Association between serum trace elements and dyslipidemia： a community-based cross-sectional study / 上海预防医学

Objective:To investigate the association between serum trace elements and dyslipidemia in Pudong New Area. Methods:A community-based cross-sectional study was carried out. A stratified， cluster sampling approach was used for sampling. In total 1 814 community residents aged above 35 years old were recruited in Pudong New Area， Shanghai. A face-to-face investigation was conducted and blood samples were collected. Serum levels of 16 trace elements， including boron， vanadium， chromium， manganese， iron， cobalt， nickel， copper， zinc， arsenic， selenium， strontium， molybdenum， tin， antimony， and barium were measured by inductively coupled plasma mass spectrometry （ICP-MS）. The relationship between serum trace elements and dyslipidemia was analyzed with single and multiple Logistic regression models. Results:Prevalence of dyslipidemia is higher among participants of more than 45 years old with high BMI， hypertension or diabetes．Serum iron leveled the highest， followed by copper， zinc， selenium， strontium， boron and other trace elements. After adjusting for potential confounders， the odds ratios of dyslipidemia associated with the highest quartile of trace elements concentrations were 1.41 （95%CI： 1.12-1.78）， 0.77 （95%CI： 0.61-0.96）， 1.65 （95%CI： 1.31-2.09）， 1.27 （95%CI： 1.02-1.58）， and 1.32 （95%CI： 1.06-1.66） for chromium， cobalt， zinc， arsenic， and tin， respectively， compared with that associated with the other three quartiles. Conclusion:Some serum trace elements are potentially associated with dyslipidemia in community residents.

Association between sleep quality and risk of acute exacerbation of mild and moderate chronic obstructive pulmonary disease： a community-based prospective study / 上海预防医学

Objective:To investigate the association between sleep quality and the risk of acute exacerbation in mild and moderate chronic obstructive pulmonary disease （COPD） patients in Pudong New Area of Shanghai. Methods:This was a prospective study involving eligible mild and moderate COPD patients from 10 communities randomly selected in Pudong New District of Shanghai. A structured questionnaire was used to collect demographic characteristics， clinical information and information on acute exacerbation. Sleep quality was assessed using the Pittsburgh Sleep Quality Index （PSQI） in Chinese. Multiple negative binomial regression was used to estimate the association between sleep quality and risk of exacerbation. Results:Altogether 212 mild/moderate COPD patients participated and completed the entire survey， of whom the majority （95.8%） were mild COPD patients， 110 persons female and over half （54.2%） over 65 years old. 32.9% of the patients had poorer sleep quality at baseline. 18.9% of the patients reported exacerbation over the past year during follow-ups. Multiple negative binomial regression suggested that increased PSQI was related to higher risk of exacerbation （RRad=1.12， 95%CI：1.02-1.24）， and patients with poorer sleep efficiency had a higher risk of exacerbation （RRad=1.66， 95%CI：1.17-5.43）. Conclusion:Poorer sleep quality is associated with a higher risk of exacerbation in community mild/moderate COPD patients， especially in those with problem of sleep efficiency. More attention to sleep disorders is warranted in community management or self-management of patients with COPD.

Estimates and prediction of prostate cancer incidence, mortality and prevalence in China, 2008 / 中华流行病学杂志

Objective To estimate the incidence,mortality and 5-year prevalence of prostate cancer in China,in 2008.Methods Data from 36 cancer registries and the Third National Death Survey in China (2004-2005)was used to estimate the incidence,mortality and 5-year prevalence rates of prostate cancer in China in 2008.Mathematical models were used to predict the incidence and mortality of prostate cancer in the next 20 years.Results In 2008,the incidence of prostate cancer was 33 802 (2.1％),with the incidence rate as 4.3/100 000,which ranked the eighth among all the male cancers.Mortality of prostate cancer in China was 14 297 (1.2％) with the mortality rate of 1.8/100 000,which ranked eleventh among all the male cancers.The 5-year prevalence rate of prostate cancer in China was 75 535 (3.5％) with the proportion of 13.8/100 000,ranking the seventh among all the male cancers.The incidence and mortality of prostate cancer in men before the age of 60 maintained at a low level,but rose rapidly after the age of 60.Data on prediction showed that the incidence and mortality of prostate cancer in China would gradually increase in the next 20 years.Conclusion Both incidence and mortality of prostate cancer in China would keep increasing in the future.Prevention and control programs for prostate cancer should be strengthened.

Estimates and prediction on incidence, mortality and prevalence of brain and neurologic tumors in China, 2008 / 中华流行病学杂志

Objective To estimate the incidence,mortality and 5-year prevalence of brain and neurologic tumors in China,2008.Methods Data from 36 cancer registries in China and from the Third National Death Survey in China were used to estimate the incidence,mortality and 5-year prevalence of brain and neurologic tumors in 2008,using the mathematical models.Prediction on the incidence,and mortality of brain and neurologic tumors in the next 20 years was also carried out.Results In 2008,the incidence of brain and neurologic tumors in China was 66 454 (2.4％) and the incidence rate of age-standardized was 4.4/100 000,ranking tenth among all the cancers.The mortality of brain and neurologic tumors in China was 45 573 （ 2.3％),with mortality rate as 3.0/100 000,which ranked seventh among all the cancers.The 5-year prevalence of brain and neurologic tumors in China was 91 449(2.0％) and the proportion was 8.6/100 000,which ranked twelfth among all the cancers.Incidence rates of brain and neurologic tumors in all the age groups were similar in both sexes,but the rate of incidence increased faster before 40 years old and slowed down thereafter.In the next 20 years,data from the prediction showed that the incidence and mortality of brain and neurologic tumors in China would gradually increase.Conclusion The burden of brain and neurologic tumors was increasing continuously.