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1.
J Int Med Res ; 45(2): 798-807, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28345422

RESUMO

Objective To evaluate factors associated with preference for caesarean or vaginal delivery among pregnant Chinese nulliparous and parous women. Methods In this cross-sectional study, a self-administered questionnaire was used to collect information on sociodemographic characteristics, preference/reasons for delivery mode, and knowledge of delivery complications. Results Of the 450 participants, 85 (18.9%) reported a preference for caesarean section (CS) pre-partum. Compared with women who would prefer a vaginal delivery, nulliparous women who preferred CS were more likely to be: ≥35 years; have no medical insurance; have had two or more pregnancies; have access to only one source of information about birthing options; knowledge of the complications of vaginal delivery and think doctors have no right to decide the type of delivery. For parous women who preferred CS, they were more likely to have had a previous caesarean delivery and live outside Beijing. Conclusions From this study conducted at a large, maternity centre in Beijing, the proportion of pregnant women with preference pre-partum for CS was moderate and their reasons were varied.


Assuntos
Cesárea/psicologia , Comportamento de Escolha , Conhecimentos, Atitudes e Prática em Saúde , Parto/psicologia , Adulto , Pequim , Estudos Transversais , Feminino , Humanos , Paridade/fisiologia , Gravidez , Inquéritos e Questionários
2.
BMC Infect Dis ; 16(1): 526, 2016 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-27686152

RESUMO

BACKGROUND: Longitudinal studies of female sex workers (FSWs) are vulnerable to loss to follow-up (LTFU) due to this population's high mobility and low willingness to self-identify as FSWs. LTFU in cohort studies is a critical problem and may lead to bias in estimation of incidence and exposure-outcome associations. The aim of this study was to analyze LTFU and HIV incidence and their associated factors in a 9-year longitudinal study of FSWs in Kaiyuan, Yunnan Province, China. METHODS: This analysis includes all HIV-1 seronegative FSWs who were recruited into a prospective study in Kaiyuan with at least one follow-up visit after enrollment from March 2006 to November 2013. Participants were visited in 6-month intervals after enrollment. Their demographic and behavioral data and blood specimens for HIV and sexual transmitted disease testing were collected at enrollment and at each follow-up visit. The administrative censoring date was December 31, 2014. Participants were considered LTFU if their last visit occurred 1 year or more before the administrative censoring date. Univariate and multivariable Cox regression models with time-independent variables were used to investigate the hazard ratios (HR) and 95 % confidence intervals (CI) of the factors associated with LTFU and HIV acquisition. RESULTS: Of the 1158 FSWs, 950 were defined as LTFUs (LTFU rate: 29.69, 95 % CI: 27.85-31.62 per 100 person years [PYs]), and 33 experienced HIV seroconversions (cumulative incidence: 1.06, 95 % CI: 0.74-1.47 per 100 PYs). After adjustment, we found that FSWs who used drugs were less likely to be LTFU compared with non-drug users (adjust hazard ratio [AHR]= 0.62, 95 % CI: 0.51-0.76), though FSWs who used drug were associated with a higher risk of HIV acquisition (AHR = 3.06, 95 % CI: 1.49-6.30). Also, FSWs who always used condoms with clients in the previous month were associated with a higher risk of LTFU (AHR = 1.51, 95 % CI: 1.15-1.97), while they were negative associated with new HIV infection (AHR = 0.28, 95 % CI: 0.12-0.61). CONCLUSIONS: A high LTFU rate exists in the Kaiyuan FSW cohort study, and LTFU did not occur at random. Participants retained in the cohort tended to be at higher risk of HIV acquisition, which may result in an overestimate of the incidence of HIV infection from the Kaiyuan FSW cohort.

