Subject Code:C18 With the support by the National Natural Science Foundation of China,a collaborative study by the research groups led by Prof.Shen Jianzhong(沈建忠)from the College of Veterinary Medicine,China Agricu...Subject Code:C18 With the support by the National Natural Science Foundation of China,a collaborative study by the research groups led by Prof.Shen Jianzhong(沈建忠)from the College of Veterinary Medicine,China Agricultural University and Prof.Timothy R.Walsh from Cardiff University demonstrates the展开更多
Dear Editor, Prostatic calcification is a common condition observed by the urology community. The earliest description was proposed by Donatus in 1586, followed by Pohl in 1737.1 In clinical practice, an overwhelming...Dear Editor, Prostatic calcification is a common condition observed by the urology community. The earliest description was proposed by Donatus in 1586, followed by Pohl in 1737.1 In clinical practice, an overwhelming majority of prostatic calcification cases are discovered incidentally. This issue has attracted considerable interests, albeit its clinical significance continues to stir discussion and debate. Patients with prostatic calcification often seek medical consultation owing to psychological or emotional reasons, thereby incurring a significant burden.展开更多
Purpose Understanding the prevalence and trends of obesity in preschool children is of critical importance for public health policy.Thus,the object of the present study was to assess the prevalence and trends of obesi...Purpose Understanding the prevalence and trends of obesity in preschool children is of critical importance for public health policy.Thus,the object of the present study was to assess the prevalence and trends of obesity in Chinese preschool children from 1996 to 2019,and to examine the differences among different population according to year,gender,age,urban/rural and geographical area.Methods Four online databases(Chinese National Knowledge Infrastructure,Wanfang Data Resource System,Weipu Chi-nese Journal Service Platform and PubMed)were searched for studies published from January 1990 to May 2019 using predefined inclusion/exclusion criteria.Random effects meta-analysis was used to calculate the prevalence of obesity.Results Forty-three studies with a total of 765,255 Chinese preschool children aged 3-6 years were included in this meta-analysis.The prevalence of obesity in the whole sample was 6.41%(95%CI:5.74%-7.78%,P<0.000,I^(2)=99.79%;obtained after trim-and-fill adjustment).There was no significant difference(P=0.222)in the prevalence of obesity during five peri-ods(1996-2000,2001-2005,2006-2010,2011-2015,2016-2019).The obesity prevalence of boys was higher than girls(P=0.007),and the obesity prevalence increased with age(P=0.000).In 2006-2010,the prevalence of obesity among urban areas was about three times than that of rural areas(P=0.001).However,the difference was decreased during 2011-2015(P=0.788).In rural areas,the obesity prevalence in 2011-2015 was two times more than that in 2006-2010(P=0.005).Geographical area was a strong determinant of heterogeneity for Chinese preschool children(P=0.001).Conclusion There was no significant difference of the obesity prevalence among any five-year periods from 1996 to 2019.The prevalence of obesity in boys was higher than girls and increased with age.Though the prevalence of obesity in rural area was lower than the urban area,the speed of the increasing of the prevalence after 2010 in rural area should be noted.Public health intervention such as physical activity promotion and nutrition education should be conducted on preschool children for obesity prevention to promote their healthy development.展开更多
Based on the noise survey in China ,the formula (H=H+N-HN/120 ) of ISO/DIS 1999.2 (' Acoustics - Determination of Occupational noise exposure and estimation of noise induced hearing impairment ' , 1985) was ap...Based on the noise survey in China ,the formula (H=H+N-HN/120 ) of ISO/DIS 1999.2 (' Acoustics - Determination of Occupational noise exposure and estimation of noise induced hearing impairment ' , 1985) was applied to the calculation of the hearing threshold level associated with age and noise (HTLAN) of the noise - impaired people . According to the Gausscian distribution , when the noise - exposure level LEX8h was 85 ,90 ,95, 100 dB and the hearing threshold frequency is from 0.5k to 6kHz , the HTLAN of noise - exposed people withdifferent duration of exposure and its relation values to the hearing threshold frequency associated with age (HTLA) were obtained . The ISO /DIS 1999.2 has been proved to be applicable in China .展开更多
文摘Subject Code:C18 With the support by the National Natural Science Foundation of China,a collaborative study by the research groups led by Prof.Shen Jianzhong(沈建忠)from the College of Veterinary Medicine,China Agricultural University and Prof.Timothy R.Walsh from Cardiff University demonstrates the
文摘Dear Editor, Prostatic calcification is a common condition observed by the urology community. The earliest description was proposed by Donatus in 1586, followed by Pohl in 1737.1 In clinical practice, an overwhelming majority of prostatic calcification cases are discovered incidentally. This issue has attracted considerable interests, albeit its clinical significance continues to stir discussion and debate. Patients with prostatic calcification often seek medical consultation owing to psychological or emotional reasons, thereby incurring a significant burden.
基金supported by“the Fundamental Research Funds for the Central Universities(Beijing Sport University 2020047)”.
文摘Purpose Understanding the prevalence and trends of obesity in preschool children is of critical importance for public health policy.Thus,the object of the present study was to assess the prevalence and trends of obesity in Chinese preschool children from 1996 to 2019,and to examine the differences among different population according to year,gender,age,urban/rural and geographical area.Methods Four online databases(Chinese National Knowledge Infrastructure,Wanfang Data Resource System,Weipu Chi-nese Journal Service Platform and PubMed)were searched for studies published from January 1990 to May 2019 using predefined inclusion/exclusion criteria.Random effects meta-analysis was used to calculate the prevalence of obesity.Results Forty-three studies with a total of 765,255 Chinese preschool children aged 3-6 years were included in this meta-analysis.The prevalence of obesity in the whole sample was 6.41%(95%CI:5.74%-7.78%,P<0.000,I^(2)=99.79%;obtained after trim-and-fill adjustment).There was no significant difference(P=0.222)in the prevalence of obesity during five peri-ods(1996-2000,2001-2005,2006-2010,2011-2015,2016-2019).The obesity prevalence of boys was higher than girls(P=0.007),and the obesity prevalence increased with age(P=0.000).In 2006-2010,the prevalence of obesity among urban areas was about three times than that of rural areas(P=0.001).However,the difference was decreased during 2011-2015(P=0.788).In rural areas,the obesity prevalence in 2011-2015 was two times more than that in 2006-2010(P=0.005).Geographical area was a strong determinant of heterogeneity for Chinese preschool children(P=0.001).Conclusion There was no significant difference of the obesity prevalence among any five-year periods from 1996 to 2019.The prevalence of obesity in boys was higher than girls and increased with age.Though the prevalence of obesity in rural area was lower than the urban area,the speed of the increasing of the prevalence after 2010 in rural area should be noted.Public health intervention such as physical activity promotion and nutrition education should be conducted on preschool children for obesity prevention to promote their healthy development.
文摘Based on the noise survey in China ,the formula (H=H+N-HN/120 ) of ISO/DIS 1999.2 (' Acoustics - Determination of Occupational noise exposure and estimation of noise induced hearing impairment ' , 1985) was applied to the calculation of the hearing threshold level associated with age and noise (HTLAN) of the noise - impaired people . According to the Gausscian distribution , when the noise - exposure level LEX8h was 85 ,90 ,95, 100 dB and the hearing threshold frequency is from 0.5k to 6kHz , the HTLAN of noise - exposed people withdifferent duration of exposure and its relation values to the hearing threshold frequency associated with age (HTLA) were obtained . The ISO /DIS 1999.2 has been proved to be applicable in China .
