A survey with self-designed questionnaire was conducted among (33 936)permanent residents aged over 15 years in Beijing Xicheng District,who were randomly selected using stratified multistage cluster sampling method.The items of survey included the prevalence of chronic diseases,behavioral risk factors and intention of visiting doctor.The results revealed that the prevalence of hypertension,diabetes,coronary heart disease,chronic arthropathy,dyslipidemia,chronic obstructive pulmonary disease (COPD) and stroke was 21.9％,8.0％,7.4％,5.8％,5.6％,3.2％ and 2.5％,respectively.Lacking physical exercise (49.3％) was the most frequent behavior risk factors of chronic diseases.The results also showed that 62.6％ residents chose large hospitals as first preference for seeking health care,only 23.7％ residents chose community health services institutions.The survey indicates that integrated intervention and management of chronic disease should be further enhanced in communitics; and the health insurance policy should be adapted to attract more residents to utilize community health service as primary care setting.

Objective To investigate health related behavior and its affecting factors among occupational populations living in Xicheng District of Beijing so as to provide good evidence for health management services.Methods A total of 33 936 permanent residents aged 15 years or above living in Xicheng District of Beijing were randomly selected with stratified multi-stage cluster random sampling method from November 2008 to March 2009,among whom 12 980 incumbency residents aged 18-60 years old were analyzed.A self-designed questionnaire was used,and height,body weight and blood pressure were measured.Multivariate non-conditional logistic regression was used for data analysis.Results The responding rate was 92.3％ (33 936/36 761).The rate of lacking physical exercise,overweight,current cigarette smoking,alcohol drinking,over-intake of salt and obesity was 62.2％ (8 074/12 980),31.6％ (4 104/12 980),25.0％ (3 249/12 980),23.5％ (3 047/12 980),17.9％ (2 324/12 980)and 8.7％(1 125/12 980),respectively.In logistic regression,the risk factors of insufficient physical exercises were current cigarette smoking and over-intake of salt,while its protective factors were male,age and higher education level (all P＜0.05).The risk factors of overweight and obesity were male,age,alcohol consumption and over-intake of salt,while its protective factor was higher education level (P＜0.05).The risk factors of current cigarette smoking were male,age,alcohol drinking,lack of physical exercises and over-intake of salt,while its protective factor was higher education level (P＜0.05).The risk factors of alcohol consumption were male,age,overweight and obesity,current cigarette smoking and over-intake of salt (all P＜0.05).The risk factors of over-intake of salt were overweight and obesity,current cigarette smoking,alcohol intake and lack of physical exercises,while its protective factor was higher education level (P＜0.05).Conclusion Our investigation suggests that the occupational population should be offered with health education and behavioral intervention.

Objective To explore the characters of cognitive dysfunction for first-ever lacunar infarction (LI). Methods 136 first-ever diagnosed LI patients were evaluated with Alzheimer's disease assessment scale (ADAS) 72 h, 2 weeks, 1 month, 3 months and 6 months after attack. The scores were compared with the baseline and those of 76 normal control. Results Memory: during the first 72 h, significant difference was shown between the every location of LI (including the basal ganglia, corona radiate,frontal lobe, temporal lobe,parietal lobe, periventricular location, centrum semiovale, thalamus) and normal control (P<0.05); but between the certain location of LI and that of normal control 2 weeks, 1, 3 and 6 months after attack (P<0.05). Language: there was significant difference between every location of LI and normal control 72 h, 2 weeks and 1 month after attack (P<0.05), but between the certain location of LI and that of normal control 3 and 6 months after attack (P<0.05). Practice: there was significant difference through every visit time point of all the LI patients compared with normal control (P<0.05). Attention: Significant difference (P<0.05) was found between every location LI patients and normal control 72 h after attack, but between certain location LI patients and normal control 2 weeks, 1, 3 and 6 months after attack (P<0.05). Orientation:LI was insufficient to cause to decline in orientation. Conclusion There are mild to severe cognitive dysfunctions in the first-ever diagnosed LI patients, which need pay attention to and intervene in time.

