Ying-Chih Chuang

Taipei Medical University | TMU · School of Public Health

Indonesia faces the double burdens of childhood obesity and malnutrition. A family’s socioeconomic status has been suggested to be one of the most influential factors contributing to childhood nutritional problems. This study aimed to: 1) identify the distinct trajectories of family economics; and 2) assess whether a family’s economic trajectory in...

Introduction: Children in developing countries, including Indonesia, have an increased prevalence of overweight and obesity. Parental socioeconomic status is one of the substantial risk factors. Objectives: To examine the presence of distinct developmental trajectories of BMI z-score in Indonesian children from age 5 to age 19 and assess whether th...

Background The use of contraceptives is an essential public health concept that improves overall safe motherhood and infant health. Women empowerment has been reported to influence health behaviors in women. With recent efforts to increase access to contraceptive methods, uptake of the same remains a challenge in Cambodia. There are limited studies...

Objectives The aim of this study was to determine whether gender impacts potential associations between social relationships, sociodemographic, health and behavioural factors with resilience among older Taiwanese adults. Methods High and low resilience of older adults was determined based on the median value of the Friborg’s Resilience Scale. An i...

Background: Identifying risk factors of incomplete immunization among children is crucial to developing relevant policies to improve immunization coverage. In this study, we investigated factors associated with incomplete immunization among children in Indonesia and elucidated differences in risk factors between urban and rural areas. Methods: T...

Background Signs associated with the onset of disability can be useful in disability projection and have significant implications in elderly care policy. Objective To explored the associations between biometric screening indicators and declines in activities of daily life (ADLs) functioning among the Indonesian elderly. Methods This is a prospect...

This study attempted to examine individual- and community-level factors that contribute to pregnancy-related health behaviors among Indonesian women. This study used representative nationwide survey samples from the Indonesian Demographic Health Survey in the years 2007 (N = 15 193), 2012 (N = 14 431), and 2017 (N = 14 797). Generalized linear mixe...

The province of Nusa Tenggara Timur (NTT) in the eastern part of Indonesia is known for high maternal mortality ratios (MMRs) and neonatal mortality eates (NMRs). Sister Hospital is a multicenter program, which aims to lower MMRs and NMRs in the deprived areas of Indonesia by providing comprehensive emergency services for maternal and newborn care....

Background Approximately 45% of all child deaths are associated with malnutrition in sub-Saharan Africa. However, information on the geographical variations of child malnutrition in Burkina Faso is limited. This study examined the geographical distribution and the community characteristics associated with child malnutrition in Burkina Faso using sp...

Indonesia has one of the highest maternal mortality rates among Southeast Asia countries. Mothers’ pregnancy-related behaviors were proven to be the major determinants of maternal mortality. This study attempted to measure individual- and community-level factors that contribute to pregnancy-related health behaviors among Indonesian women. This stud...

Background: Approximately 45% of all children's deaths are associated with malnutrition, and sub-Saharan Africa is hardest hit by this phenomenon. However, information on geographical variations of malnutrition in developing countries is limited. This study examined the geographical distribution and community characteristics associated with child...

Background: Despite malaria control programmes having successfully increased the number of households owning insecticide-treated nets (ITNs) in Malawi, the population of people with ITN access but still not using them fluctuated from 13% in 2010, 5% in 2012 and then 12% in 2015. This study aimed to compare the rate and factors associated with ITN...

Lack of knowledge regarding brucellosis may lead to highly risky practices. Among herders in Mongolia, little research was conducted assessing the extent of knowledge related to brucellosis, the type of preventive behaviours that were practiced, and the relationship between knowledge and behaviour regarding brucellosis. A cross‐sectional study was...

Geographical variations in teen birth rates (TBR) still persist despite controlling for contextual factors. The aim of this research was to identify spatial patterns of TBR in Taiwan and to examine spatial relationships among different contextual factors. Using townships as the unit of analysis (N=359), this research used social and demographic var...

Background: Elderly people tend to have greater healthcare utilization because of their health status. However, with the 4th largest population in the world, little is known concerning the use of services among the Indonesian elderly. Hence, this study aimed to identify factors related to the use of outpatient services among the Indonesian elderly...

Allergic diseases are prevalent worldwide and may result from exposure to various substances. Exposure to ambient bioaerosols is a potential risk factor for allergic diseases; however, accurate exposure assessment is challenging due to the limited number of outdoor monitoring stations. In this study, the relationships between ambient bioaerosol exp...

