AIM:To investigate the incidence of gastroesophageal reflux disease(GERD) and its related risk factors in Uygur and Han Chinese adult in Urumqi,China.METHODS:A population-based cross-sectional survey was undertaken in...AIM:To investigate the incidence of gastroesophageal reflux disease(GERD) and its related risk factors in Uygur and Han Chinese adult in Urumqi,China.METHODS:A population-based cross-sectional survey was undertaken in a total of 972 Uygur(684 male and 288 female) aged from 24 to 61 and 1023 Han Chinese(752 male and 271 female) aged from 23 to 63 years.All participants were recruited from the residents who visited hospital for health examination from November 2011 to May 2012.Each participant signed an informed consent and completed a GERD questionnaire(GerdQ) and a lifestyle-food frequency questionnaire survey.Participants whose Gerd Q score was ≥ 8 and met one of the following requirements would be enrolled into this research:(1) being diagnosed with erosive esophagitis(EE) or Barrett's esophagus(BE) by endoscopy;(2) negative manifestation under endoscopy(non-erosive reflux disease,NERD) with abnormal acid reflux revealed by 24-h esophageal pH monitoring;and(3) suffering from typical heartburn and regurgitation with positive result of proton pump inhibitor test.RESULTS:According to Gerd Q scoring criteria,340 cases of Uygur and 286 cases of Han Chinese were defined as GERD.GERD incidence in Uygur was significantly higher than in Han Chinese(35% vs 28%,χ2 = 11.09,P < 0.005),Gerd Q score in Uygur was higher than in Han Chinese(7.85 ± 3.1 vs 7.15 ± 2.9,P < 0.005),and Gerd Q total score in Uygur male was higher than in female(8.15 ± 2.8 vs 6.85 ± 2.5,P < 0.005).According to normalized methods,304(31%) cases of Uygur were diagnosed with GERD,including 89 cases of EE,185 cases of NERD and 30 cases of BE;256(25%) cases of Han Chinese were diagnosed with GERD,including 90 cases of EE,140 cases of NERD and 26 cases of BE.GERD incidence in Uygur was significantly higher than in Han Chinese(31% vs 25%,χ2 = 9.34,P < 0.005) while the incidences were higher in males of both groups than in females(26% vs 5% in Uygur,χ2 = 35.95,P < 0.005,and 19.8% vs 5.2% in Han,χ2 = 5.48,P < 0.025).GERD incidence in Uygur male was higher than in Han Chinese male(26% vs 19.8%,χ2 = 16.51,P < 0.005),and incidence of NERD in Uygur was higher than in Han Chinese(χ2 = 10.06,P < 0.005).Occupation(r = 0.623),gender(r = 0.839),smoking(r = 0.322),strong tea(r = 0.658),alcohol drinking(r = 0.696),meat-based diet(mainly meat)(r = 0.676) and body mass index(BMI)(r = 0.567) were linearly correlated with GERD in Uygur(r = 0.833,P = 0.000);while gender(r = 0.957),age(r = 0.016),occupation(r = 0.482),strong tea(r = 1.124),alcohol drinking(r = 0.558),meat diet(r = 0.591) and BMI(r = 0.246) were linearly correlated with GERD in Han Chinese(r = 0.786,P = 0.01).There was no significant difference between Gerd Q scoring and three normalized methods for the diagnosis of GERD.CONCLUSION:GERD is highly prevalent in adult in Urumqi,especially in Uygur.Male,civil servant,smoking,strong tea,alcohol drinking,meat diet and BMI are risk factors correlated to GERD.展开更多
Using the data at the county levcl and the regional gravity center model, we calculated six key socio-economic gravity centers, namely population, GDP, output values of primary, secondary and tertiary industries, and ...Using the data at the county levcl and the regional gravity center model, we calculated six key socio-economic gravity centers, namely population, GDP, output values of primary, secondary and tertiary industries, and arable land area in the Tarim River Basin for each year from 1980 to 2009. We inspected the spatial dynamics of these centers and found that the gravity centers of population and economy evolved simultaneously. The disproportional growth between the population and the economy is also analyzed. The results show that: 1) The gravity centers of the GDR the output values of the main three industries and arable land area show migration trending from southwest to northeast, while the population gravity center shows an excessive growth in the southwest during the same time period. The migration amplitude of the GDP and output values of primary industry, secondary industry, tertiary industry are measurably higher than that of the population. 2) The population gravity center has a negative correlation with the gravity centers of secondary and tertiary industries output values in both longitudinal and latitudinal directions, and a positive correlation with that of primary industry output value in the longitudinal direction. Based on the analysis of correlation coefficient and offset distance, the imbalance between the population and the economy has increased since the 1980s, with regional economic differences now exceeding the international cordon.展开更多
