7.2% to 18.7% in lagged model. CONCLUSIONS: The fixed-effect logit model demonstrated that the existence of unmet needs raised the likelihood of poor self-rated health. However, only a small proportion of the effects of low income on health was mediated by unmet needs, and the results varied annually. Further studies are necessary to search for ways to explain the varying results in the Korea Health Panel data, as well as to consider a time series analysis of the mediating effect. The results of this study present the clear implication that even though it is crucial to address the unmet needs, but it is not enough to tackle the income related health inequalities.
Chronic Disease
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Dataset
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Delivery of Health Care
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Education
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Employment
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Healthcare Disparities
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Insurance Coverage
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Korea
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Logistic Models
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Methods
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Needs Assessment
;
Negotiating
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Socioeconomic Factors
4.Cancer Patients' Utilization of Tertiary Hospitals in Seoul Before and After the Benefit Expansion Policy
Sanghyun CHO ; Youngs CHANG ; Yoon KIM
Korean Journal of Preventive Medicine 2019;52(1):41-50
OBJECTIVES: The aim of this study was to investigate cancer patients’ utilization of tertiary hospitals in Seoul before and after the benefit expansion policy implemented in 2013. METHODS: This was a before-and-after study using claims data of the Korean National Health Insurance Service from 2011 to 2016. The unit of analysis was inpatient episodes, and inpatient episodes involving a malignant neoplasm (International Classification of Diseases, Tenth Revision codes: C00-C97) were included in this study. The total sample (n=5 565 076) was divided into incident cases and prevalent cases according to medical use due to cancer in prior years. The tertiary hospitals in Seoul were divided into two groups (the five largest hospitals and the other tertiary hospitals in Seoul). RESULTS: The proportions of the incident and prevalent episodes occurring in tertiary hospitals in Seoul were 34.9% and 37.2%, respectively, of which more than 70% occurred in the five largest hospitals in Seoul. Utilization of tertiary hospitals in Seoul was higher for inpatient episodes involving cancer surgery, patients with a higher income, patients living in areas close to Seoul, and patients living in areas without a metropolitan city. The utilization of the five largest hospitals increased by 2 percentage points after the policy went into effect. CONCLUSIONS: The utilization of tertiary hospitals in Seoul was concentrated among the five largest hospitals. Future research is necessary to identify the consequences of this utilization pattern.
Classification
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Health Policy
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Humans
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Inpatients
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National Health Programs
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Seoul
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Tertiary Care Centers
5.Estimating the Survival of Patients With Lung Cancer: What Is the Best Statistical Model?
Siavosh ABEDI ; Ghasem JANBABAEI ; Mahdi AFSHARI ; Mahmood MOOSAZADEH ; Masoumeh RASHIDI ALASHTI ; Akbar HEDAYATIZADEH-OMRAN ; Reza ALIZADEH-NAVAEI ; Ehsan ABEDINI
Korean Journal of Preventive Medicine 2019;52(2):140-144
OBJECTIVES:: Investigating the survival of patients with cancer is vitally necessary for controlling the disease and for assessing treatment methods. This study aimed to compare various statistical models of survival and to determine the survival rate and its related factors among patients suffering from lung cancer. METHODS:: In this retrospective cohort, the cumulative survival rate, median survival time, and factors associated with the survival of lung cancer patients were estimated using Cox, Weibull, exponential, and Gompertz regression models. Kaplan-Meier tables and the log-rank test were also used to analyze the survival of patients in different subgroups. RESULTS:: Of 102 patients with lung cancer, 74.5% were male. During the follow-up period, 80.4% died. The incidence rate of death among patients was estimated as 3.9 (95% confidence [CI], 3.1 to 4.8) per 100 person-months. The 5-year survival rate for all patients, males, females, patients with non-small cell lung carcinoma (NSCLC), and patients with small cell lung carcinoma (SCLC) was 17%, 13%, 29%, 21%, and 0%, respectively. The median survival time for all patients, males, females, those with NSCLC, and those with SCLC was 12.7 months, 12.0 months, 16.0 months, 16.0 months, and 6.0 months, respectively. Multivariate analyses indicated that the hazard ratios (95% CIs) for male sex, age, and SCLC were 0.56 (0.33 to 0.93), 1.03 (1.01 to 1.05), and 2.91 (1.71 to 4.95), respectively. CONCLUSIONS:: Our results showed that the exponential model was the most precise. This model identified age, sex, and type of cancer as factors that predicted survival in patients with lung cancer.
