OBJECTIVETo investigate the situation of notification and HIV antibody testing of sexual partners of people who lived with HIV, and to analyze the factors which could influence the rate of sexual partner notification of Shanghai.

METHODSHIV-positive people were recruited from Jiading, Jinan and Xuhui District in Shanghai, all of them were diagnosed with HIV from July 1, 1998 to July 30, 2014, and all of them were ≥ 16 years old, ruled out poor compliance, unwillingness to cooperate, mental disorders, deaf and other factors that could not properly answer questions. Face to face questionnaires were used to collect demographics, HIV related knowledge, testing of HIV, status of sexual partners before they have been diagnosed with HIV, notification of sexual partners. These questionnaires were self-designed. The differences of notification situation and the HIV-positive rate among different sexual partners were compared by chi-square tests. The factors which would influence the rate of sexual partner notification were analyzed by logistic regression, and the OR (95% CI) value was calculated.

RESULTSA total of 307 people living with HIV were surveyed, of these 276 (89.9%) were males and 31 (10.1%) were females. The rates of different sexual partner been notified from spouses, homosexual regular partners, heterosexual regular partners, heterosexual no-regular no-commercial partners, homosexual no-regular no-commercial partners to commercial sexual partners were 68.2% (105/154), 44.7% (119/266), 21.4% (22/103), 5.8% (3/52), 5.5% (43/787), and 0.4% (1/235) (χ(2) = 5.22, P < 0.001). Among these been notified sexual partners 277 of them have had HIV antibody tested, 90 persons was HIV-positive, the rate was 32.5%. Confirmed time (OR: 0.37, 95% CI: 0.16-0.86), whether inform staff allowed the HIV-positive people mobilize their sexual partners have HIV-antibody test (OR: 9.63, 95% CI: 3.77-24.55), whether someone else was present during notification (OR: 5.57, 95% CI: 1.96-15.78) and relationship stability (OR: 28.55, 95% CI: 7.93-102.75; OR: 14.13, 95% CI: 4.87-41.02) were associated with HIV-positive people disclosing their infected status to their sexual partners.

CONCLUSIONSThe rate of notification to these partners was low, but the HIV antibody positive rate was high among the sexual partners in the three research districts of Shanghai. Shorter confirmed time, inform staff didn't allow the HIV-positive people mobilize their partners have HIV-antibody test, no other was present during people was told they were HIV-positive, and no fixed sexual relationship, all these could make lower rate of sexual partners to be notified.

China ; Contact Tracing ; Disclosure ; Female ; HIV Antibodies ; blood ; HIV Seropositivity ; diagnosis ; Humans ; Logistic Models ; Male ; Sexual Behavior ; Sexual Partners ; Spouses ; Surveys and Questionnaires

Objective To evaluate the clinical efficacy and cost-benefit of 23-valent pneumococcal polysaccharide vaccine (PPV23) in prevention of lower respiratory tract infections (LRTIs) in the elderly over 60 years old in Jiading District, Shanghai. Methods A prospective cohort study was conduct, in which the sample size was 1 000 for both inoculated and uninoculated groups. This study followed the two groups for three years. Incidence and economic burden of LRTIs were compared between the two groups. Re-sults Compared with the uninoculated group,the incidence of LRTIs in the inoculated group reduced sig-nificantly and the efficacy of PPV23 was stable. Inoculation of about every 10 elderly people could prevent one incidence of LRTIs. The overall protective efficacy of PPV23 against LRTIs, usage of antibiotics and hospitalization were 59.5%,63.5% and 89%,respectively. As the incidence of LRTIs increased,the pro-tective rate of PPV23 also tended to increase. Subgroup analysis showed that PPV23 reduced the incidence of LRTIs,usage of antibiotics and hospitalization in the elderly with hypertension,and decreased the incidence of LRTIs and usage of antibiotics in the elderly who were healthy or had diabetes.The cost-benefit ratio was 1 : 1.64 and the net benefit was ￥58 544. Adverse events following immunization were mostly local reac-tions and none were treated. Conclusion PPV23 can effectively reduce the incidence of LRTIs in the elder-ly over 60 years old with stable efficacy,safety and benefits outweighing costs.

