2.Construction of a schistosomiasis transmission risk assessment system in Wuhan City based on analytic hierarchy process.
Y ZUO ; M XU ; Y LI ; S WANG ; S ZHOU ; H LUO
Chinese Journal of Schistosomiasis Control 2023;35(4):374-378
OBJECTIVE:
To construct a schistosomiasis transmission risk assessment system in Wuhan City and preliminary evaluate its application effect, so as to promote the rational allocation of schistosomiasis control resources and accelerate the progress towards schistosomiasis elimination.
METHODS:
The schistosomiasis risk assessment indicators were collected through referring schistosomiasis surveillance data of Wuhan City from 2014 to 2020, literature review and expert interviews. Indicators within each criterion and sub-criterion were screened using the Delphi method, and a hierarchical structure model was created based on analytic hierarchy process. Quantitative assignment of each indicator was conducted according to relative importance, and the weight and combination weight of each criterion were calculated in each analytic hierarchy framework to create a schistosomiasis transmission risk assessment system, which was used for the schistosomiasis transmission risk assessment in 12 national schistosomiasis surveillance sites in Wuhan City.
RESULTS:
A three-level schistosomiasis transmission risk assessment system was preliminarily constructed, which included a target layer, 5 criterion layers and 21 sub-criterion layers. Of all indicators in the criterion layer, transmission route had the highest weight (0.433), followed by source of Schistosoma japonicum infection (0.294); and among all indicators in the sub-criterion layer, S. japonicum infection in Oncomelania hupensis and sentinel mice had the highest combination weight (0.125), followed by prevalence of S. japonicum infection in humans (0.091) and bovines (0.053), snail control by chemical treatment (0.049), positive rate of inquiry examinations (0.048), allocation of schistosomiasis control professionals (0.045), and areas of submerged snail-infested settings (0.041). Of the 12 national schistosomiasis surveillance sites in Wuhan City, there were 5 sites with weights of > 0.8, 4 sites with weights of 0.6 to 0.8, and 3 sites with weights of < 0.6 in 2020.
CONCLUSIONS
A schistosomiasis transmission risk assessment system has been constructed based on analytic hierarchy process in Wuhan City, which may provide a evidence-based basis for health resource allocation and decision-making for schistosomiasis control.
Animals
;
Humans
;
Cattle
;
Mice
;
Analytic Hierarchy Process
;
Schistosomiasis/prevention & control*
;
Schistosomiasis japonica/epidemiology*
;
Snails
;
Risk Assessment
3.Treating acutely ill patients at home: Data from Singapore.
Stephanie Q KO ; Joel GOH ; Yee Kian TAY ; Norshima NASHI ; Benjamin M Y HOOI ; Nan LUO ; Win Sen KUAN ; John T Y SOONG ; Derek CHAN ; Yi Feng LAI ; Yee Wei LIM
Annals of the Academy of Medicine, Singapore 2022;51(7):392-399
INTRODUCTION:
Hospital-at-home programmes are well described in the literature but not in Asia. We describe a home-based inpatient substitutive care programme in Singapore, with clinical and patient-reported outcomes.
METHODS:
We conducted a retrospective cohort study of patients admitted to a hospital-at-home programme from September 2020 to September 2021. Suitable patients, who otherwise required hospitalisation, were admitted to the programme. They were from inpatient wards, emergency department and community nursing teams in the western part of Singapore, where a multidisciplinary team provided hospital-level care at home. Electronic health record data were extracted from all patients admitted to the programme. Patient satisfaction surveys were conducted post-discharge.
RESULTS:
A total of 108 patients enrolled. Mean age was 67.9 (standard deviation 16.7) years, and 46% were male. The main diagnoses were skin and soft tissue infections (35%), urinary tract infections (29%) and fluid overload (18%). Median length of stay was 4 (interquartile range 3-7) days. Seven patients were escalated back to the hospital, of whom 2 died after escalation. One patient died at home. There was 1 case of adverse drug reaction and 1 fall at home, and no cases of hospital-acquired infections. Patient satisfaction rates were high and 94% of contactable patients would choose to participate again.
CONCLUSION
Hospital-at-home programmes appear to be safe and feasible alternatives to inpatient care in Singapore. Further studies are warranted to compare clinical outcomes and cost to conventional inpatient care.
Aftercare
;
Aged
;
Female
;
Hospitalization
;
Humans
;
Length of Stay
;
Male
;
Patient Discharge
;
Retrospective Studies
;
Singapore
4.Epidemiological characteristics of molecular transmission cluster among reported HIV/AIDS cases in Jiaxing city, Zhejiang province, 2017.
