Measurement of the Chinese's social health and its influencing factors:Based on MIMIC struc-tural equation model / 中国卫生政策研究

In order to measure the current social health status of China,this article uses the method of factor analysis to measure the social health of Chinese population based on the data of CGSS2012,which has a mean score of 3.13 and the factor loading weighted score of 8.03. The social health of residents in economically developed prov-inces such as the six provinces Shanghai, Tianjin, Beijing, Liaoning, Zhejiang and Guangdong ranked among the first to sixth from the bottom,which demonstrated that there was an opposite trend between the people's social health and economy growth. The results of the MIMIC model indicate that the male,married,elder,pension or medical in-sured people and participating in social donations and voluntary activities would have higher social health level. The education and income have a reversed U-shaped relationship with the social health. This article also uses the CLDS2014 data to duplicate the above research, which indicates a robust result. Based on the above findings, this article finally proposes some policy suggestions to promote the social health of Chinese people.

Dynamic Model on Determining the Appropriate Premium Rate for Basic Medical Insurance of Urban Employee and the Calculation on Reduction to Current Premium Rate for Basic Medical Insurance of Urban Employee during the Period of the 13th Five-year Plan / 中国卫生经济

Objective:Study the dynamic model on determining the appropriate premium rate for basic medical insurance of urban employee(BMlUE) and the calculation of reduction to current premium rate for BMIUE in the period of the 13th Five-Year Plan.Methods:It developed a quantitative model to explore the objective.Results:There were 8 parameters all determined the appropriate premium for BMIUE.Conclusion:The results of calculation showed that in the period of the 13th Five-Year Plan,the current premium rate for BMIUE could be cut from 8％ into 7.9％ if keeping the current financial institutional arrangement named individual account and social pooling constant.If cancelling individual account,the current premium rate for BMIUE could be cut from 8％ into 7％.

Analysis on health information extracted from an urban professional population in Beijing / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The assembled data from a population could provide information on health trends within the population. The aim of this research was to extract and know basic health information from an urban professional population in Beijing.</p><p><b>METHODS</b>Data analysis was carried out in a population who underwent a routine medical check-up and aged > 20 years, including 30 058 individuals. General information, data from physical examinations and blood samples were collected in the same method. The health status was separated into three groups by the criteria generated in this study, i.e., people with common chronic diseases, people in a sub-clinic situation, and healthy people. The proportion of both common diseases suffered and health risk distribution of different age groups were also analyzed.</p><p><b>RESULTS</b>The proportion of people with common chronic diseases, in the sub-clinic group and in the healthy group was 28.6%, 67.8% and 3.6% respectively. There were significant differences in the health situation in different age groups. Hypertension was on the top of list of self-reported diseases. The proportion of chronic diseases increased significantly in people after 35 years of age. Meanwhile, the proportion of sub-clinic conditions was decreasing at the same rate. The complex risk factors to health in this population were metabolic disturbances (61.3%), risk for tumor (2.7%), abnormal results of morphological examination (8.2%) and abnormal results of lab tests of serum (27.8%).</p><p><b>CONCLUSIONS</b>Health information could be extracted from a complex data set from the heath check-ups of the general population. The information should be applied to support prevention and control chronic diseases as well as for directing intervention for patients with risk factors for disease.</p>

Effects of caloric vestibular stimulation on serotoninergic system in the media vestibular nuclei of guinea pigs / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Anatomic and electrophysiological studies have revealed that the neurons located in the media vestibular nuclei (MVN) receive most of the sensory vestibular input coming from the ipsilateral labyrinth and the responses of MVN neurons to caloric stimulation directly reflect changes in primary vestibular afferent activity. The aim of this study was to clarify the intrinsic characteristics of serotonin (5-hydroxytryptamine, 5-HT) release in the MVN during the period of vertigo induced by caloric stimulation.</p><p><b>METHODS</b>We used an in vivo microdialysis technique to examine the effects of caloric stimulation on the serotoninergic system in MVN. Twenty four guinea pigs were randomly divided into the groups of irrigation of the ear canal with hot water (n = 6), ice water (n = 6) and 37 degrees C water (n = 4), and the groups of irrigation of the auricle with hot water (n = 4) and ice water (n = 4), according to different caloric vestibular stimulation. We examined the animal's caloric nystagmus with a two-channel electronystagmographic recorder (ENG), and meanwhile examine serotonin (5-hydroxytryptamine, 5-HT) level in the MVN with microdialysis technique after caloric stimulation.</p><p><b>RESULTS</b>In the caloric test the hot water (44 degrees C) irrigation of the right external auditory canal induced horizontal nystagmus towards the right side lasting about 60 seconds and the ice water irrigation of the right external auditory canal induced it towards the left side lasting for about 90 seconds. No nystagmus was induced by 37 degrees C water irrigation of the external ear canal. Therefore, it was used as a negative control stimulation to the middle ear. The MVN 5-HT levels significantly increased in the first 5-minute collecting interval and increased to 254% and 189% of the control group in the second collecting interval in response to caloric vestibular stimulation with ice water and hot water respectively. The serotonin release was not distinctly changed by the irrigation of the auricle with ice water or hot water.</p><p><b>CONCLUSIONS</b>Neither somato-sensory stimulation of the middle ear nor nonspecific cold or hot stress affects the serotonin release. The rise of 5-HT in MVN may be involved in the mechanism of vertigo induced by caloric stimulation.</p>