3.
Bioinformatics ; 32(11): 1643-51, 2016 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-26635139

RESUMO

MOTIVATION: Identification of altered pathways that are clinically relevant across human cancers is a key challenge in cancer genomics. Precise identification and understanding of these altered pathways may provide novel insights into patient stratification, therapeutic strategies and the development of new drugs. However, a challenge remains in accurately identifying pathways altered by somatic mutations across human cancers, due to the diverse mutation spectrum. We developed an innovative approach to integrate somatic mutation data with gene networks and pathways, in order to identify pathways altered by somatic mutations across cancers. RESULTS: We applied our approach to The Cancer Genome Atlas (TCGA) dataset of somatic mutations in 4790 cancer patients with 19 different types of tumors. Our analysis identified cancer-type-specific altered pathways enriched with known cancer-relevant genes and targets of currently available drugs. To investigate the clinical significance of these altered pathways, we performed consensus clustering for patient stratification using member genes in the altered pathways coupled with gene expression datasets from 4870 patients from TCGA, and multiple independent cohorts confirmed that the altered pathways could be used to stratify patients into subgroups with significantly different clinical outcomes. Of particular significance, certain patient subpopulations with poor prognosis were identified because they had specific altered pathways for which there are available targeted therapies. These findings could be used to tailor and intensify therapy in these patients, for whom current therapy is suboptimal. AVAILABILITY AND IMPLEMENTATION: The code is available at: http://www.taehyunlab.org CONTACT: jhcheong@yuhs.ac or taehyun.hwang@utsouthwestern.edu or taehyun.cs@gmail.com SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.


Assuntos
Mutação , Neoplasias , Análise Mutacional de DNA , Redes Reguladoras de Genes , Genômica , Humanos
4.
Med Educ ; 49(1): 48-59, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25545573

RESUMO

CONTEXT: With the globalisation of medicine, the role of international medical graduates (IMGs) has expanded. Nonetheless, the experiences of native-born IMGs remain under-researched. In Taiwan, public controversy has unfolded around IMGs educated in Poland, calling into question the meaning(s) of equality in policy and medicine. In focusing on the return of IMGs to their countries of origin, this study adds to the growing literature concerning equality and globalisation in medical education. OBJECTIVES: The primary research aim was to analyse how stakeholders in the IMG debate use equality in their arguments. The authors set out to frame the dispute within the recent history of Taiwanese medical governance. An overarching objective was to contribute a critical, historical view of how discourses of globalisation and equality construct different policy approaches to international medical education. METHODS: The authors performed a critical discourse analysis of a public policy dispute in Taiwan, assembling an archive from online interactions, government reports and news articles. Coding focused on stakeholders' uses of equality to generate broader discourses. RESULTS: International and domestic Taiwanese students conceived of equality differently, referencing both 'equality of opportunity' and 'equality of outcome' within localisation and globalisation frameworks, respectively. The dominance of localisation discourse is reflected in hostile online rhetoric towards Poland-educated IMGs. CONCLUSIONS: Rhetorical disagreements over equality in medical education trace shifting state policies, from earlier attempts to remove barriers for IMGs to the present-day push to regulate IMGs for acculturation and quality assurance. The global Internet had a double-sided influence, facilitating both democratic political mobilization and the spread of hate speech. The policy debate in Taiwan mirrors discourses in Canada, where IMGs are likewise conceived either as globally competent physicians or as lacking in merit and technical competence. Future research could investigate the discursive formation and evidential basis of policies regulating international medical education.


Assuntos
Atitude do Pessoal de Saúde , Educação Médica/normas , Médicos Graduados Estrangeiros , Aculturação , Médicos Graduados Estrangeiros/psicologia , Médicos Graduados Estrangeiros/normas , Saúde Global/normas , Humanos , Internato e Residência , Política Pública , Estudantes de Medicina/psicologia , Taiwan
5.
Biomed Environ Sci ; 27(11): 858-71, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25374019

