Publications by authors named "Bao-Dong Yao"
Article Synopsis
- A population-based cohort study conducted in Shanghai from 2008 to 2011 tracked 23,415 participants over an average of 9.1 years to investigate links between environmental tobacco smoke (ETS) and various cancers.
- The study found that ETS exposure was associated with a higher risk of smoking-related cancers, including lung and stomach cancers, especially among non-smoking females.
- Results indicated that the combined effects of ETS and active smoking were strongest for all cancers, suggesting that ETS might increase cancer risks in non-smokers, highlighting a need for more research on ETS and specific cancer types.
Article Synopsis
- - A study in Shanghai examined the cancer risks in 36,379 Chinese patients with type 2 diabetes mellitus (T2DM) from 2004 to 2010, utilizing local health records and cancer registry data.
- - Findings revealed a higher overall cancer incidence among T2DM patients, with men having a standardized incidence ratio (SIR) of 1.28 and women 1.44, indicating an increased cancer risk for both genders.
- - Specific cancers showed notably higher risks: men had elevated risks for colon, rectum, prostate, and bladder cancers, while women had increased risks for colon, breast, and corpus uteri cancers.
[Natural growth and decline of Oncomelania hupensis snails in marshland of Qianliang Lake District in Eastern Dongting Lake area, China].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
August 2013
Article Synopsis
- The study aimed to analyze the changes in Oncomelania hupensis snail populations in the Qian Liang Lake district to aid in schistosomiasis control strategies.
- Research from 1988 to 2011 found that while snail density and infection rates remained stable, snail mortality decreased significantly over time.
- Notably, the population experienced a dramatic decline in 1999, with no living snails detected after that year, highlighting a significant ecological shift in the area.
[Short-term effect of black film covering on Oncomelania hupensis snail control in marshland and lake regions].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
August 2013
Objective: To evaluate the short-term effect of the black film covering combined with niclosamide on Oncomelania hupensis snail control in marshland and lake regions.
Methods: A ditch with snails in Anxiang County was selected as the experimental sites. The ditch was divided into 3 groups: a film group, a niclosamide group, and a niclosamide and film group.
[Surveillance of schistosomiasis in Zhuxi Village, Xingzi County, 2005-2010].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
October 2012
Objective: To understand the effect of schistosomiasis control in Zhuxi Village, Xingzi County, Jiangxi Province.
Methods: According to the national scheme of schistosomiasis surveillance, we investigated the schistosomiasis epidemic in Zhuxi Village from 2005-2010. The epidemic data of schistosomiasis on the humans, farm cattle, and Oncomelania snails were collected, respectively and analyzed by using the method of Cochran-Armitage test.
[Relationship between snails and recent water level in different marshlands in Xingzi County, Jiangxi Province].
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
February 2013
Objective: To study the longitudinal change of data on Oncomelania hupensis surveillance in different marshlands and the impact of recent water level in Xingzi County, Jiangxi Province.
Methods: All information including water level of hydrometric station and the data of snails at the marshlands of Xiguanhu, Majiawan and Ximiaoqian was collected to explore the longitudinal change of snails and analyze the relationship between snail distribution and recent water level with Spearman rank correlation analysis.
Results: The highest proportion of frames with living snails and living snail densities at Majiawan and Ximiaoqian was 89.
Article Synopsis
- The study aimed to assess the impact of an integrated control strategy on the distribution of infected snails in Anxiang county from 2004 to 2010, highlighting the influence of spatial factors.
- Results showed a significant decrease in both the number of infected snail embankments and the infection rate in those areas, indicating that the control measures were effective in reducing schistosomiasis risk.
- The analysis revealed nonrandom spatial patterns and a reduction in high-risk areas, suggesting that better resource allocation could further enhance the effectiveness of schistosomiasis control efforts.
Objective: With Landsat TM remote sensing images, snail habitats in Poyang Lake region were identified, using two indices: the modified normalized difference water index (MNDWI) and the normalized difference vegetation index (NDVI).
Methods: Two Remote sensing images of both wet and drought seasons in Poyang Lake region were obtained. MNDWI and NDVI were extracted from the images respectively, to present the regions of "water in summer and land in winter" and the coverage of vegetation.
[Application of multi-temporal China-Brazil Earth Recourses Satellite-02 data on surveillance of dynamic changes of water body of rivers and Oncomelania snail habitats in Anxiang County].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
April 2012
Article Synopsis
- The study aimed to analyze changes in river water bodies and Oncomelania snail habitats using China-Brazil Earth Resources Satellite-02 images from Anxiang County.
- The research involved collecting images over several months in 2004 and extracting water body data using the Normalized Difference Water Index (NDWI) to determine water area sizes.
- Findings revealed seasonal trends, with a larger water area in summer (July) and a smaller area in winter (April), confirming wet and dry seasons in June and April respectively, highlighting the satellite's usefulness for monitoring water changes.
[Study on spatial distribution of advanced schistosomiasis at village level in Anxiang County based on geographic information system].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
February 2012
Article Synopsis
- The study aimed to analyze the spatial distribution and patterns of advanced schistosomiasis in Anxiang County to improve control strategies.
- Using geographic data, researchers conducted spatial autocorrelation analysis and spatial scan statistics to examine distribution characteristics at the village level.
- Findings revealed no overall spatial autocorrelation, but identified significant local clusters in nine villages, indicating patterns that suggest targeted resource allocation for effective schistosomiasis control.
Background And Methods: To understand the burden and epidemiology of Streptococcus pneumoniae disease among children between 1 and 59 months of age in China, we conducted a review of literature published between 1980 and 2008 applying standardized algorithms. Because of the absence of population-based surveillance for pneumococcal disease (PD), we identified all-cause pneumonia, bacteremia and meningitis burden, syndromes most commonly associated with S. pneumoniae, and applied the proportion of disease attributable to S.
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