| Part OneCross-sectional study on health status of elderly male veteranObjective To observe the distribution and characters of some factors associated with health status, and investigate the prevalence of some chronic diseases in elderly male veteran.Methods In a cross-sectional sdudy, subjects were randomly selected from a clustered sample of all the elderly male veteran above 65 years old in Beijing. A standardized questionnaire was designed to collect information on the demographic characteristics, lifestyle, physical examination, blood tests, disease history, ets. All of the subjects were interviewed by face to face. Epidata 3.0 and SPSS13.0 were used for data management and analysis. Results(1) 2853 people were investigated. All of them were male and aged from 65 to 96 years old.(2) The abnormal percentage of body mass index (BMI), waist, systolic blood pressure (SBP), diastolic blood pressure(DBP), total cholesterol(TC), triglycerides (TG), fasting plasma glucose(FPG), high density lipoprotein(HDL), low density lipoprotein(LDL) was respectively 56.7%, 81.7%, 28.1%, 7.4%, 32.2%, 31.7%, 28.9%, 21.4%, 28.5% in this old population. There were significant differences of height, weight, BMI , waist, SBP , DBP and HDL between four groups of 65-75years, 75-79 years, 80-84 years and 85-93 years old. The levels of TC and TG have a significant trend of declining with the increasing of age.(3) In this population, The prevalence of coronary heart disease (CHD), hypertension, chronic obstructive pulmonary disease (COPD), cerebrovascular disease, diabetes mellitus (DM), malignancy, dementia and Parkinson's disease was 65.9%, 62.9%, 32.2%, 30.6%, 26.4%, 10.5%, 2.9% and 2.3% respectively, in which has an increasing trend with aging. Besides, most of subjects suffered from more than one of the chronic diseases. The prevalence of malignancy such as gastric carcinoma, prostate carcinoma, lung cancer, colorectal cancer, renal cell carcinoma, bladder cancer, liver cancer, thyroid carcinoma, esophageal cancer is higher than others.Conclusion The trend of risk factors with increasing of age is different. Height, weight, BMI, DBP, TC and TG have a decline trend, while waist and HDL are ascending with the increasing of age. However, SBP is increasing before 85 years old and decreasing after. About 95.09% of this population have one or more chronic diseases, the rank of which is CHD, hypertension, COPD, cerebrovascular diseases, DM, malignancy, dementia, PD. The first three malignancy are gastric carcinoma, prostate carcinoma and lung cancer.Part TwoCase-control Study on the Risk Factors of Type 2 Diabetes mellitus in male elderlyAbstractObjective To investigate the risk factors of Type 2 Diabetes mellitus(T2DM) in the elderly people.Methods We selected 586 T2DM patients from a cross-sectional survey as the case group and 1504 non-T2DM subjects as the control group. The case-control design was used to analyze the risk factors of T2DM. The risk factors of T2DM included demographic characteristics, habits, activities, disease history , family history of disease and some medical examinations. T-test and Logistic regression were used to analyze the data-set. Results(1) Univariate analysis: The result of analysis for numerical data showed that age, waist, heart rate, DBP and TG are risk factors of T2DM. Waist, family history of DM, CHD,hypertension,hyperlipaemia, cerebrovascular diseases, course of CHD disease, course of hypertension, course of hyperlipaemia, milk intaking, self-evaluate of rencent three months, self-evaluate of rencent five years and widowed status were also the risk factors of T2DM. However,exercise, fruits intaking and red wine were the protective factors.(2) Multivariate analysis: After adjusting for age,marriage status, education, smoking, drinking, and other confunders, the age, TG, FPG, waist, hypertension, hyperlipaemia, cerebrovascular diseases, CHD, family history of DM, central obesity, milk intaking, self-evaluate of recent three months , self-evaluate of recent five years, exercise and fruit intaking were associated with T2DM, and the odds ratio (95%CI) was 1.06( 1.02-1.09 ), 1.15( 1.04-1.28 ), 4.79( 4.08-5.62 ), 1.05( 1.02-1.12 ), 1.33( 1.01-1.77 ), 2.08( 1.54-2.79 ), 1.39( 1.06-1.83 ), 1.27( 1.02-1.58 ), 3.39( 2.33-4.92 ),1.52( 1.15-2.00), 2.24( 1.31-3.84 ), 2.02( 1.46-2.80 ), 1.25( 1.02-1.54 ), 0.65( 0.56-0.82 ),0.12( 0.05-0.26 ) respectively. There was a cluster of risk factors for T2DM. Furthermore, the age, waist, FPG ,exercise time, course of hypertension and hyperlipaemia, self-evaluate of recentthree months, milk and fruit intaking shows a dose-reaction relationship with T2DM.Conclusion In the present population, the age, TG, FPG, waist, hypertension,hyperlipaemia, cerebrovascular diseases, CHD, family history of DM, central obesity,milk intaking, self-evaluate of recent three months , self-evaluate of recent five yearswere risk factors of T2DM, while the exercise and fruit intaking were protective factorsof T2DM.
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