M Y LUO ; X H PAN ; Q FAN ; J F ZHANG ; R GE ; J JIANG ; W J CHEN
Chinese Journal of Epidemiology 2019;40(2):202-206
Objective: To understand the epidemiological characteristics of one large HIV molecular transmission cluster in Jiaxing city, Zhejiang province, 2017 in order to select those people under high-risk and providing basis for programs on prevention. Methods: During 2017, newly diagnosed HIV/AIDS cases in this city were recruited. Plasma samples were collected from subjects, followed by RNA extraction, RT-PCR and nest-PCR for pol gene amplification, before being sequenced and aligned. Mega 6.0 software was used to construct phylogenetic tree, and Cytoscape 3.6.0 software was used to identify HIV molecular transmission clusters. Cases within the large transmission clusters were investigated, using a field-epidemiology-questionnaire. Data related to socio-demographics and previous sexual behaviors were collected and EpiData 3.0 and SPSS 20.0 software were used. Results: In the large transmission cluster with subtype identified as CRF07_BC, in Jiaxing, 2017, 26 cases of the total 30 cases were investigated. A total of 80.8% (21/26) could be identified as newly infected within the last two years and 30.8%(8/26) could be identified as newly infected within the last one year, including 22 cases infected locally. Among several infected cases who were at age 45 years or older, they admitted that they had experienced unprotected sexual contacts in local city for long time and having had more than 10 disclosed sexual contacts within the last two years at the local venues. Conclusions: This molecular cluster had been formed and scaled up quickly in recent two years, it has played an important role in promoting and scaling up the HIV transmission. Three cases identificed as high risk played an importantrde role in scaling up this cluster.
Amplified Fragment Length Polymorphism Analysis
;
China/epidemiology*
;
Genes, pol
;
Genotype
;
HIV Infections/transmission*
;
HIV-1/isolation & purification*
;
Humans
;
Molecular Epidemiology
;
Phylogeny
;
Polymerase Chain Reaction
;
RNA, Viral/blood*
;
Sexual Behavior
;
pol Gene Products, Human Immunodeficiency Virus
5.Knowledge, related behavior and on AIDS/HIV infection among rural adults with Derung minority, in Yunnan province, 2016.
Y N CAI ; Y L MA ; H B LUO ; M Y XIAO ; J NIU ; L J SONG ; X H LI ; L R FU ; Z Y ZHANG ; Q H DAI ; Y L ZHANG ; M H JIA
Chinese Journal of Epidemiology 2018;39(4):483-486
Objective: To understand the related risk behaviors, knowledge and status of HIV/AIDS infection among rural adults of Derung minority, to provide relevant messages for the development of HIV/AIDS intervention strategy in this minority group. Methods: We used system sampling method to conduct a cross-sectional survey in 6 administration villages of Derung Township, Gongshan Derung and Nu Autonomous County in Nujiang Lisu Autonomous Prefecture of Yunnan Province, with a sample size estimated as 383. Adult residents with Derung minority in six villages of Gongshan County were involved, with relevant information collected through door-to-door visit. HIV antibody was tested and SPSS 17.0 was used for statistical analysis. Results: Information on 394 valid respondents was collected, with age as between 18 and 65 (34.39±9.74), 80.7% (318/394) as married, 54.0% (213/394) having had primary school education, 13.2% (52/394) as migrant workers. In this population, the overall HIV infection rate appeared as 0.5% (2/400), mainly through sexually transmission. The rate of awareness on HIV/AIDS was 69.8% (275/394), mainly through free publicized materials 50.0% (197/394). Rates on premarital sexual behavior on multiple sexual partners in the past year, on temporary sexual partners in the past year, having commercial sexual experiences in the past year and ever used condoms when engaging in casual sex, were 6.4% (60/366), 18.0%(66/366), 5.7%(21/366), 1.9%(7/366) and 8.0%(25/311), respectively. Conclusions: Few numbers of HIV infections were identified among the migrating workers with Derung minority, with sexual transmission as the major route, along with the increased number of rural migrant workers and the low rates both on AIDS knowledge and condom use, accompanied by the high risk sexual behavior appeared in this rural adult residents of Derung minority. Relative strategies on HIV/AIDS intervention and control should be developed.
Acquired Immunodeficiency Syndrome
;
Adult
;
China/epidemiology*
;
Condoms
;
Cross-Sectional Studies
;
HIV Infections/epidemiology*
;
Health Knowledge, Attitudes, Practice
;
Humans
;
Infections
;
Risk-Taking
;
Rural Population/statistics & numerical data*
;
Sexual Behavior
;
Sexual Partners
;
Surveys and Questionnaires
;
Transients and Migrants
6.Cloning expression and serological evaluation on Mycobacterium tuberculosis four new antigens.
