Objective To investigate prevalence of cervical intraepithelial neoplasia (CIN) among the married women aged 25-54 years in Beijing.Methods With method of cross sectional survey,6339 married women at age of 25 to 54 years were selected randomly in 137 communities of 12 districts or counties in Beijing from March 2007 to September 2008.The cervical smear cytology and high-risk human papillomavirus (HPV) infection of cervical secretion were detected.Women with abnormal cervical cytology were underwent colposcopy and cervical biopsy.Results Among 6339 women,9.58% (607/6339) cases had abnormal cytological results,the colposcopy and cervical biopsy showed the rate of CIN was 5.84% (370/6339) in total selected women and 60.96% (370/607) in women with abnormal cervical cytology,including 4.65% (295/6339) in CIN Ⅰ,0.80% (51/6339) in CIN Ⅱ,0.38% (24/6339) in CIN Ⅲ; 0.06% (4/6339)in early invasive carcinoma (SCC).Based on geographical distribution,the rate of cervical lesions was 4.46% (42/942) in urban areas,6.27% (188/3000) in suburbs and 6.01% (144/ 2397) in outer suburbs (P > 0.05).Conclusion It was found that the incidence of CIN was 5.84% in married women aged 25-54 years in Beijing,which did not show significant prevalence in urban,suburb and outer suburbs region.

Objective To investigate high risk factors associated with cervical intraepithelial neoplasia (CIN) in married women aged 25 to 54 years in Beijing. Methods From Mar. 2007 to Sep.2008, 6339 married women at age of 25 to 54 years were selected randomly by cross sectional survey in a total of 137 communities of 12 districts or counties in Beijing. The interview was carried out with unified questionnaires, gynecological examination. The cervical smear cytology and high-risk human papillomavirus (HR-HPV) infection of cervical secretion were detected. Women with abnormal cervical cytology underwent colposcopy and cervical biopsy. Odd ratio (OR) and 95% confidence interval (CI) of related high risk factors with CIN were studied by logistic regression analysis. Results Among 6339 women, the prevalence rate of CIN including 4 squamous cell carcinoma (SCC) was 5. 90% (374/6339). By multinomial regression analysis, HR-HPV infection (95% CI: 9. 953 - 15.811 ), History of trichomonas vaginitis (95 % CI: 1. 046 -2. 104), oral contraceptives (95% CI: 1. 087 - 1. 806), age less than 45 years old ( 95% CI: 1. 069 -1. 828) were related with CIN. Conclusion Infection rate of HR-HPV is an independent risk factor of CIN, however, the history of trichomonas vaginitis, oral contraceptives and age less than 45 years old are related risk factors of CIN.

Objective To investigate subtype of HPV infection among women at age of 25 to 54 years in Beijing. Methods From Sept. 2006 to Dec. 2008, 5552 reproductive women at age of 25 to 54 years classified into each 5-year as group were screened. Each participant completed a questionnaire and a sample of exfoliated cervical cells for liquid-based cytology and HPV subtype gene testing was performed.Results The overall prevalence of HPV was 6.68% (371/5552). High-risk HPV and Low-risk HPV prevalence were 5.76% (320/5552) and 2.00% (111/5552), respectively. The most common HPV types were HPV16 (2.61%, 145/5552), HPV58 (0. 97%, 54/5552), HPV33 (0.85%, 47/5552), HPV43 (0.74% ,41/5552) and HPV56(0.70% ,39/5552). There were two peaks of HPV prevalence: groups of 30 -34 years and 40 -44 years. Conclusion The most common HPV subtypes in Beijing were HPV 16,58, 33 and 43 and HPV prevalence showed a bi-medal age-specific curve.

Objective To investigate a suitable model for the teaching of medical statistics in postgraduates in general medicine. Methods A total of 225 postgraduates who majored in general medicine in the class of 2017 in Xi'an Medical College were enrolled and randomly divided into study group with 130 postgraduates and control group with 95 postgraduates. The postgraduates in the study group received blending learning (with the application of Wenjuanxing and Duifenyi), and those in the control group received traditional teaching. The two groups were compared in terms of teaching efficiency and degree of satisfaction. Results Compared with the control group, the study group had significantly higher score of objective questions (t=11.2, P<0.01), score of SPSS analysis (t=5.44, P<0.01), total score of exams (t=26.3, P<0.01), and degree of satisfaction (Z=-3.853, P<0.01). Conclusion Blending learning may have a better overall effect than traditional teaching and can help students to achieve stronger abilities of data analysis and SPSS operation. This is an important attempt to change the teaching mode of medical statistics in postgraduates and provides a feasible method for the training of general medical talents with innovative and scientific thinking.