The pulse wave velocity(PWV)known as one of important monitoring methods in crowd more can precisely reveal the occurrence of cardiovascular events.The brachia-ankle PWV(baPWV)is referred to cosmically epidemiological study in crowd.PWV is known as a vicarious mark of arteriosclerotic burden and an independent risk factor.Moreover,used for decision the therapeutic effect.Our study initially showed that PWV was only a mark of cardiovascular events and was not a predict end point.

Objective To observe the relationship between brachial-ankle pulse wave velocity(baPWV)and cardiovascular risk factors as well as clinical cardiovascular events in high cardiovascular risk patients.MethodsRelevant clinical data,including baPWV,height,weight,waist circumference,blood pressure,heart rate,history and blood biochemistry test were collected in 111 consecutive patients with high cardiovascular risk.High cardiovascular risk patients are defined as those who developed cardiovascular events (coronary heart disease,ischemic stroke and transient ischemic attack) before or those who have two or more cardiovascular risk factors(more than 50 years old,smoking,obesity,hypertension,diabetes mellitus and hyperlipidemia).The number of risk factors and cardiovascular events between patients with high baPWV (≥1700 cm/s) and low baPWV (<1700 cm/s) were compared.ResultsCompared with low baPWV group,the cardiovascular events and the number of cardiovascular risk factors were higher in high baPWV group(35.3% versus 60.5%,P<0.01 and (3.9±1.2)versus (4.4±0.9),P<0.05,respectively).The factors influencing baPWV were age (P<0.001)and systolic blood pressure (P<0.01).ConclusionIn patients with high cardiovascular risk,the cardiovascular events and the number of risk factors were more frequent in patients with higher baPWV.Age and systolic blood pressure are independent risk factors of baPWV.

Objective To study the effect of hyperbaric oxygen on cognitive dysfunction in patients with leukoaraiosis (LA). Methods 48 cases of moderate or severe LA with cognitive dysfunction were divided into 2 groups: the experimental group accepted hyperbaric oxygen (HBO) besides routine therapy, while the control group accepted routine therapy only. Both groups were assessed with Montreal cognition assessment (MoCA). Results The scores of MoCA in patients in the experimental group improved after treatment（P<0.05）, and was more than that of the control group（P<0.05）. Conclusion HBO can improve the cognitive function in patients with LA.

Objective To explore the characteristics of cognitive function in patients with leukoaraiosis(LA)at different extent.Methods The cognitive function of 66 patients with different extent of LA and 49 healthy controls were measured using the MoCA scale,and the relationship between the cognitive function and the extent of LA was evaluated.Results The LA was more severe,the cognitive function of patients was more poor.The cognitive function of patients with type Ⅳ LA significantly decreased than the patients with type Ⅰ LA and the controls,especially in the language,memory,visuoconstructional and executive functions(P<0.05).While the function of naming,attention,abstraction and orientation showed no significant difference between the patients with LA and the controls(P>0.05).Conclusion Moderate and severe LA may cause impairment of cognitive function.