Q LUO ; S J LI ; T Y XIAO ; M C LI ; H C LIU ; Y L LOU ; K L WAN
Chinese Journal of Epidemiology 2018;39(4):514-518
Objective: To evaluate the serological diagnostic value of Mycobacterium (M.) tuberculosis four new antigens Rv0432, Rv0674, Rv1566c and Rv1547. Methods:Rv0432, Rv0674, Rv1566c and Rv1547 were amplified from M. tuberculosis strain H37Rv genomic DNA by using PCR, among which Rv1547 was divided into two segments for amplification (Rv1547-1 and Rv1547-2). The segments were cloned into expression vector PET-32a while the recombinant proteins were purified by affinity chromatography. Serums were incubated with BL21 (DE3) proteins. Antibodies IgG against M. tuberculosis were tested with 151 serum samples (41 healthy people and 110 TB patients) by using ELISA. The diagnostic efficiency of antigens was analyzed by means of receiver operating characteristic curve. Difference of the objective proteins in TB patients and healthy controls was compared by t-test. Results: Recombinant antigens Rv0432, Rv0674, Rv1566c, Rv1547-1 and Rv1547-2 were successfully expressed and purified. Results from ELISA showed that the sensitivity, specificity, positive predictive value, negative predictive value, Youden index and area under the curve of Rv0432, Rv0674, Rv1566c, Rv1547-1 and Rv1547-2, as 43.64%-92.73%, 80.49%-92.68%, 0.92-0.94, 0.38-0.80, 0.363-0.732 and 0.649-0.915. All the objective proteins showed significantly higher antibody levels in TB patients, when compared to the healthy controls (P<0.000 1). Conclusion: The newly identified antigens Rv0432, Rv0674, Rv1566c, Rv1547-1 and Rv1547-2 all performed well when being used for TB serological diagnosis, thus were expected to be new candidate antigens used for TB diagnosis.
Antigens, Bacterial/genetics*
;
Cloning, Molecular
;
Enzyme-Linked Immunosorbent Assay
;
Humans
;
Immunoglobulin G
;
Mycobacterium tuberculosis/metabolism*
;
Polymerase Chain Reaction
;
ROC Curve
;
Recombinant Proteins
;
Sensitivity and Specificity
;
Serologic Tests/methods*
;
Tuberculosis/genetics*
7.General plan of Shanghai Diet and Health Survey.
Z N ZHU ; Y LU ; C F WU ; S R ZOU ; H LIU ; C F WANG ; B Z LUO ; H T YU ; M MI ; G Q WANG ; L B XIONG ; W J WANG ; C Y LUO ; J J ZANG ; Z Y WANG ; X D JIA ; X G FENG ; C Y GUO ; F WU
Chinese Journal of Epidemiology 2018;39(7):876-879
Shanghai Diet and Health Survey (SDHS) was designed to prospectively access local residents' food consumption, energy and nutrient intake, related chemical contaminant exposure, and the seasonal change trend to explore the relationship of diet with health. Data from SDHS can be used as fundamental information and scientific evidences for the development of local nutrition and food safety policies.
China
;
Diet
;
Energy Intake
;
Health Surveys
;
Nutrition Policy
;
Nutrition Surveys
8.Survey of HIV infection in men who have sex with men living for 5 years or less in Wenzhou, Zhejiang province.
D S ZHAO ; M Y LUO ; H S ZHU ; F H XUE ; Y Y CHEN ; X X ZHANG ; X H PAN
Chinese Journal of Epidemiology 2018;39(7):948-953
Objective: To assess the prevalence of HIV infection and related factors in men who have sex with men (MSM) living for ≤5 years in Wenzhou of Zhejiang province. Methods: MSM who were aged ≥16 years, had lived in Wenzhou for ≥3 months and had anal sex and/or oral sex with men in the last 12 months were recruited through respondent-driven sampling (RDS) from February to October in 2015. The MSM recruited completed a questionnaire for the information collection on socio-demographic characteristics, sexual behavior, awareness of HIV and related intervention, mental health status. Blood samples were collected from them for serological detection of HIV and syphilis antibodies. Software SPSS 18.0 was used to analyze HIV infection and related factors. Results: A total of 454 MSM were investigated, 108 of them (23.7%) were HIV positive. There were 267 MSM who lived in Wenzhou for ≤5 years, and 73 of them (27.3%) were HIV positive. Most of them were workers and commercial servants aged ≥25 years with personal monthly income <4 000 yuan and educational level of junior high school or below. According to multiple logistics regression analysis, age of 25-68 years old (OR=12.19, 95%CI: 2.29-65.02), heterosexual behavior in recent 6 months (OR=0.42, 95%CI: 0.18-0.96), believing it was possible to be infected with HIV (OR=0.06, 95%CI: 0.01-0.95), believing it was impossible to be infected with HIV (OR=0.03, 95%CI: 0.01-0.35) and syphilis status (OR=3.32, 95%CI: 1.05-10.52) were the risk factors associated with HIV infection. Conclusion: Compared with MSM who lived in Wenzhou for >5 years, MSM who lived in Wenzhou for ≤5 years had higher HIV infection rate and higher prevalence of risk behavior. It is necessary to conduct targeted intervention among them.