Clinical significance of vibration-induced nystagmus in patients with unilateral peripheral vestibular disorders / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To clarify the clinical significance of vibration-induced nystagmus (VIN) and to calculate the sensitivity and the specificity of the vibration test.</p><p><b>METHODS</b>One hundred and twelve patients with unilateral peripheral vestibular disorders and 30 normal subjects were enrolled into this study. However, patients with spontaneous nystagmus were excluded. Vibratory stimuli (approximately 92Hz) were presented to the mastoids and the forehead. Patients and normal subjects also underwent head shaking testing and caloric testing.</p><p><b>RESULTS</b>Of the 112 patients, 91 (81%) showed VIN which were mainly horizontal. VIN was more frequently evoked on the mastoids than on the forehead. In the majority of patients (76 cases), the direction of VIN was toward the healthy side, whereas patients with Meniere's disease (15 cases), showed nystagmus toward the affected side. None of 30 normal subjects showed VIN. Whereas, HSN was found in 70 (63%) patients and 9 (30%) in normal subjects. Of 112 patients, 10 showed a canal paresis (CP) value of caloric test less than 25% ,while 32 with a CP value between 25% and 40%, 48 with a CP value between 40% and 70%, and 22 with a CP value more than 70%. It is notable that with increasing canal paresis value on caloric testing, VIN was more likely to be evoked.</p><p><b>CONCLUSIONS</b>VIN testing is a simple, non-invasive and well-tolerated clinical test that indicates unilateral peripheral vestibular dysfunction. VIN testing had greater sensitivity and the specificity than HSN testing in the diagnosis of unilateral peripheral vestibular disorders.</p>

Characteristics of vestibular-ocular reflex in guinea pigs during eccentric sinusoidal rotation / 中国应用生理学杂志

<p><b>AIM</b>To observe the characteristics of vestibular-ocular reflex (VOR) of guinea pigs during eccentric sinusoidal rotation in different frequencies and radius, and compare them with that during axis rotation, obtain the parameters which reflect otolith functions, and provide experimental evidence for the establishment of otolith function test.</p><p><b>METHODS</b>Guinea pigs were placed in axis of rotation and in an heading out eccentric position apart from rotation axis of 330 mm, 660 mm and 990 mm respectively, their VOR were recorded and compared under stimulus of sinusoidal rotations in the frequencies of 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6 Hz with the peak velocity of 60 degrees/s in each position.</p><p><b>RESULTS</b>Both frequency and eccentric radius had significant effects on the VOR gain, it increased with the increase of frequencies and radius. The largest increase of the gain occurred at the frequencies of 0.3 and 0.4Hz, and no significant changes were observed above these frequencies.</p><p><b>CONCLUSION</b>Enhancement ratio (ER) of VOR gain can reflect the extent of its increase with radius, and can be used as an index of otolith function, the stimulus profile of eccentric rotation at frequency of 0.4Hz and radius of 990mm is recommended as the stimulus profile for the otolith function test.</p>

Experience of Congenital Choledochal Cyst in Adults: Treatment, Surgical Procedures and Clinical Outcome in the Second Affiliated Hospital of Harbin Medical University

This study was undertaken to analyze and evaluate the diagnosis and principal treatment methods for congenital choledochal cyst, focusing on various surgical procedures and clinical outcome. A comprehensive, retrospective study was conducted on 72 adult patients who presented with choledochal cyst from 1985 to 2002. Surgical procedures were cyst excision with hepaticojejunostomy in 25 cases for type I or type IV-B, extrahepatic cyst excision with hepaticojejunostomy in 8 cases for type IV-A, extrahepatic cyst excision with modified hepaticojejunostomy in 2 cases for type IV-B, non-cyst excision with or without hepaticojejunostomy in 27 cases for types I, II, IV-A, IV-B. The early postoperative morbidity and mortality rate were 16.1% (9/62) and 6.5% (4/62) respectively, and the complication rate related to surgical procedure was 30.6% (19/62). The incidence of cholangiocarcinoma with non-cyst excision or non-operated congenital choledochal cyst was 10.8% (4/37). One patient died of primary hepatocellular carcinoma after cyst excision with hepatojejunostomy. In conclusion, our results showed that complete exci-sion of choledochal cyst for types I, II, and IV-B and complete excision of extra-hepatic choledochal cyst from the hepatic hilum in type IV-A with hepaticojejunostomy or modified hepaticojejunostomy are the treatment of choice for choledochal cyst in adult patients.