RESUMO

OBJECTIVE: To understand drug resistance prevalence among treatment-failure and treatment-naïve HIV-positive individuals in China. METHODS: We searched five electronic databases (Wanfang, CNKI, CQVIP, SinoMed, and Pubmed) for studies of HIV drug resistance. Random-effects models were carried out to estimate the prevalence of drug resistance among treatment-failure and treatment-naïve individuals, respectively. RESULTS: The estimated nationwide rates of HIV drug resistance to any-class drugs among treatment-failure and treatment-naïve individuals were 57% (95% CI: 49%-65%) and 3.23% (95% CI: 2.47%-4.07%), respectively. Among the drug classes, the prevalence of resistance to PIs was low (1.45%; 95% CI: 0.73%-2.33%) in treatment-failure individuals, although high rates of resistance to NNRTIs (54%; 95% CI: 45%-63%) and NRTIs (40%; 95% CI: 32%-49%) were found. Resistance to any-class drugs, NNRTIs and NRTIs manifested regional differences, but resistance to PIs did not. Positive correlations were observed between resistance to NNRTIs and NRTIs among treatment-failure and treatment-naïve individuals, respectively. CONCLUSION: The prevalence of HIV drug resistance to NNRTIs and NRTIs among treatment-failure individuals was high. In contrast, the prevalence of drug resistance among treatment-naïve individuals was low. The epidemics of drug resistance matched current treatment strategies and interventions in China. Surveillance for HIV drug resistance is necessary to assess the sustainability and durability of current treatment regimens.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Farmacorresistência Viral , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Fármacos Anti-HIV/administração & dosagem , China , Farmacorresistência Viral/genética , Humanos , Prevalência , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Tempo , Falha de Tratamento
6.
Acad Med ; 89(11): 1533-9, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25250745

RESUMO

PURPOSE: Hospital accreditation has become a global trend for improving the quality of health care services. In Taiwan, nearly all hospitals are accredited. However, there is a paucity of literature on the effects of hospital accreditation on medical students and the universal applicability of hospital accreditation as developed in the West. The purpose of this study was to investigate the effects of hospital accreditation on medical students in Taiwan. METHOD: From 2010 to 2012, the authors conducted semistructured interviews with 34 senior, clinical year students at 11 different medical schools in Taiwan. Following a grounded theory approach, the authors transcribed and analyzed the transcripts concurrently with data collection in order to identify emergent themes. RESULTS: Aside from the intended positive effects of hospital accreditation, this study revealed several unintended impacts on medical students, including decreased clinical learning opportunities, increased trivial workload, and violation of professional integrity. Taiwanese students expressed doubt and frustration concerning the value of hospital accreditation and reflected on the cultural and systemic context in which accreditation takes place. Their commentary addressed the challenges associated with the globalization of hospital accreditation processes. CONCLUSIONS: This study suggests that, beyond the improvement of patient safety and quality assurance, medical educators must recognize the unintended negative effects of hospital accreditation on medical education and take into account differences in culture and health care systems amid the globalization of medicine.


Assuntos
Acreditação/normas , Hospitais/normas , Garantia da Qualidade dos Cuidados de Saúde , Estudantes de Medicina/estatística & dados numéricos , Acreditação/estatística & dados numéricos , Adulto , Estudos Transversais , Educação de Graduação em Medicina/métodos , Feminino , Hospitais/estatística & dados numéricos , Humanos , Entrevistas como Assunto , Masculino , Segurança do Paciente , Pesquisa Qualitativa , Medição de Risco , Taiwan , Adulto Jovem
7.
BMC Public Health ; 14: 831, 2014 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-25113245

RESUMO

BACKGROUND: To estimate the incidence and risk factors for mortality in HIV-1-infected patients in China. METHODS: Information on AIDS-related deaths was collected from the Chinese Center for Disease Control and Prevention's Disease Surveillance Information Reporting System and AIDS Prevention and Control Information System. RESULTS: A total of 379,348 HIV cases were recorded in the databases from 2006. Among those, 138,288 patients were reported as having developed AIDS and 72,616 (19%) died of AIDS after data was extracted from the databases in January 2011. Mortality was higher among those patients aged 50 years old or older (AOR: 3.41, CI: 1.47-7.91) who had been infected by intravenous drug use (AOR: 1.65, CI: 1.28-2.14) or blood transfusion/donation (AOR: 2.18: 1.18-3.99). Compared to patients who had not initiated highly active antiretroviral therapy (HAART), those who had initiated HAART were more likely to have a long interval of time between infection confirmation and AIDS-related death. CONCLUSIONS: The effective reduction of AIDS mortality could be improved through timely treatment.