Adult
;
Aged
;
HIV Infections/epidemiology*
;
Homosexuality, Male/statistics & numerical data*
;
Humans
;
Male
;
Middle Aged
;
Sexual Behavior
;
Surveys and Questionnaires
9.Strategy for prevention and control of imported infectious disease.
D F LI ; T SHEN ; Y ZHANG ; H Y WU ; L D GAO ; D M WANG ; Z J LI ; W W YIN ; H J YU ; T SONG ; J M OU ; Q LI ; Q LI ; S Y XIE ; J LEI ; H M LUO
Chinese Journal of Epidemiology 2018;39(10):1291-1297
The process of globalization increases the risk of global transmission of infectious diseases, resulting in pressure for country's prevention and control of imported infectious disease. Based on the risk assessment of disease importation and local transmission, a strategy that conducting importation prevention and routine prevention and control before the importation of disease and taking emergency control measures after the importation of disease was developed. In addition, it is important to take part in global infectious disease response action, aid the countries with outbreak or epidemic to actively decrease the risk of disease importation.
Communicable Diseases
;
Communicable Diseases, Imported/transmission*
;
Disease Outbreaks/prevention & control*
;
Epidemics
;
Global Health
;
Humans
;
Risk Assessment
;
Travel
10.Analysis on the current situation of insufficient sleep and its association with physical exercise among Chinese Han students aged 9-18 years, in 2014.
D M LUO ; R B XU ; P J HU ; B DONG ; B ZHANG ; Y SONG ; J MA
Chinese Journal of Epidemiology 2018;39(10):1298-1302
Objective: To describe the situation of insufficient sleep and the association between insufficient sleep and physical exercise, among Chinese Han students aged 9-18 years. Methods: We selected 172 197 Chinese Han students aged 9-18 years from the project 2014 Chinese National Survey on Students Constitution and Health. The average sleep duration per day of less than 9 h for children aged 9-12 years and of less than 8 h for adolescents aged 13-18 years, were defined as insufficient sleep. We described the distribution of sleep duration and the prevalence rates of insufficient sleep for each subgroup. Logistic regression models were established to assess the association between insufficient sleep and physical exercise. Results: In 2014, 6.6%, 30.8%, 26.3%, 20.8%, 13.8% and 1.8% of the Chinese Han students self-reported sleep duration were <6, 6-, 7-, 8- and ≥10 h, respectively. The overall prevalence rate of insufficient sleep was 77.2%, with 75.8% for boys and 78.6% for girls. No gender disparity was found at each 9-11 age groups. However, in the 12-18 age groups, the prevalence rates for girls were significantly higher than that for boys. The prevalence rates of insufficient sleep for primary school, middle school and high school students were66.6%, 74.1% and 93.8%, respectively. Rates were increasing with age for children aged 9-12 years and adolescents aged 13-18 years respectively. The three provinces with the lowest prevalence rates of insufficient sleep were Zhejiang (68.8%), Jiangsu (66.7%) and Shaanxi (65.2%). Data from the logistic regression models revealed that, when comparing to those students with only exercise of <0.5 h per day, the exercise hours of 0.5-1 h (OR=0.72, 95%CI: 0.69-0.74) or ≥1 h (OR=0.46, 95%CI: 0.44-0.47) per day seemed as protective factors for insufficient sleep. When compared with physical exercise frequency <2 times per week, the 2 times (OR=0.82, 95%CI: 0.78-0.86) or >2 times (OR=0.65, 95%CI: 0.62-0.68) frequencies also appeared as protective. Conclusions: The prevalence rate of insufficient sleep prevailing among students aged 9-18 years was high, in China. Our data called for setting up effective measures to deal with this situation.
Adolescent
;
Asian People/statistics & numerical data*
;
Child
;
China
;
Exercise
;
Female
;
Humans
;
Male
;
Schools
;
Sleep
;
Sleep Deprivation
;
Students
;
Surveys and Questionnaires

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