Xinming Song

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BACKGROUND Shanxi Province has historically reported a high prevalence of NTDs. In order to establish baseline rates for NTDs and discuss the risk factors associated with sociodemographic, maternal characteristics, and geographic factors, we performed the present study using an approach combining population and hospital-based methodologies. METHODS We(More)
OBJECTIVE Depression is a common mental disorder in older adults. We examined the prevalence and risk factors for depression in older adults in the Beijing area. METHOD We used data from a cross-sectional survey conducted in July 2006 in Beijing. As part of the national survey for older Chinese adults, 2002 older adults were interviewed. The 15-item(More)
OBJECTIVE To evaluate changes in the age-adjusted prevalence of disability in transitional China from 1987 to 2006. METHODS Data from nationally representative surveys conducted in 1987 and 2006 were used to calculate age-adjusted disability prevalence rates by applying appropriate sample weights and directly adjusting to the age distribution of the 1990(More)
Illiterate people may frequently experience social discrimination and exclusion in our modern society. It has been suggested that social adversity increases risk of schizophrenia. The current study examines the relation between illiteracy and schizophrenia. We utilized data on 1,909,205 representative Chinese people of age 18 years or older collected by the(More)
OBJECTIVE Our objective is to build a model that explains the association between the exposure to trace elements in the soil and the risk of neural tube defects. METHODS We built a function with different parameters to describe the effects of trace elements on neural tube defects. The association between neural tube defects and trace element levels was(More)
BACKGROUND To determine whether periconceptional use of multivitamin supplements containing folic acid increases the occurrence of male births in a Chinese population. METHODS A prospective cohort study was carried out in 18 counties in four provinces of China. Participants were naturally and voluntarily divided into an intervention group (who took a(More)
BACKGROUND Road traffic injuries are a population health problem worldwide especially in less-developed countries; however, little is known about road traffic disability (RTD). This study aims to estimate RTD prevalence and to explore RTD socio-demographic disparities if any within China. METHODS The 2006 China national disability survey was employed to(More)
OBJECTIVE This study evaluates trends in disability-free life expectancy (DFLE) of Chinese adults aged 60 and older. METHODS Based on two national disability surveys in 1987 and 2006 as well as mortality data from World Population Prospects, the Sullivan method was used to calculate DFLE. RESULTS DFLE increased from 13.0 to 13.9 years at age 60 and from(More)
BACKGROUND Birth defects, which are the major cause of infant mortality and a leading cause of disability, refer to "Any anomaly, functional or structural, that presents in infancy or later in life and is caused by events preceding birth, whether inherited, or acquired (ICBDMS)". However, the risk factors associated with heredity and/or environment are very(More)
AIM This article examines the prevalence of functional disability as well as sociodemographic correlations among Chinese older adults based on the most recent China National Sample Survey on Disability in 2006. METHODS Functional disability was defined as lost motor function or limited movements and activities according to the International Classification(More)