Assuntos
Síndrome da Imunodeficiência Adquirida/mortalidade , Terapia Antirretroviral de Alta Atividade , Doadores de Sangue , Transfusão de Sangue , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Síndrome da Imunodeficiência Adquirida/etiologia , Síndrome da Imunodeficiência Adquirida/virologia , Adulto , Centers for Disease Control and Prevention, U.S. , China/epidemiologia , Estudos Transversais , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/etiologia , Infecções por HIV/mortalidade , Infecções por HIV/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Abuso de Substâncias por Via Intravenosa/complicações , Estados Unidos , Adulto Jovem
8.
Geospat Health ; 8(2): 429-35, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24893019

RESUMO

Influenza poses a constant, heavy burden on society. Recent research has focused on ecological factors associated with influenza incidence and has also studied influenza with respect to its geographic spread at different scales. This research explores the temporal and spatial parameters of influenza and identifies factors influencing its transmission. A spatial autocorrelation analysis, a spatial-temporal cluster analysis and a spatial regression analysis of influenza rates, carried out in Jiangsu province from 2004 to 2011, found that influenza rates to be spatially dependent in 2004, 2005, 2006 and 2008. South-western districts consistently revealed hotspots of high-incidence influenza. The regression analysis indicates that railways, rivers and lakes are important predictive environmental variables for influenza risk. A better understanding of the epidemic pattern and ecological factors associated with pandemic influenza should benefit public health officials with respect to prevention and controlling measures during future epidemics.


Assuntos
Sistemas de Informação Geográfica , Influenza Humana/epidemiologia , China/epidemiologia , Epidemias/estatística & dados numéricos , Geografia Médica , Humanos , Influenza Humana/etiologia , Influenza Humana/transmissão , Fatores de Risco , Análise Espaço-Temporal
9.
Acad Med ; 89(6): 944-50, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24871248

RESUMO

PURPOSE: To compare stakeholders' constructs of medical professionalism in two Chinese cultural contexts. METHOD: Between November and December 2011, the authors adopted the nominal group technique (NGT) to elicit professional competencies valued by 97 medical education stakeholders at Peking Union Medical College (PUMC) in Beijing, China. Participants categorized the professional competencies according to an existing framework developed at National Taiwan University College of Medicine (NTUCM) in Taipei, Taiwan; they also modified and developed new categories for the framework. The authors analyzed NGT transcripts to construct a visual medical professionalism framework for PUMC and compared it with that of NTUCM. RESULTS: The Chinese stakeholders endorsed seven of the eight competencies identified in the Taiwanese framework: clinical competence, communication, ethics, humanism, excellence, accountability, and altruism. For the eighth competency, integrity, the Chinese participants preferred the term "morality." They also added the competencies of teamwork, self-management, health promotion, and economic considerations. Both frameworks differed from typical Western professionalism frameworks in emphasizing morality and the integration of social and personal roles. CONCLUSIONS: The resemblance between the Chinese and Taiwanese frameworks in the prominence of morality and integrity suggests the influence of Confucianism. The exclusively Chinese articulations of teamwork, health promotion, and economic considerations appear to derive from social, political, and economic factors unique to Mainland China. This study demonstrates the dynamic influence of cultural values, social history, and health care systems on the construction of medical professionalism frameworks and calls for further research to adapt global frameworks to fit specific local contexts.


Assuntos
Características Culturais , Enfermeiras e Enfermeiros/normas , Médicos/normas , Competência Profissional , Valores Sociais , Estudantes de Medicina , Estudantes de Enfermagem , Altruísmo , China , Cidades , Competência Clínica , Comunicação , Comparação Transcultural , Ética Médica , Ética em Enfermagem , Promoção da Saúde , Humanos , Enfermeiras e Enfermeiros/psicologia , Médicos/ética , Médicos/psicologia , Responsabilidade Social , Estudantes de Medicina/psicologia , Estudantes de Enfermagem/psicologia , Taiwan
10.
PLoS One ; 9(1): e83487, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24416167

