[A cohort study on the relationship between cerebrovascular hemodynamic changing and risk of stroke].

Objective: To study the role of cerebrovascular hemodynamic indexes (CVHI) changing in stroke and to provide reference for stroke prevention and risk factor study.

Methods: From 2003 to 2004, participants aged 40 years and above in two communities in Fengxian district were recruited by cluster sampling. Risk factors of stroke and CVHI were investigated and checked during baseline investigation.

[Study on over-weight, obesity and the exposure to stroke risk factors among 40 year olds and over in a community-based population].

Objective: To describe the distribution of over weight and obesity to discover the level of exposure on risk factors of stroke among people aged 40 and over, in a community-based population.

Methods: From 2003 to 2004, people aged > or = 40 years in a community of Fengxian district in Shanghai were selected by cluster sampling. Out of 11,791 individuals who were selected, 10,565 met the inclusion criteria and responded to the investigation.

[Baseline study and analysis on a stroke risk factor-related cohort in Fengxian county of Shanghai].

Objective: To explore the exposed level of stroke risk factors in Fengxian county of Shanghai and the relationships between risk factors and stroke.

Methods: Community based populations including 10,565 individuals aged 40 years old and over were cluster sampled from Fengxian county in 2003 or 2004. Status of exposure on common risk factors such as hypertension, cardiovascular disease, diabetes, family history of stroke, cigarette smoking, alcohol intake were gathered while cerebral vascular hemodynamic index (CVHI) was examined, with CVHI score below 75 points as abnormal.

[Evaluation on the indirect economic burden of stroke using combination of disability-adjusted life years and human capital method].

Objective: Using the indirect economic burden of stroke in a rural population to develop rational allocation of future health resources, in Hanzhong area.

Methods: Cluster sampling which involved 53 natural villages with a total number of 75,000 people selected from the 'stroke monitoring base' of rural population was adopted in this study in the Hanzhong area. All of the 164 stroke cases were studied through a self-designed questionnaire.

[Baseline study on a stroke-related cohort in the rural community of Shanghai].

Objective: To present data from a baseline investigation on stroke-related cohort population in rural area of Shanghai.

Methods: A cross-sectional study was carried out in a cluster sampling population aged 40 years and over. General information and data on common risk factors in the population were gathered and cerebral vascular hemodynamic indexes were checked.

[Analysis on direct economic burden of stroke in the rural population of Hanzhong, Shaanxi Province].

Objective: To analyze the direct economic burden of stroke in rural areas of Hanzhong.

Methods: Plan on primary interview was made after the purpose of the study had been informed to the managers of the 'surveillance field base', heads and members of the monitor assistants and detailed information was collected in the fields. Every single patient of stroke was then interviewed by the above said interviewers,using a self-designed questionnaire.

[Effectiveness of Nao'an Capsule on stroke prevention among high risk population in Nanhui, Shanghai].

Objective: To evaluate the effectiveness of stroke prevention among high risk population, using Nao'an Capsules.

Methods: Participants were selected from 696,558 residents in Nanhui, using county of Shanghai city. Individuals aged 35 years old and over with at least one risk factor exposure to stroke, received cerebral vascular hemodynamic examination.

[The relationship between hypertension and cerebral hemodynamic scores of vascular function accumulative].

Objective: To probe into the relationship between hypertension and hemodynamic score of cerebral vascular accumulative function by though studying the history of hypertension and level of blood pressure.

Methods: The database of blood pressure and cerebral vascular hemodynamic indexes (CVHI) were from baseline data and measurement in a cohort. 18,512 participants who met the included criteria were enlisted in the study.

[Study on the application of the Chinese version of SF-36 scales and selection of interceptive cents for its grade range].

Objective: To study the possibility of measuring quality of life by Medical Outcomes Study 36-Item Short-Form Health Survey scale and to subdivide grade range of Medical Outcomes Study 36-Item Short-From Health Survey (SF-36) total cents through a Quality of Life questionnaire among the elderly Chinese.

Methods: The quality of life of the 167 elderly Chinese in Suzhou was measured simultaneously by SF-36 and the Quality of Life questionnaire developed by Epidemiology Group of Geriatric Medicine Committee of China for the elderly. Validity and reliability were analyzed and subdivided the grade range of SF-36 total scores by Quality of Life questionnaire for the Chinese elderly.

Genetic susceptibility and environmental factors of esophageal cancer in Xi'an.

Aim: To analyse the role of genetic susceptibility and environmental factors in the process of esophageal cancer (EC) formation in Xi'an, China.

Methods: A hospital based case-control study, combined with molecular epidemiological method, was carried out. A total of 127 EC cases and 101 controls were interviewed with questionnaires containing demographic items, habit of tobacco smoking, alcohol drinking, and family history of EC.

[Principal component analysis and integral methods of cerebral vascular hemodynamic parameters].

Objective: To establish a predicting model for stroke according to cerebral vascular hemodynamic indexes and major risk factors of stroke.

Methods: Participants selected from a stroke cohort with 25,355 population in China. The first step was to carry out principal component analysis using CVHI.

[Study on mortality, incidence and risk factors of stroke in a cohort of elderly in Xi'an, China].

Objective: To prospectively study the relationship between risk factors and stroke incidence and mortality in the Chinese elderly.

Methods: An analytic study in a cohort population of 1,268 male retired cadres in a military setting. A health-screening program was carried out for all cadres aged 55 years or older in Xi'an in February 1987.

[A cohort study on cerebral vascular hemodynamics accumulative score and risks of stroke].

Objective: To estimate relative risk (RR) of cerebral vascular hemodynamics indexes (CVHI) accumulative score as well as some other risk factors of stroke.

Methods: A cohort study was carried out in 25 355 participants aged 35 and over in Northeast of China from 1994 to 2001. In the baseline survey, exposure rates of hypertension, diabetes, family history of stroke and hypertension, etc.

Smoking, quitting, and mortality in a Chinese cohort of retired men.

Purpose: To examine the relationship between smoking, quitting, and mortality in older Chinese men.

Design And Methods: A cohort analytic study was carried out in Xi'an, China. A total of 1268 retired male military cadres aged 60 or older were examined in 1987 and followed for 12 years.

Relationship of tobacco smoking CYP1A1 GSTM1 gene polymorphism and esophageal cancer in Xi'an.

Aim: To analyze the association of tobacco smoking polymorphism of CYP1A1 (7th exon) and GSTM1 genotype and esophageal cancer(EC) in Xi'an.

Methods: A hospital based case-control study, with molecular epidemiological method, was carried out. Polymorphism of CYP1A1 and GSTM1 of samples from 127 EC cases and 101 controls were detected by PCR method.