Objective:To explore the application of new teaching techniques and establish a new model for experimental teaching of Medical Statistics for undergraduate students of clinical medicine. Methods:We enrolled 2 classes of students from Xi'an Medical University as research objects, and they were randomized into study group ( n=62) and control group ( n=54). The study group received "traditional demonstration+ blended" learning, while the control group only received traditional teaching. On the premise of balanced comparability, the effects of the two teaching patterns were evaluated from such three aspects as satisfaction questionnaire, teacher's self-evaluation and achievement. SPSS 22.0 was performed for chi-square test, t test and rank sum test. Results:At the end of the semester, the value cognition of statistics in both groups was higher than before class, and the study group [93.5% (58/62)] was higher than that in the control group [68.5% (37/54)] ( χ2=12.20, P<0.001). The overall satisfaction ( Z=-7.05, P<0.001) and the satisfaction with teaching methods ( Z=-3.95, P<0.001) of the study group were significantly higher than those of the control group, with no statistical difference in satisfaction with teaching contents between the two groups ( Z=-0.27, P=0.784). More students in the study group thought that the experimental class deepened their understanding of statistical theory ( χ2=26.87, P<0.001). In the last four experimental classes, the post-test scores of both groups were higher than those of the pre-test, but the pre-test scores and post-test scores of the study group were higher than those of the control group. The performance of software operation in study group was higher than that in control group ( t=8.27 P<0.001). There was no statistical difference in the final test scores between the two groups ( t=0.29, P=0.773). Conclusion:The "traditional demonstration+ blended" learning is more in line with the students' learning pattern, and can better improve students' cognition and satisfaction of the statistics, especially can better cultivate students' team cooperation, expression and the SPSS analysis ability.

Objective To investigate high risk human papillomavirus(HR-HPV)prevalence among married women in Beijing and to study the high risk flactors.nethods During March 2007 to September 2008.a total of 6185 married women sampled from 137 communities in 12 districts were screened bv HR-HPV DNA test and cytogical test.The interview was carried out with unified questionnaires.The databage was set up and twice entered in EpiDam 3.0.After checked up,the data were analyzed in SPSS 15.0.Results (1) The HR-HPV infection rate was 9.89%.The HR-HPV infection rate of the city zone,the suburb and the exurb were 9.34%,10.51% and 9.51% (P>0.05).The HR-HPV infection rate of the native and the oudander were 9.53%,11.30% (P<0.05).(2) The age distribution of HR-HPV infection was that the rate was around 10% among 25 to 44 age groups,which was the highest(11.21%) in 30 to 34 age group;then the rate was descended as the age raising,the rate of 50 to 54 age group was the lowest(7.78%).(3) Multiple logistic regression showed that the related risk factors of HR-HPV infection mainly included 1000 RMB and above of family income per person per month.possessing more than 1 sexual partner of her husband,outlander and hish levels of education.(4) The prevalence of cervical intraepithelial neoplasia(CIN)in HR-HPV positive group wag significantly higher than that in HR-HPV negative group(29.76% vs 3.32%,P<0.01).Conclusions(1)The HR-HPV infection rate among aged 25 to 54 years was 9.9% and there was no significant difference in area distribution.(2)The hish risk population which should strengthen screening was the married bearing-age women with high level of family income,outlander,high levels of education and her husband possessing more than 1 sexual partner.(3)HR-HPV infection is the main risk factor for CIN and cervical cancer.while does not provide a causal relationship with them.The high risk population should be checked regularly to understand the development of HR-HPV infection and CIN incidence.

Objective To understand the HIV/AIDS burden and the disease burden attributed to various risk factors in four countries with different socio-demographic index (SDI) (China, United States, Russia, and Afghanistan) from 1990 to 2019, and to predict the HIV/AIDS attributable disease burden from 2020 to 2029. Methods The 2019 Global Burden of Disease Study data was used to describe and compare the incidence, prevalence, death, and DALYs of HIV/AIDS in the four countries. The standardized DALYs attributed to various risk factors in different age groups of HIV/AIDS in the four countries in 1990 and 2019 were compared. R4.3.0 was used to construct an autoregressive moving average mixed model to predict the attributable disease burden in each country over the next decade. Results Compared with 1990, in 2019, the standardized incidence rate, standardized prevalence rate, standardized mortality rate, and standardized DALYs rate in China and the other two countries, except the United States, showed an increase. People aged 10 to 49 years old were a key group for disease burden, and the main risk factors for disease burden varied among different countries and age groups. The autoregressive moving average mixed model predicted that the main risk factor for Russia in the next decade would be injecting drugs, while unsafe sexual behavior would occur in the other three countries. Conclusion There are differences in disease burden and risk factors among different genders and age groups globally and in the four different SDI countries. Therefore, differences should be fully considered to determine the focus of HIV/AIDS prevention and control and rationally allocate health resources.