Background: Undernutrition is a major global public health problem among children under the age of 5 years. We aimed to untangle the effects of a wide range of individual- and community-level socioeconomic factors on the risks of childhood undernutrition in Malawi. Methods: We analyzed 6384 women-infant pairs from the 2004 and 2010 Malawi Demogr...

Background Studies on the determinants of cervical cancer screening in sub-Saharan Africa have focused mostly on individual-level characteristics of cervical cancer screening. Therefore, in this study, we included both individual- and community-level indicators to examine the determinants of cervical cancer screening among Kenyan women. Methods We...

Background Most previous studies on healthcare service utilization in low-income countries have not used a multilevel study design to address the importance of community-level women’s autonomy. We assessed whether women’s autonomy, measured at both individual and community levels, is associated with maternal healthcare service utilization in Ethiop...

The Democratic Republic of the Congo (DRC) has one of the highest rates of violence against women in the world; however, few studies have focused on this issue. In this study, we assessed the interrelationship among intimate partner violence (IPV), unintended pregnancy, pregnancy loss, and other sociodemographic factors in the DRC. Our analyses wer...

Background: The purpose of this article was to examine individual- and community-level factors associated with childhood anemia, severe anemia, and hemoglobin (Hb) concentration in Malawi. Methods: Using data from the 2010 Malawi demographic and health survey (MDHS), the multilevel regression models were constructed to analyze 2597 children aged...

Background: Empirical evidence regarding the relationship between childhood immunization and individual- and community-level factors in low-income countries has received little attention. We compared the trends and the effects of a wide range of individual- and community-level socioeconomic factors on the likelihood of a child being immunized betw...

Allergic skin diseases may result from various types of chemical and biological allergens. This study investigated the association between ambient bioaerosol exposure and allergic skin diseases by using the exposure data obtained from land use regression models and interpolated data. Data on daily average outpatient visits for atopic dermatitis (IC...

A multimedia version of Piers-Harris Children's Self-Concept Scale 2 (Piers-Harris 2) was created with audio and cartoon animation to facilitate the measurement of self-concept among younger children. This study aimed to assess the psychometric qualities of the computer version of Piers-Harris 2 scores, examine its score equivalence with the paper-...

Ambient bacteria and endotoxins are components of bioaerosols, which are abundant in ambient air. Exposure to ambient bacteria and endotoxins has been associated with respiratory symptoms. We monitored the spatiotemporal distributions of ambient bioaerosols in the Greater Taipei area by using multisite sampling and developed regression models for a...

Family planning has improved the well-being of families by preventing high-risk pregnancies and abortions and reducing unplanned pregnancies. However, the effectiveness of family planning efforts has not been consistent across countries. This study examined factors associated with contraceptive use among married women in Ethiopia. Data were from th...

The theory of ecological unequal exchange explains how trade and various forms of economic activity create the problem of environmental degradation, and lead to the deterioration of population health. Based on this theory, our study examined the inter-relationship among economic characteristics, ecological footprints, CO2 emissions, infant mortalit...

Airborne fungal spores, a type of bioaerosols, are significant air pollutants. We conducted a study to determine the spatiotemporal distributions of ambient fungi in the Greater Taipei area and develop land use regression (LUR) models for total and major fungal taxa. Four seasonal sampling campaigns were conducted over a year at 44 representative s...

Health-protective behaviors, such as receiving a vaccine, wearing a face mask, and washing hands frequently, can reduce the risk of contracting influenza. However, little is known about how social capital may influence health-protective behavior in the general population. This study examined whether each of the social capital dimensions (bonding, b...

Objective Despite the large reduction in infant mortality rates in the last two decades, the burden of infant mortality is still high in Malawi. Because few studies have specifically addressed the determinants of infant mortality in Malawi, this exploratory study identified a series of distal, intermediate, and proximal factors related to infant mo...

The concept of social cohesion has invoked debate due to the vagueness of its definition and the limitations of current measurements. This paper attempts to examine the concept of social cohesion, develop measurements, and investigate the relationship between social cohesion and individual health. This study used a multilevel study design. The indi...

Background: Few studies have addressed how political and economic contexts shape the effects of health services and environment, such that a politically and economically unstable society, despite having sufficient health professionals and facilities, finds it difficult to transfer health resources into actual population health performance. We exam...

This study used a longitudinal dataset and lagged dependent-variable panel regression models to examine whether political and economic characteristics directly predict under-5-year mortality rates (U5MR), and moderate the effects of health services and environment on U5MR. We used a sample of 46 less-developed countries from 1980 to 2009. Our resul...

