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Objective To analyze the differences between the exposure levels of major stroke risk factors and cerebral vascular hemodynamic indexes (CVHIs) in Han nationality and major ethnic minorities in Pu'er People Hospital in southwest Yunnan. Methods In this cross-sectional study,26 640 patients admitted to Pu'er People Hospital for stroke risk assessment were recruited from July 2016 to September 2018. Major risk factors of stroke and CVHIs were investigated and detected. The subjects were divided into six ethnic groups,including Han, Yi, Hani, Dai, Lahu and Wa. The differences of the exposure rate of major stroke risk factors,CVHIs and cerebrovascular function scores among these ethnic groups were compared and analyzed. Results There were significant differences (all P < 0. 01) in the risk factors for stroke. Dai ethnic group had the highest prevalence of hypertension (34. 7% [194/559]) and Wa ethnic group the lowest (26. 3% [94/358]). Han ethnic group had the highest dyslipidemia rate of 7. 9% [1892/23887], and Dai ethnic group was 4. 3% [24/559] . The prevalence rate of diabetes among Lahu ethnic group was highest at 10. 1% [34/335] and Hani ethnic group lowest at 3.3% [30/907]. Among different ethnic groups, the minimum velocity, mean velocity, peripheral resistance, and cerebrovascular function scores were statistically significant (all P <0.05). The proportion of cerebrovascular function scores less than 75 points (stroke high-risk individual) in Han, Y i, Hani, Dai, Lahu, Wa ethnic group was respectively 36.7% [8 759/23 887],32.7% [194/594],34. 1% [309/907], 38. 3% [214/559], 31. 9% [107/335] and 32. 4% [116/358] (P < 0. 05) . Conclusions There were significant differences in the exposure levels of major stroke risk factors and CVHIs among ethnic groups in Pu'er People Hospital in southwest Yunnan. Han and Lahu ethnic groups had higher exposure level of risk factors. Cerebral vascular function damage was more serious in Han and Dai ethnic groups.
ABSTRACT
Objective To investigate the difference between Han nationality residents and the Hani nationality residents in southern Yunnan about the effects of stroke risk factors on cerebral vascular hemodynamic indicators.Methods In the cohort crowds,Hani nationality outpatient patients were selected as the Hani nationality group,the Han nationality outpatient patients with the same gender and similar age were randomly selected as the Han nationality group with the ratio of nearly 1 ∶ 3.The risk factors of stroke and the differences of the hemodynamic indicators were compared between the two groups.Results The dyslipidemia proportion of the Hani nationality group was lower than that of the Han nationality group [48 cases (11.5 ％) vs.257 cases (17.5 ％),x2 =8.867,P =0.003],and the drinking proportion of the Hani nationality group was higher than that of the Han nationality group [79 cases (18.9％) vs.214 cases(14.6％),x2 =4.498,P =0.034],the other risk factors exposure rates had no statistically significant differences between the two groups (all P ＞ 0.05).The ratio of numbers of cerebral vascular hemodynamic indicators below 75 points(optimum truncation points) in the Hani nationality group and the Han nationality group were 30.3％ and 31.9％,respectively,the proportion of the two groups of integral value distribution had statistically significant difference (x2 =12.614,P ＜ 0.01);Vmean (left:t =0.632,P =0.527;right:t =0.642,P =0.532),Vmin (left:t =-0.349,P =0.727;right:t =-0.540,P =0.589),Wv(left:t =0.297,P =0.767;right:t =1.119,P =0.263),Zcv(left:t =0.297,P =0.767;right:t =1.247,P =0.213),Rv(left:t =0.837,P =0.403;right:t =1.222,P =0.222),DR(left:t =0.720,P =0.482;right:t =0.396,P =0.692),Cp(left:t =0.614,P =0.539;right:t =1.486,P =0.138) and other indicators of the two groups had no statistically significant differences.Conclusion The Hani nationality residents'stroke risk factors and CVHI integral distribution in different age groups are different from Han people in southern Yunnan.
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Objective To investigate the exposure to stroke risk factors, the proportion of high?risk individuals, and the relationship between risk factor exposure and impaired cerebrovascular hemodynamics in patients at Pu'er People's Hospital. Methods Between April 2014 and June 2017, this study enrolled inpatients and outpatients of the neurology department of Pu'er People's Hospital who underwent cerebrovascular hemodynamic examinations to evaluate stroke risk. A total of 30 103 (12 793 males and 17 310 females) participants aged 22 to 99 (53.3±14.5) years were included. The distribution of exposure rates for stroke risk factors and proportion of high?risk individuals were determined according to age and sex. The relationships between integral scores of cerebrovascular hemodynamics and exposure to risk factors were also analyzed. Results Exposure rates for risk factors of hypertension, dyslipidemia, diabetes, heart disease, stroke family history, cigarette smoking, alcohol drinking, and overweight or obesity in males were 36.6%, 11.4%, 8.8%, 5.9%, 7.0%, 41.6%, 37.8%, and 51.4%, respectively. The exposure rates in females were 31.2%, 11.3%, 7.6%, 5.5%, 6.8%, 0.7%, 1.6%, and 48.8%, respectively. Differences between age groups for all risk factors were significant (P<0.01). Exposure rates for hypertension, diabetes, cigarette smoking, alcohol drinking, and overweight or obesity in males were significantly higher than in females (P<0.01). High?risk males and females accounted for 41.8% and 35.6% (χ2=119.82, P<0.01) and the rates in both groups increased significantly with age (χ2=1 838.2, 2 881.5, P<0.01). Risk factors including age, hypertension, dyslipidemia, diabetes, heart disease, stroke family history, alcohol drinking, and body mass index were independent predictors of increased individual risk of stroke. Conclusions Exposure levels for stroke risk factors and the proportion of individuals at high risk of stroke were relatively high in the hospital population. Cerebrovascular dysfunction is closely related to exposure to common risk factors for stroke.
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Objective To investigate the pollution status of main indoors air pollution factor, CO and CO2, in Guangzhou City, and to study the feasibility of using same standards in pollution monitoring. Methods 822 sampling points of various public places were monitored. Public places were classified into 1 group (≤5 mg/m3)?2 group(≤10 mg/m3)?3 group(CO level was not require to monitor)by CO level and were classified into Ⅰgroup(≤0.07%)?Ⅱgroup(≤0.10%)?Ⅲgroup(≤0.15%) by CO2 level. The 822 statistics of various public places were analyzed according to the standard value of hygienic Standard for Public Place. Results The results of the monitoring value of CO and CO2 showed as positive bias distribution. Average of CO was (2.76?1.41)mg/m3, the 95% percentile was 6.2 mg/m3; CO2 average value was (0.060?0.020)%, the 95% percentile was 0.099%. There was no significant difference among CO concentrations in 3 public places classified according to the standard (?2=3.70, P=0.157), but significant difference had been seen among CO2 (?2=35.266, P