Changes in smoking behavior and subsequent mortality risk during a 35-year follow-up of a cohort in Xi'an, China.

Prospective evidence of the associations of smoking cessation with chronic obstructive pulmonary disease (COPD) and other causes of death in Asia is scarce. Previous studies, which were mostly based on baseline smoking behavior only, were subject to sick-quitter bias and misclassification resulting from changes in smoking behavior during follow-up. We followed up a cohort for 18 years (1976-1994) to assess changes in smoking behavior and then for an additional 17 years (1994-2011) to examine the relationships of continuing to smoke and new quitting with mortality risk in 1,494 Chinese people (961 men, 533 women).

Metabolic syndrome vs. its components for prediction of cardiovascular mortality: A cohort study in Chinese elderly adults.

Objective: The predictive value of the metabolic syndrome (MetS) for mortality from all-cause and cardiovascular disease (CVD) in the Chinese population is unclear. The aim of this present study was to compare MetS with its individual components as predictors of mortality in Chinese elderly adults.

Methods: A cohort of 1,535 subjects (994 men and 541 women) aged 50 years or older was selected from employees of a machinery factory in 1994 and followed until 2009.

Secondhand smoke exposure predicted COPD and other tobacco-related mortality in a 17-year cohort study in China.

Background: Prospective evidence on the association between secondhand smoke (SHS) and COPD and ischemic stroke is scarce.

Methods: We prospectively examined the relationship between SHS and major tobacco-related deaths, particularly COPD and stroke, in 910 Chinese (439 men, 471 women) who never smoked from a 17-year follow-up study in Xi’an, China. SHS exposure was defi ned as exposure to another person’s tobacco smoke at home or in the workplace.

[Study on the relationship between passive smoking and blood lipids, fibrinogen and viscosity among women who never smoke].

Objective: To determine whether blood lipids profile, fibrinogen and viscosity were associated with passive smoking (i. e. environmental tobacco smoke, ETS) in Chinese women who never smoke.

[Application of "time series analysis" in the prediction of schistosomiasis prevalence in areas of "breaking dikes or opening sluice for waterstore" in Dongting Lake areas, China].

Objective: To provide the fittest model for forecasting schistosomiasis prevalence in Haokou village of "breaking dikes or opening sluice for waterstore" in Dongting Lake areas by comparing the results of Moving Average, Exponential Smoothing, Autoregressive Model and Autoregressive integrated moving average model (ARIMA model) from 1990 to 2002.

Methods: Error sum of square of four statistical methods was compared and the fittest model was chosen.

Results: Error sum of square of predicted schistosomiasis prevalence rates in Haokou village from 1994 to 2002 were 39.

[Meta-analysis on the relationship between tobacco smoking, alcohol drinking and p53 alteration in cases with esophageal carcinoma].

Objective: To investigate the relationship between tobacco smoking, drinking and p53 alteration in esophageal carcinoma.

Methods: Literature on the relationship between p53 alteration in esophageal carcinoma and tobacco smoking, drinking through Meta-analysis were reviewed.

Results: In 14 selected papers related to tobacco smoking, pooled odds ratio (OR) of tobacco smoking with P53 overexpression and p53 alteration were 1.

[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.

Triglyceride and coronary heart disease mortality in a 24-year follow-up study in Xi'an, China.

Purpose: To study whether serum triglyceride (TG) was associated with coronary heart disease (CHD) mortality.

Methods: A cohort analytic study carried out in a machinery factory in Xi'an, China on 1696 subjects aged 35 years or above (1124 men and 572 women) examined in 1976 and followed up till 2000.

Results: At baseline, the mean serum total cholesterol (TC) and triglyceride (TG) was 4.

[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.

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.