This longitudinal study builds on the cross-sectional work of Karim et al and examines the influence of welfare state regime on population health with a particular focus on East Asian welfare states (eg, Hong Kong, Japan, Korea, Singapore and Taiwan). Data were extracted from the Organisation of Economic Co-operation and Development Data Set, World...

Many diseases in Africa can be prevented with appropriate public health interventions. This study aimed to assess the bibliometric characteristics of public health related research articles published by researchers in African institutions from 1991 to 2005. Data used in this study were obtained from the online version of the ISI Web of Science: Sci...

This study was conducted to evaluate the effects of transported Asian dust and other environmental parameters on the levels and compositions of ambient fungi in the atmosphere of northern Taiwan. We monitored Asian dust events in Taipei County, Taiwan from January 2003 to June 2004. We used duplicate Burkard portable air samplers to collect ambient...

Objectives: This study investigated the characteristics and determinants of airborne bacteria in long-term care facilities in Taiwan. Methods: We did intensive environmental samplings, including airborne culturable bacteria and major indoor air quality factors, in five long-term care facilities in Taipei. We used statistical models to evaluate the...

The Piers—Harris Children’s Self-Concept Scale—Second Edition (Piers—Harris 2) was designed to measure self-concept among children and adolescents. This study aimed to assess the reliability and validity of the scores of the Chinese version of the Piers—Harris 2 (Chinese Piers—Harris). The Chinese Piers—Harris 2 was administered to 243 Taiwanese st...

Background: A large number of non-governmental organization (NGO) workers work with ethnic indigenous (Malayo- Polynesian) Taiwanese. Therefore, understanding the difficulties and related practical issues frequently encountered by NGO workers in the course of such work is necessary. Purpose: This study was designed to understand the challenges face...

Objectives: This study examined the relationship between township-level factors and teenage birth rates from 1980 to 2005 in 359 townships in Taiwan. We also examined whether townshiplevel factors were associated with five-year and ten-year teenage birth rates. Methods: The data came from Taiwan Demography, The City and County Statistics, and Censu...

The influence of a place on adolescent health behaviors has received increasing research attention. The argument has been that there are contextual processes operating at the scale of communities or other geographical areas, which are responsible for health inequality. However, few studies have examined the contextual effects on health in a longitu...

This study examined the relationships of adolescents' perceptions of parental and peer behaviors with cigarette and alcohol use in different neighborhood contexts. The sample included 924 adolescents (49% boys, 51% girls) 12-14 years of age whose addresses were matched with 1990 census block groups. Six neighborhood types were identified through a...

This study suggests a multivariate-structural approach combining factor analysis and cluster analysis that could be used to examine neighborhood effects on an individual's health. Data were from the Taiwan Social Change Survey conducted in 1990, 1995, and 2000. In total, 5,784 women and men aged over 20 years living in 428 neighborhoods were interv...

Despite the concept of social capital receiving great attention in the area of health research, few studies have analyzed the differential effects of social capital between genders. This article assesses gender differences in the relationships between social capital and smoking and drinking behavior in Taiwan. Data on individual sociodemographic ch...

Inequality in health has long been a topic of discussion. The purpose of this research was to provide estimates of the proportions of elderly who had difficulties in activities of daily living in each of the 23 administrative areas of Taiwan, and to assess if there was geographical disparity in disability across areas. A nationally representative s...

We assessed direct effects of neighborhood-level characteristics and interactive effects of neighborhood-level characteristics and individual socioeconomic position on adult smoking and drinking, after consideration of individual-level characteristics in Taiwan. Data on individual sociodemographic characteristics, smoking, and drinking were obtaine...

Objectives: The purpose of this research is to assess the structural, functional, and content quality of weight-loss related websites. Methods: The 'Yahoo' and 'Yam' search engines were used to search for websites using "weight-loss" and "body sculpture" as keywords. A total of 120 websites were selected and their contents were analyzed. The basic...

To assess the effects of neighbourhood level socioeconomic status (SES) and convenience store concentration on individual level smoking, after consideration of individual level characteristics. Individual sociodemographic characteristics and smoking were obtained from five cross sectional surveys (1979-1990). Participants' addresses were geocoded a...

The influence of neighborhoods on adolescent behaviors has received increasing research attention. In the present study, we use structural equation models to specify pathways from neighborhoods to adolescent cigarette and alcohol use through parental closeness, parental monitoring, parent substance use, and peer substance use. We use a national sam...

Family Matters is a universal intervention designed to prevent adolescent tobacco and alcohol use through involvement of family members and by targeting family risk factors for tobacco and alcohol use. Previously reported findings suggest that the program reduced the prevalence of both adolescent smoking and drinking in the 12 months after program...