Objective: To investigate the smoking cessation intention and attempt to quit smoking among smokers at ages of 15 years and older in a district of Beijing Municipality, so as to provide insights into formulation of tobacco control interventions. Methods: Permanent residents at ages of 15 years and older were sampled using a multi-stage stratified cluster sampling method from a district in Beijing Municipality, and all smokers were recruited. Participants' demographic features, tobacco use, intention to quit smoking, attempts to quit smoking and awareness of tobacco-related hazards were collected using the Beijing Adult Tobacco Survey. The intention and attempts to quit smoking were analyzed among smokers, and factors affecting the attempt to quit smoking were identified using a multivariable logistic regression model. Results: A total of 687 smokers were surveyed, including 669 men (97.38%), 497 from rural areas (72.34%), 351 daily smokers (51.09%), 336 occasional smokers (48.91%), 329 with intention to quit smoking (47.89%), and 178 with attempts to quit smoking during the past one year (25.91%). Univariable analysis showed that area, age, educational level, smoking status, tobacco health literacy and tobacco control information acquired from media were factors affecting intention and attempts to quit smoking among smokers (P<0.05). Multivariable logistic regression analysis showed that smokers with intention to quit smoking (OR=5.444, 95%CI: 3.585-8.268) and occasional smoking (OR=2.142, 95%CI: 1.312-3.497) were more likely to attempt to quit smoking. Conclusions Approximately half of smokers have intention to quit smoking in a district of Beijing Municipality; however, the percentage of attempts to quit smoking is low. Targeted interventions are required for smokers with different characteristics to improve the intention to quit smoking and promote smoking-quitting behaviors.

AIM:To reveal the characteristics and patterns of mental activity in the cerebral cortex of patients with attention deficit hyperactivity disorder (ADHD) and explore the pathogenetic characteristics of ADHD.METHODS: The ADHD patients were asked to record their mental activity, general health condition and obsessions before the onset of pathological symptoms by means of psychological introspective reports.RESULTS: The direct cause of attention distraction and failure of attention focus is the patients' inability to perform cognitive tasks (including perception, memory and recollection, imagination, association and thought)in a continuously ongoing manner in relaxation. The frequent stagnancy and pause during the course of recognition precipitated the patients in a stressful state, which contributed to the onset of various hyperactivities and also resulted in the acquisition of "silent verbal thinking". This is an important psychopathological phenomenon long been neglected. All theses abnormalities caused the patients much discomfort, which was naturally relieved by means of impulsive and irritable behaviors.CONCLUSION: A series of clinical symptoms of ADHD arises from the same pathogenic factor of difficulty in mental activity and inability to carry out the activities in the cerebral cortex in a relaxed manner. The difficulty in mental activity is the key problem of ADHD and the source of various synptoms, which should be ;reated for the first place. The cause of this key problem is possibly lowered metabolism of the cerebral cortex, and the effect of "instinct" can not be neglected in the attempt to explain the pathogenesis of ADHD.

Objective　 To study the prevalence and relevant risk factors of low blood pressure and its influence on cardiovascular diseases in China. Methods　A cross-sectional study for low blood pressure was conducted using the data of the third national survey of blood pressure in 1991. Low blood pressure was defined for systolic (SBP) and diastolic (DBP) pressure less than the tenth percentile for the sample (SBP≤98mmHg and DBP≤60mmHg). Results　The prevalence of low blood pressure for males and females were 2.7% and 7.4%, respectively. The prevalence of low blood pressure for females was higher than that of males (P<0.01). Prevalence of low blood pressure was 7.62%, 6.97%, 4.40%, 3.22%, 2.65%, 1.94% for age groups 15～, 25～, 35～, 45～, 55～, 65～, respectively. The prevalence of low blood pressure was gradually declined with aging. There was large variation in the prevalence of low blood pressure for different minorities. The prevalence of low blood pressure was higher in the southern rather than the northern part of China. Logistic regression showed that the age (OR 0.97, 95%CI 0.97～0.98, per 10 mmHg), BMI (OR 0.80, 95%CI 0.80～0.81), drinking (OR 0.89, 95%CI 0.86～0.93) and heart rate (OR 0.981, 95%CI 0.980～0.982) had reverse relationship with low blood pressure. The sex had a positive relationship with low blood pressure. The prevalence of stroke and myocardial infarction in the population with low blood pressure was lower than that of normal pressure or hypertension (P<0.01). Conclusion　The prevalence and relevant risk factors of low blood pressure in China were various. We speculate that low blood pressure in Chinese population appears to be a normal state of physiology.The difinite influence in health needs cohort studies to confirm.