Cohort Studies
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Female
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Follow-Up Studies
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Humans
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Incidence
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Iran
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Lung Neoplasms
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Lung
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Male
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Models, Statistical
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Multivariate Analysis
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Retrospective Studies
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Small Cell Lung Carcinoma
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Survival Rate
6.Validity of Self-reported Hypertension and Factors Related to Discordance Between Self-reported and Objectively Measured Hypertension: Evidence From a Cohort Study in Iran
Farid NAJAFI ; Yahya PASDAR ; Ebrahim SHAKIBA ; Behrooz HAMZEH ; Mitra DARBANDI ; Mehdi MORADINAZAR ; Jafar NAVABI ; Bita ANVARI ; Mohammad Reza SAIDI ; Shahrzad BAZARGAN-HEJAZI
Korean Journal of Preventive Medicine 2019;52(2):131-139
OBJECTIVES: Self-reporting can be used to determine the incidence and prevalence of hypertension (HTN). The present study was conducted to determine the validity of self-reported HTN and to identify factors affecting discordance between self-reported and objectively measured HTN in participants in the Ravansar Non-Communicable Diseases (RaNCD) cohort. METHODS: The RaNCD cohort included permanent residents of Ravansar, Iran aged 35-65 years. Self-reported data were collected before clinical examinations were conducted by well-trained staff members. The gold standard for HTN was anti-hypertensive medication use and blood pressure measurements. The sensitivity, specificity, positive and negative predictive values, and overall accuracy of self-reporting were calculated. Univariate and multivariate logistic regression were used to examine the discordance between self-reported HTN and the gold standard. RESULTS: Of the 10 065 participants in the RaNCD, 4755 (47.4%) were male. The prevalence of HTN was 16.8% based on self-reporting and 15.7% based on medical history and HTN measurements. Of the participants with HTN, 297 (18.8%) had no knowledge of their disease, and 313 (19.9%) had not properly controlled their HTN despite receiving treatment. The sensitivity, specificity, and kappa for self-reported HTN were 75.5%, 96.4%, and 73.4%, respectively. False positives became more likely with age, body mass index (BMI), low socioeconomic status, and female sex, whereas false negatives became more likely with age, BMI, high socioeconomic status, smoking, and urban residency. CONCLUSIONS: The sensitivity and specificity of self-reported HTN were acceptable, suggesting that this method can be used for public health initiatives in the absence of countrywide HTN control and detection programs.
Blood Pressure
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Body Mass Index
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Cohort Studies
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Female
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Humans
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Hypertension
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Incidence
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Internship and Residency
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Iran
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Logistic Models
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Male
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Methods
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Prevalence
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Public Health
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Self Report
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Sensitivity and Specificity
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Smoke
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Smoking
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Social Class
7.Impact of Changes in Maternal Age and Parity Distribution on the Increasing Trends in the Low Birth Weight and Very Low Birth Weight Rates in South Korea, 2005-2015
Korean Journal of Preventive Medicine 2019;52(2):123-130
OBJECTIVES: The aim of this study was to evaluate the impact of shifts in maternal age and parity on the increasing trends in the low birth weight (LBW) and very low birth weight (VLBW) rates from 2005 to 2015 in South Korea. METHODS: Data from 4 993 041 live births registered with Statistics Korea during the period between 2005 and 2015 were analyzed. Applying a modified standardization method, we partitioned the total increment in the LBW and VLBW rates into (1) the increase in the LBW and VLBW rates due to changes in the maternal age and parity distribution (AP-dis) and (2) the increase due to changes in the age-specific and parity-specific rates (AP-spe) of LBW and VLBW for singleton and multiple births, respectively. RESULTS: During the study period, the total increment in the LBW and VLBW rates was 1.43%p and 0.25%p, respectively. Among singleton births, changes in the AP-dis accounted for 79% (0.34%p) and 50% (0.06%p) of the total increment in the LBW and VLBW rates, respectively. Meanwhile, among multiple births, changes in the AP-dis did not contribute to the increase in the LBW and VLBW rates, with 100% of the increase in the LBW (1.00%p) and VLBW (0.13%p) rates being attributed to changes in the AP-spe. CONCLUSIONS: This study demonstrated that shifts in maternal age and parity were prominent contributors to the increase in the LBW and VLBW rates among singleton births between 2005 and 2015 in South Korea.
Female
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Humans
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Infant
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Infant, Low Birth Weight
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Infant, Newborn
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Infant, Very Low Birth Weight
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Korea
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Live Birth
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Maternal Age
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Methods
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Multiple Birth Offspring
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Parity
;
Parturition
8.Knowledge, Attitudes, and Practices Regarding Tuberculosis in Timor-Leste: Results From the Demographic and Health Survey 2016
Korean Journal of Preventive Medicine 2019;52(2):115-122
OBJECTIVES: The aim of this study was to assess knowledge, attitudes, and practices regarding tuberculosis (TB) in the general population in Timor-Leste. METHODS: In the nationally representative cross-sectional 2016 Timor-Leste Demographic and Health Survey, 4622 men (aged 15-59 years) and 12 607 women (aged 15-49 years) were randomly selected using stratified multistage sampling and interviewed. RESULTS: Overall, 66.9% of men and 62.8% of women were aware of TB, 4.4% of men and 12.6% of women had TB courtesy stigma, and 83.3% of men and 88.6% of women reported intention to receive TB treatment. The mean±standard deviation overall TB knowledge score was 3.9±2.0 (out of 8) among men and 3.0±1.8 among women. In a multivariable linear regression analysis, among both men and women, older age, higher education, rural residence, and sources of TB information (family/friends, school/workplace, health care provider, Internet, television, and newspaper) were associated with higher TB knowledge scores. In addition, among women, higher wealth status and having heard about TB from the radio were associated with higher TB knowledge scores. Negative associations with TB courtesy stigma were found for urban residence and having heard about TB from family or friends among men, and for older age, higher TB knowledge, and TB information sources (family/friends and school/workplace) among women. Among both men and women, higher TB knowledge scores and having heard of TB from a health care provider were associated with intention to receive TB treatment. CONCLUSIONS: This study identified socio-demographic risk factors for deficiences in population-based TB knowledge in Timor-Leste; these findings should be considered when designing TB communication, prevention, and control strategies.