RESUMO

OBJECTIVE: This study aimed to describe the spatial and temporal trends of Shigella incidence rates in Jiangsu Province, People's Republic of China. It also intended to explore complex risk modes facilitating Shigella transmission. METHODS: County-level incidence rates were obtained for analysis using geographic information system (GIS) tools. Trend surface and incidence maps were established to describe geographic distributions. Spatio-temporal cluster analysis and autocorrelation analysis were used for detecting clusters. Based on the number of monthly Shigella cases, an autoregressive integrated moving average (ARIMA) model successfully established a time series model. A spatial correlation analysis and a case-control study were conducted to identify risk factors contributing to Shigella transmissions. RESULTS: The far southwestern and northwestern areas of Jiangsu were the most infected. A cluster was detected in southwestern Jiangsu (LLR = 11674.74, P<0.001). The time series model was established as ARIMA (1, 12, 0), which predicted well for cases from August to December, 2011. Highways and water sources potentially caused spatial variation in Shigella development in Jiangsu. The case-control study confirmed not washing hands before dinner (OR = 3.64) and not having access to a safe water source (OR = 2.04) as the main causes of Shigella in Jiangsu Province. CONCLUSION: Improvement of sanitation and hygiene should be strengthened in economically developed counties, while access to a safe water supply in impoverished areas should be increased at the same time.


Assuntos
Disenteria Bacilar/epidemiologia , Análise Espaço-Temporal , China/epidemiologia , Geografia , Humanos , Incidência , Fatores de Risco , Estações do Ano , Fatores de Tempo
11.
ScientificWorldJournal ; 2014: 760734, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25580461

RESUMO

The preventative effects of antiretroviral therapy for people with HIV have been debated since they were first raised. Models commenced studying the preventive effects of treatment in the 1990s, prior to initial public reports. However, the outcomes of the preventive effects of antiretroviral use were not consistent. Some outcomes of dynamic models were based on unfeasible assumptions, such as no consideration of drug resistance, behavior disinhibition, or economic inputs in poor countries, and unrealistic input variables, for example, overstated initiation time, adherence, coverage, and efficacy of treatment. This paper reviewed dynamic mathematical models to ascertain the complex effects of ART on HIV transmission. This review discusses more conservative inputs and outcomes relative to antiretroviral use in HIV infections in dynamic mathematical models. ART alone cannot eliminate HIV transmission.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Modelos Biológicos , Terapia Antirretroviral de Alta Atividade , Farmacorresistência Viral , Infecções por HIV/transmissão , Humanos , Assunção de Riscos , Resultado do Tratamento
12.
Med Teach ; 35(10): e1531-6, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23795988

RESUMO

BACKGROUND: Medical professionalism is valued globally. However, Western frameworks of medical professionalism may not resonate with the cultural values of non-Western countries. AIMS: This study aims to formulate a professionalism framework for healthcare providers at Peking Union Medical College (PUMC) in China. METHODS: This study was conducted using nominal group technique (NGT) in a convenient sample of 97 participants at PUMC in November and December, 2011. Participants were sorted into 13 occupational groups, each discussing and ranking categories of medical professionalism. The authors compared the results of each group's ranked categories and analyzed meeting transcripts. RESULTS: A pre-existing framework provided eight categories: clinical competence, communication, ethics, humanism, excellence, accountability, altruism, and integrity. Participants created four categories: teamwork, self-management, health promotion, and economic considerations. Clinical competence and communication ranked highly among most groups. Only hospital volunteers and resident physicians included self-management in their top-ranked items. Only public health experts prioritized health promotion. Standardized patients were unique in mentioning "economic considerations." Medical students and attending physicians both referenced Chinese traditional values. CONCLUSIONS: Our study was able to document effects of East Asian cultural influences and conflicts between Western ideologies and Asian traditions that led to divergent interpretations of medical professionalism.


Assuntos
Atitude do Pessoal de Saúde , Pessoal de Saúde/psicologia , Papel Profissional , Adulto , Altruísmo , China , Competência Clínica , Comunicação , Ética Clínica , Feminino , Promoção da Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Relações Médico-Paciente
13.
J Med Virol ; 85(3): 425-32, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23341370