Using wavelet analysis,regression analysis and the Mann-Kendall test,this paper analyzed time-series(1959-2006) weather data from 23 meteorological stations in an attempt to characterize the climate change in the Tari...Using wavelet analysis,regression analysis and the Mann-Kendall test,this paper analyzed time-series(1959-2006) weather data from 23 meteorological stations in an attempt to characterize the climate change in the Tarim River Basin of Xinjiang Uygur Autonomous Region,China.Major findings are as follows:1) In the 48-year study period,average annual temperature,annual precipitation and average annual relative humidity all presented nonlinear trends.2) At the 16-year time scale,all three climate indices unanimously showed a rather flat before 1964 and a detectable pickup thereafter.At the 8-year time scale,an S-shaped nonlinear and uprising trend was revealed with slight fluctuations in the entire process for all three indices.Incidentally,they all showed similar pattern of a slight increase before 1980 and a noticeable up-swing afterwards.The 4-year time scale provided a highly fluctuating pattern of periodical oscillations and spiral increases.3) Average annual relative humidity presented a negative correlation with average annual temperature and a positive correlation with annual precipitation at each time scale,which revealed a close dynamic relationship among them at the confidence level of 0.001.4) The Mann-Kendall test at the 0.05 confidence level demonstrated that the climate warming trend,as represented by the rising average annual temperature,was remarkable,but the climate wetting trend,as indicated by the rising annual precipitation and average annual relative humidity,was not obvious.展开更多
The ethnic landscape of Urumqi has undergone significant changes since the 1980s, which has fostered greater ethnic diversity. However, little is known about the changing patterns of spatial segregation among ethnic g...The ethnic landscape of Urumqi has undergone significant changes since the 1980s, which has fostered greater ethnic diversity. However, little is known about the changing patterns of spatial segregation among ethnic groups. By using the Urumqi census data from 1982 to 2010, this study examines the level of residential segregation of Uighur from Hart and the level of residential segregation of Kazak, Hui, Mongolia and other ethnic minority groups from the majority Han and Uygur population by the indices of dissimilarity and exposure. Then it assesses a regression between residential segregation and the percentage of the ethnic groups. Finally, it finds out whether there exists a regression between residential segregation and the percentage of the ethnic groups. The result reveals that Kazak population is the most segregated group from Han and Uygur, although the level of segregation has declined from 1982 to 2010. Uighur people experienced lower level of segregation from Han between 1982 and 2000, but has gradually increased, particularly from 2000 to 2010; this unexpected change of the segregation for Uighur group might be associated with 7.5 Events. The findings of the study show that the growth of the Han population is negatively associated with segregation of the ethnic groups in a district, and that the association between the percentage of population and segregation was uniform for Uighur, Hui and Kazak: the higher percentage of an ethnic group in a district, the lower level of segregation.展开更多
基金Supported by Research Fund of the Education Department of Shaanxi Province,China,No. 09JK710
文摘AIM:To investigate the incidence of gastroesophageal reflux disease(GERD) and its related risk factors in Uygur and Han Chinese adult in Urumqi,China.METHODS:A population-based cross-sectional survey was undertaken in a total of 972 Uygur(684 male and 288 female) aged from 24 to 61 and 1023 Han Chinese(752 male and 271 female) aged from 23 to 63 years.All participants were recruited from the residents who visited hospital for health examination from November 2011 to May 2012.Each participant signed an informed consent and completed a GERD questionnaire(GerdQ) and a lifestyle-food frequency questionnaire survey.Participants whose Gerd Q score was ≥ 8 and met one of the following requirements would be enrolled into this research:(1) being diagnosed with erosive esophagitis(EE) or Barrett's esophagus(BE) by endoscopy;(2) negative manifestation under endoscopy(non-erosive reflux disease,NERD) with abnormal acid reflux revealed by 24-h esophageal pH monitoring;and(3) suffering from typical heartburn and regurgitation with positive result of proton pump inhibitor test.RESULTS:According to Gerd Q scoring criteria,340 cases of Uygur and 286 cases of Han Chinese were defined as GERD.GERD incidence in Uygur was significantly higher than in Han Chinese(35% vs 28%,χ2 = 11.09,P < 0.005),Gerd Q score in Uygur was higher than in Han Chinese(7.85 ± 3.1 vs 7.15 ± 2.9,P < 0.005),and Gerd Q total score in Uygur male was higher than in female(8.15 ± 2.8 vs 6.85 ± 2.5,P < 0.005).According to normalized methods,304(31%) cases of Uygur were diagnosed with GERD,including 89 cases of EE,185 cases of NERD and 30 cases of BE;256(25%) cases of Han Chinese were diagnosed with GERD,including 90 cases of EE,140 cases of NERD and 26 cases of BE.GERD incidence in Uygur was significantly higher than in Han Chinese(31% vs 25%,χ2 = 9.34,P < 0.005) while the incidences were higher in males of both groups than in females(26% vs 5% in Uygur,χ2 = 35.95,P < 0.005,and 19.8% vs 5.2% in Han,χ2 = 5.48,P < 0.025).GERD incidence in Uygur male was higher than in Han Chinese male(26% vs 19.8%,χ2 = 16.51,P < 0.005),and incidence of NERD in Uygur was higher than in Han Chinese(χ2 = 10.06,P < 0.005).Occupation(r = 0.623),gender(r = 0.839),smoking(r = 0.322),strong tea(r = 0.658),alcohol drinking(r = 0.696),meat-based diet(mainly meat)(r = 0.676) and body mass index(BMI)(r = 0.567) were linearly correlated with GERD in Uygur(r = 0.833,P = 0.000);while gender(r = 0.957),age(r = 0.016),occupation(r = 0.482),strong tea(r = 1.124),alcohol drinking(r = 0.558),meat diet(r = 0.591) and BMI(r = 0.246) were linearly correlated with GERD in Han Chinese(r = 0.786,P = 0.01).There was no significant difference between Gerd Q scoring and three normalized methods for the diagnosis of GERD.CONCLUSION:GERD is highly prevalent in adult in Urumqi,especially in Uygur.Male,civil servant,smoking,strong tea,alcohol drinking,meat diet and BMI are risk factors correlated to GERD.