BACKGROUND: China bears the biggest atrial fibrillation (AF) burden in the world. However, little is known about the incidence and predictors of AF. This study aimed to investigate the current incidence of AF and its electrocardiographic (ECG) predictors in general community individuals aged over 60 years in China. METHODS: This was a prospective cohort study, recruiting subjects who were aged over 60 years and underwent annual health checkups from April to July 2015 in four community health centers in Songjiang District, Shanghai, China. The subjects were then followed up from 2015 to 2019 annually. Data on sociodemographic characteristics, medical history, and the resting 12-lead ECG were collected. Kaplan-Meier curve was used for showing the trends in AF incidence and calculating the predictors of AF. Associations of ECG abnormalities and AF incidence were examined using Cox proportional hazard models. RESULTS: This study recruited 18,738 subjects, and 351 (1.87%) developed AF. The overall incidence rate of AF was 5.2/1000 person-years during an observation period of 67,704 person-years. Multivariable Cox regression analysis indicated age (hazard ratio [HR], 1.07; 95% confidence interval [CI]: 1.06-1.09; P < 0.001), male (HR, 1.30; 95% CI: 1.05-1.62; P = 0.018), a history of hypertension (HR, 1.55; 95% CI: 1.23-1.95; P < 0.001), a history of cardiac diseases (HR, 3.23; 95% CI: 2.34-4.45; P < 0.001), atrial premature complex (APC) (HR, 2.82; 95% CI: 2.17-3.68; P < 0.001), atrial flutter (HR, 18.68; 95% CI: 7.37-47.31; P < 0.001), junctional premature complex (JPC) (HR, 3.57; 95% CI: 1.59-8.02; P = 0.002), junctional rhythm (HR, 18.24; 95% CI: 5.83-57.07; P < 0.001), ventricular premature complex (VPC) (HR, 1.76; 95% CI: 1.13-2.75, P = 0.012), short PR interval (HR, 5.49; 95% CI: 1.36-22.19; P = 0.017), right atrial enlargement (HR, 6.22; 95% CI: 1.54-25.14; P = 0.010), and pacing rhythm (HR, 3.99; 95% CI: 1.57-10.14; P = 0.004) were independently associated with the incidence of AF. CONCLUSIONS The present incidence of AF was 5.2/1000 person-years in the studied population aged over 60 years in China. Among various ECG abnormalities, only APC, atrial flutter, JPC, junctional rhythm, short PR interval, VPC, right atrial enlargement, and pacing rhythm were independently associated with AF incidence.
Humans ; Male ; Middle Aged ; Aged ; Atrial Fibrillation/epidemiology* ; Prospective Studies ; Incidence ; Atrial Flutter/complications* ; Risk Factors ; China/epidemiology* ; Electrocardiography

Glioblastoma is carcinogenesis of glial cells in central nervous system and has the highest incidence among primary brain tumors. Brain metastasis, such as breast cancer and lung cancer, also leads to high mortality. The available medicines are limited due to blood-brain barrier. Abnormal activation of phosphatidylinositol 3-kinases (PI3K) signaling pathway is prevalent in glioblastoma and metastatic tumors. Here, we characterized a 2-amino-4-methylquinazoline derivative XH30 as a potent PI3K inhibitor with excellent anti-tumor activity against human glioblastoma. XH30 significantly repressed the proliferation of various brain cancer cells and decreased the phosphorylation of key proteins of PI3K signaling pathway, induced cell cycle arrest in G1 phase as well. Additionally, XH30 inhibited the migration of glioma cells and blocked the activation of PI3K pathway by interleukin-17A (IL-17A), which increased the migration of U87MG. Oral administration of XH30 significantly suppressed the tumor growth in both subcutaneous and orthotopic tumor models. XH30 also repressed tumor growth in brain metastasis models of lung cancers. Moreover, XH30 reduced IL-17A and its receptor IL-17RA in vivo. These results indicate that XH30 might be a potential therapeutic drug candidate for glioblastoma migration and brain metastasis.