RESUMO

Hemodialysis patients are at risk for hepatitis C and B virus infections. This study investigated the prevalences and risk factors of HCV and HBV infection and the distribution of HCV genotypes among hemodialysis patients and their spouses. From August to November 2011, a cross-sectional study was conducted on 20 hemodialysis units in Beijing to investigate prevalences and risk factors for markers of HCV and HBV among 2,120 patients and 409 spouses. In hemodialysis patients, prevalences of anti-HCV, HCV RNA, and hepatitis B surface antigen (HBsAg) were 6.1%, 4.6%, and 7.0%, respectively. The prevalence of HCV antibodies among spouses was 0.5%, of HCV RNA was 0.2%, and of HBsAg was 4.2%. Risk factors for HCV infection were dialysis duration, blood transfusion, and attending more than one dialysis unit. HBV infection was independently associated with age, family member with hepatitis infection, gender, and surgery. The predominant HCV genotypes were 1b (89.0%) and 2a (7.7%), and genotypes 3a, 3b, and 6a were each 1.1%. A significant decrease in HCV and HBV prevalences in Chinese dialysis units showed that infection control measures were effective. However, because nosocomial transmissions persist, strict adherence to infection control measures should be emphasized to reduce the risk of transmission.


Assuntos
Hepatite B/epidemiologia , Hepatite B/transmissão , Hepatite C/epidemiologia , Hepatite C/transmissão , Diálise Renal/efeitos adversos , Cônjuges , Adulto , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Feminino , Genótipo , Hepacivirus/classificação , Hepacivirus/genética , Hepacivirus/isolamento & purificação , Antígenos de Superfície da Hepatite B/sangue , Anticorpos Anti-Hepatite C/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , RNA Viral/sangue , Fatores de Risco
14.
Hemodial Int ; 17(4): 532-41, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23072424

RESUMO

Hepatitis C virus infection is a perennial concern for hemodialysis units because the prevalence of hepatitis C is significantly higher there than in the general population. Through a systematic review and meta-analysis, we aim to assess the incidence rate of hepatitis C virus infection in hemodialysis units and explore its potential risk factors. Five electronic databases were used to search articles from 1990 to 2012, including PubMed, Embase, China National Knowledge Infrastructure, Chinese Biomedical Literature Database, and Wanfang. A random-effects analysis was used to estimate the overall incidence rate of hepatitis C virus infection. A subgroup analysis and meta-regression analysis were conducted to explore factors associated with heterogeneity between studies. Twenty-two eligible articles were found, including 23 incidence rate estimates. The overall incidence rate of hepatitis C virus infection was 1.47 per 100 patient-years (95% confidence interval [CI] 1.14 to 1.80). In the subgroup analysis, the pooled incidence rate was 4.44 (CI 2.65, 6.23) per 100 patient-years in the developing world and 0.99 (CI 0.66, 1.29) per 100 patient-years in the developed world. [Correction added on 2 November 2012, after first online publication: Pooled incidence rate in the developed world has been changed.] In addition, in hemodialysis units with higher prevalence, the incidence rate of hepatitis C virus infection also tended to be higher. Meta-regression analysis showed that the country's development level and initial HCV prevalence combined could explain 67.91% of the observed heterogeneity. The incidence rate of hepatitis C virus infection among patients on hemodialysis was significantly high. Efforts should be taken to control hepatitis C virus infection in hemodialysis units, especially in developing countries.


Assuntos
Hepatite C/epidemiologia , Diálise Renal/estatística & dados numéricos , Feminino , Hepatite C/etiologia , Humanos , Masculino , Prevalência , Diálise Renal/efeitos adversos , Fatores de Risco
15.
Biomed Environ Sci ; 25(6): 706-10, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23228841

RESUMO

OBJECTIVE: To survey the prevalence and risk factors of HSV-2 among Chinese and Vietnamese female sex workers (FSW) in the border county of Hekou, Yunnan Province, China. METHODS: A cross-sectional survey was conducted on demographics, sexual behavior, medical history, and drug use among FSWs. Laboratory samples were obtained to test for HSV-2 and other STIs such as HIV, Syphilis, Trichomonas vaginalis, Neisseria gonorrhoeae, Chlamydia trachomatis, Bacterial vaginosis, and Yeast infections. Cervicitis and genital warts were also diagnosed. RESULTS: Of the 345 FSWs who participated in this study, 112 (32.5%) were ethnic Chinese and 233 (67.5) were Vietnamese. Among FSWs in Hekou, the prevalence rates were 58.3% for HSV-2, 5.5% for HIV, and 4.1% for bacterial vaginosis (BV). Age<21 (OR: 0.5; 95% CI: 0.3, 0.8), duration of commercial sex work≤3 months (OR: 0.5; 95% CI: 0.3, 0.8), oral and vaginal sex with the last client (as opposed to only vaginal sex) (OR: 1.6; 95% CI: 1.0, 2.7), HIV (OR: 11.4; 95% CI: 1.5, 87.2), and bacterial vaginosis (BV) (OR: 5.6; 95% CI: 1.2, 26.9) were significantly correlated with HSV-2 infection. CONCLUSION: Multivariate analysis showed that several factors were significantly correlated with the high prevalence of HSV-2 in FSWs in the border area between China and Vietnam. Further studies and interventions are needed for HSV-2 epidemiology in the border area.