基金Under the auspices of National Basic Research Program of China(No.2010CB951003)
文摘Using the data at the county levcl and the regional gravity center model, we calculated six key socio-economic gravity centers, namely population, GDP, output values of primary, secondary and tertiary industries, and arable land area in the Tarim River Basin for each year from 1980 to 2009. We inspected the spatial dynamics of these centers and found that the gravity centers of population and economy evolved simultaneously. The disproportional growth between the population and the economy is also analyzed. The results show that: 1) The gravity centers of the GDR the output values of the main three industries and arable land area show migration trending from southwest to northeast, while the population gravity center shows an excessive growth in the southwest during the same time period. The migration amplitude of the GDP and output values of primary industry, secondary industry, tertiary industry are measurably higher than that of the population. 2) The population gravity center has a negative correlation with the gravity centers of secondary and tertiary industries output values in both longitudinal and latitudinal directions, and a positive correlation with that of primary industry output value in the longitudinal direction. Based on the analysis of correlation coefficient and offset distance, the imbalance between the population and the economy has increased since the 1980s, with regional economic differences now exceeding the international cordon.
基金Under the auspices of the Second-stage Knowledge Innovation Programs of Chinese Academy of Sciences (No KZCX2-XB2-03,KZCX2-YW-127)National Natural Science Foundation of China (No 40671014)Shanghai Academic Discipline Project (Human Geography) (No B410)
文摘Using wavelet analysis,regression analysis and the Mann-Kendall test,this paper analyzed time-series(1959-2006) weather data from 23 meteorological stations in an attempt to characterize the climate change in the Tarim River Basin of Xinjiang Uygur Autonomous Region,China.Major findings are as follows:1) In the 48-year study period,average annual temperature,annual precipitation and average annual relative humidity all presented nonlinear trends.2) At the 16-year time scale,all three climate indices unanimously showed a rather flat before 1964 and a detectable pickup thereafter.At the 8-year time scale,an S-shaped nonlinear and uprising trend was revealed with slight fluctuations in the entire process for all three indices.Incidentally,they all showed similar pattern of a slight increase before 1980 and a noticeable up-swing afterwards.The 4-year time scale provided a highly fluctuating pattern of periodical oscillations and spiral increases.3) Average annual relative humidity presented a negative correlation with average annual temperature and a positive correlation with annual precipitation at each time scale,which revealed a close dynamic relationship among them at the confidence level of 0.001.4) The Mann-Kendall test at the 0.05 confidence level demonstrated that the climate warming trend,as represented by the rising average annual temperature,was remarkable,but the climate wetting trend,as indicated by the rising annual precipitation and average annual relative humidity,was not obvious.
文摘The ethnic landscape of Urumqi has undergone significant changes since the 1980s, which has fostered greater ethnic diversity. However, little is known about the changing patterns of spatial segregation among ethnic groups. By using the Urumqi census data from 1982 to 2010, this study examines the level of residential segregation of Uighur from Hart and the level of residential segregation of Kazak, Hui, Mongolia and other ethnic minority groups from the majority Han and Uygur population by the indices of dissimilarity and exposure. Then it assesses a regression between residential segregation and the percentage of the ethnic groups. Finally, it finds out whether there exists a regression between residential segregation and the percentage of the ethnic groups. The result reveals that Kazak population is the most segregated group from Han and Uygur, although the level of segregation has declined from 1982 to 2010. Uighur people experienced lower level of segregation from Han between 1982 and 2000, but has gradually increased, particularly from 2000 to 2010; this unexpected change of the segregation for Uighur group might be associated with 7.5 Events. The findings of the study show that the growth of the Han population is negatively associated with segregation of the ethnic groups in a district, and that the association between the percentage of population and segregation was uniform for Uighur, Hui and Kazak: the higher percentage of an ethnic group in a district, the lower level of segregation.