Education
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Female
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Friends
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Health Personnel
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Health Surveys
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Humans
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Intention
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Internet
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Linear Models
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Male
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Risk Factors
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Television
;
Timor-Leste
;
Tuberculosis
9.The Effects of Socio-demographic Characteristics on Indonesian Women's Knowledge of HIV/AIDS: A Cross-sectional Study
Putu Erma PRADNYANI ; Arief WIBOWO ; MAHMUDAH
Korean Journal of Preventive Medicine 2019;52(2):109-114
OBJECTIVES: The purpose of this study was to characterize Indonesian women’s knowledge of HIV/AIDS and to investigate the effects of socio-demographic characteristics thereupon with the goal of supporting the prevention and early detection of HIV/AIDS. METHODS: This cross-sectional study was conducted using secondary data from the standard Indonesian Demographic and Health Survey (IDHS) in 2012. A total of 34 984 subjects ranged in age from 15 years to 49 years. Data were analyzed using the chi-square test and logistic regression to identify the effects of socio-demographic characteristics on Indonesian women’s knowledge of HIV/AIDS. RESULTS: All socio-demographic characteristics except marital status were related to knowledge of HIV/AIDS among Indonesian women in the univariate analysis (p<0.05). Multivariate analysis revealed that only age group, education level, location of residence, and wealth index were related to Indonesian women’s knowledge of HIV/AIDS (p<0.05). CONCLUSIONS: Indonesian women’s insufficient knowledge related to HIV/AIDS shows that the provision of accurate and comprehensive information related to HIV/AIDS are components of prevention and control interventions that should be improved. With greater knowledge, women are expected to be more likely to determine their own and their partners’ human immunodeficiency virus status and to take appropriate preventive steps.
Communicable Diseases
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Cross-Sectional Studies
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Education
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Female
;
Health Surveys
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HIV
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Humans
;
Indonesia
;
Logistic Models
;
Marital Status
;
Multivariate Analysis
10.Objectively Measured Physical Activity of Vietnamese Adults With Type 2 Diabetes: Opportunities to Intervene
Vuong Van DO ; Jonine JANCEY ; Ngoc Minh PHAM ; Chung Thanh NGUYEN ; Minh Van HOANG ; Andy H. LEE
Korean Journal of Preventive Medicine 2019;52(2):101-108
OBJECTIVES: To objectively determine and compare the physical activity (PA) levels of adults newly diagnosed with type 2 diabetes (T2D) and adults without T2D in Vietnam using an accelerometer. METHODS: A total of 120 participants with newly diagnosed T2D and 120 adults without T2D were recruited from a large hospital in Hanoi, the capital city of Vietnam. All participants wore an ActiGraph GT3X accelerometer for at least 5 days, including 1 weekend day. Freedson cut-off points were used to estimate different intensities of PA. In addition, comparisons between groups were made with respect to achieving the World Health Organization (WHO) and International Diabetes Federation (IDF) recommended PA guidelines. RESULTS: Men with T2D had significantly lower levels of PA than men without T2D. The respective multivariable-adjusted mean values of daily step count, daily light-intensity, moderate-intensity, and moderate-to-vigorous-intensity PA were approximately 14%, 19%, and 22% lower in the men with T2D than in their non-T2D counterparts. However, women with T2D accumulated a greater number of steps per day than women without T2D. Only 59.2% of the adults with T2D met the minimum recommended level of PA (WHO and IDF), compared to 74.2% of adults without T2D (p<0.05). After adjusting for potential confounders, participants with T2D experienced 50.0% significantly lower odds of achieving PA recommendations. CONCLUSIONS: Vietnamese men with T2D were less physically active than those without T2D, and adults with T2D were less likely to meet PA guidelines. The results suggest a need for integrating PA into the self-management of this chronic condition.
Adult
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Asian Continental Ancestry Group
;
Female
;
Humans
;
Male
;
Motor Activity
;
Self Care
;
Vietnam
;
World Health Organization

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