Assuntos
Herpes Genital/epidemiologia , Herpesvirus Humano 2/isolamento & purificação , Profissionais do Sexo , Adolescente , China/epidemiologia , Estudos Transversais , Feminino , Humanos , Fatores de Risco , Vietnã/epidemiologia , Adulto Jovem
16.
Geospat Health ; 7(1): 63-72, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23242681

RESUMO

Spatial distribution rules and risk factors for syphilis were studied in Jiangsu province, People's Republic of China during 2005 and 2009. Trend surface analysis, spatial autocorrelation analysis and spatio-temporal clustering were applied with the incidence rates of the various counties in the province to determine spatial distribution rules and risk factors. Syphilis was found to be most severe in the southern region of the province where many counties could be shown to be hotspots with positive autocorrelation. Clusters were detected in the south-western region of Jiangsu with the county-level city of Yixing as the centre. Temperature, distance from railways and highways, and the normalised difference vegetation index were determined as supporting variables with regard to the transmission of the disease by both univariate and multivariate spatial correlation analyses. Interventions, including health education and awareness campaigns, should be strengthened throughout the province targeting the south-western areas, especially the clusters and hotspots detected in order to improve the situation.


Assuntos
Profissionais do Sexo/estatística & dados numéricos , Sífilis/epidemiologia , Migrantes/estatística & dados numéricos , Meios de Transporte/estatística & dados numéricos , China/epidemiologia , Sistemas de Informação Geográfica , Humanos , Incidência , Distribuição de Poisson , Densidade Demográfica , Prevalência , Ferrovias/estatística & dados numéricos , Análise de Regressão , Fatores de Risco , Estações do Ano , Conglomerados Espaço-Temporais , Sífilis/prevenção & controle , Sífilis/transmissão , Meios de Transporte/métodos
17.
Chin Med J (Engl) ; 125(11): 1857-61, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22884042

RESUMO

BACKGROUND: Men who have sex with men (MSM) have been impacted by HIV and now as an important driver of the HIV/AIDS epidemic in China. This study collected HIV sentinel surveillance system data on the MSM population to describe the characteristics and trends of the HIV epidemic among MSM in China from 2003 to 2011. METHODS: Data on HIV prevalence and risk behaviors from 2003 to 2011 were obtained from the national HIV sentinel surveillance database. RESULTS: MSM sentinel surveillance data for 2011 showed that proportions of MSM who consistently used condoms during anal sex in the last six months and at last anal sex encounter were 43.3% and 74.1%, respectively. Between 2005 and 2011 there were no significant changes in the proportion of consistent condom use. The proportion of MSM who had multiple male sex partners in the last six months increased. Overall HIV prevalence over the years showed a rising trend from 0.9% in 2003 to 6.3% in 2011. The syphilis antibody positive rate was 7.8% in 2011. In addition, the proportion of MSM in heterosexual marriages was rising, AIDS awareness was also increasing, and the proportion of MSM who had taken an HIV test in the last year and was aware of the results rose. The proportion who had received intervention services in the last year stabilized. CONCLUSIONS: HIV prevalence in MSM populations is rapidly and widely distributed. MSM who are in heterosexual marriages may be a bridge group transmitting HIV to their heterosexual partners. The risky sexual behavior among MSM will remain a serious and important driver of China's AIDS epidemic over the next period of time. Intervention need to be strengthened, as does the effective implementation of measures to control AIDS and prevent it from spreading further.


Assuntos
Infecções por HIV/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Adolescente , Adulto , China/epidemiologia , Infecções por HIV/diagnóstico , Infecções por HIV/prevenção & controle , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
18.
Chin Med J (Engl) ; 125(16): 2819-25, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22932073

RESUMO

BACKGROUND: Previous studies have shown evidence of health-related risk behaviors among women who have sex with women (WSW), such as sex with men, multiple bisexual partners, and drug use. Women who have sex with women have also been known to avoid routine physical examinations and conceal their same-sex history from physicians, which can affect their ability to receive an accurate diagnosis and treatment. No previous research has targeted women who have sex with women in China. We sought to describe women who have sex with women in China and explore risk factors for their reproductive tract infections (RTI)/sexually transmitted infections (STI). METHODS: Participants were recruited through outreach in venues and online for a cross-sectional study. Data were collected using interviews and laboratory tests. RESULTS: We recruited 224 women who have sex with women. In the year preceding their participation in the study, 92% (206/224) of women reported sexual relations with women. The RTI rates were: gonorrhea (15.8%), chlamydia (3.5%), syphilis (0.5%), bacterial vaginosis (14.4%), hepatitis B virus (HBV) (0.9%), hepatitis C virus (HCV) (0.5%), and candidiasis (6.9%). No HIV or herpes simplex virus (HSV) positive cases were detected. Factors associated with gonorrhea infection were non-Beijing local residency (odds ratio (OR) = 2.1, 95% confidence interval (CI): 1.2 - 3.8) and genital-genital contact (OR = 3.1, 95%CI: 1.3 - 7.2); factors associated with curable STI (excluding bacterial vaginosis, candidiasis, HBV and HCV) were non-Beijing local residency (OR = 1.9; 95%CI: 1.2 - 3.0) and bleeding during or after sex (OR = 18.1; 95%CI: 5.2 - 62.6); and the factor associated with RTI (including all the infections tested) was bleeding during or after sex (OR = 37.8, 95%CI: 11.2 - 127.4). CONCLUSIONS: Behaviors that may cause RTI/STI exist among Chinese women who have sex with women. Researchers should consider these behaviors when planning corresponding prevention and interventions.


Assuntos
Homossexualidade Feminina/estatística & dados numéricos , Infecções Sexualmente Transmissíveis/epidemiologia , Adulto , Candidíase/epidemiologia , China , Feminino , Gonorreia/epidemiologia , Hepatite B/epidemiologia , Hepatite C/epidemiologia , Humanos , Fatores de Risco , Sífilis/epidemiologia , Vaginose Bacteriana/epidemiologia , Adulto Jovem
19.
PLoS One ; 7(7): e40114, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22768334

RESUMO

OBJECTIVES: To assess risk behaviors for reproductive tract infections (RTI) including sexually transmitted infections (STI) among women who have sex with women (WSW) in Beijing, China. METHODS: A cross-sectional study of women recruited from venues and internet outreach analyzed using interviews. RESULTS: We recruited 224 WSW, among whom were 37 couples. The average age of participants was 25.6 years. Sex with men in the past year was reported by 10.7% of participants. During the past year, 34.3% (77/224) had had >1 sexual partner and 72.4% (162/224) had ever had >1 sexual partner. Condom use in the last sex with a man was reported by 54.2% (13/24) of women; 12.5% (3/24) reported never having used a condom with a man in the past year. In the past year, 13.4% (30/224) reported using sex toys with their female partners; of these, 43.3% (13/30) reported consistent condom use with the sex toys and 36.7% (11/30) had shared sex toys. Among participants 65.2% (120/184) reported that their "G-spot" had been stimulated during sex, 49.2% (59/120) of whom reported bleeding during or after sex. Only 12.5% (8/64) of those never reporting "G spot" stimulation reported bleeding during or after sex (P<0.001). CONCLUSIONS: WSW in Beijing engaged in high-risk sexual behaviors that may carry a substantial risk of being infected with STI/RTI. To implement STI/RTI prevention and intervention among women, women-women sexual behavior should be considered when doing research and intervention programs.


Assuntos
Homossexualidade Feminina , Infecções do Sistema Genital/epidemiologia , Assunção de Riscos , Sexo sem Proteção , Adulto , China/epidemiologia , Feminino , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Infecções do Sistema Genital/etiologia
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