Objective To develop a data glove evaluation system to assist rehabilitation physicians and therapists in assessing the degree of rehabilitation of hand-wounded patients. Methods A data glove containing 136-axis inertial sensors was designed and produced. It was tested on 10 healthy subjects and 3 hand trauma pa-tients admitted to the Department of Rehabilitation Medicine at Run Run Shaw Hospital. The glove transmitted ac-celeration and angular velocity components in the X, Y and Z directions to a computer terminal, allowing the ben-ding angles of the subject′s finger joints to be calculated. Traditional protractor measurements were used to verify to what extent the data glove accurately reflected the hand and joint activity. Results Compared with the traditional protractor measurement method, the data glove quickly gave accurate maximum bending angles both in healthy and hand-wounded subjects . Such data can facilitate the rehabilitation of hand injuries. Conclusions The data glove produced in this study can effectively assist rehabilitation doctors and therapists in assessing the recovery of hand-injured patients.

Objective To determine the seasonal fluctuation and population distribution of Aedes albopictus in Jiading District， and provide scientific evidence for the prevention and control of dengue fever and other Aedes-borne diseases. Methods In 2020， the mosq-ovitrap method and mosq-ovitrap index （MOI） were used to monitor and evaluate the density of Aedes albopictus in Jiading District. Spatial and temporal distribution of Aedes albopictus was determined. Chi-square test was used for statistical analysis. Results In 2020， the annual average MOI was determined to be 4.10， which was under safety threshold. The seasonal fluctuations showed a unimodal distribution， which peaked in July. The fluctuation trend in urban area was similar to the overall trend， while that in the non-urban area showed a bimodal distribution with peaks in June and August. The density of Aedes albopictus at different monitoring sites varied widely，with the highest MOI （6.64） at Anting town and the lowest MOI （2.09） at Huating town. The distribution of Aedes albopictus in different habitats also varied widely； the highest density was observed in environments as waste collection stations and construction sites， with the highest MOI 33.33 in waste collection stations in peak season. The MOI value of Aedes albopictus in residential areas was significantly higher than that in non-residential areas （χ² = 6.082， P = 0.014）. Conclusion Aedes albopictus is quite common in Jiading District. In certain areas， Aedes density may exceed the safety threshold from May to September. More targeted mosquito control measures should be implemented in waste collection stations， construction sites and residential areas.

ObjectiveTo investigate the current status and influencing factors of hand hygiene practices among primary healthcare workers， and to provide a reference for improving hand hygiene behavior in primary healthcare institutions. MethodsA self-designed questionnaire was used to conduct a survey among medical staff of seven community health service centers in Jiading District， Shanghai， using a cluster random sampling method. The data collected were subjected to descriptive statistics， reliability and validity tests， correlation analysis， and structural equation model fitting. ResultsA statistical difference in hand hygiene compliance was found among medical staff with varying occupational types and educational levels （P<0.05）， and medical staff in clinical departments exhibited higher levels of hand hygiene compliance （P<0.05）. In the health belief model， among the core variables， healthcare workers’ perceived benefits， perceived barriers， and self-efficacy had a direct impact on hand hygiene behavior， with direct effect values of 0.341， -0.152， and 0.234， respectively. Meanwhile， cues to action and perceived severity of COVID-19 infection indirectly affected hand hygiene behavior， with an indirect effect value of 0.066 and 0.062， respectively. ConclusionHealthcare workers generally exhibit a high degree of hand hygiene compliance， but there are variations in hand hygiene scores among healthcare workers with different characteristics. Enhancing healthcare worders’ perception of benefits， action cues， and self-efficacy while reducing perceived barriers can effectively improve their hand hygiene behavior.

Objective: To describe the sickness absenteeism among primary and secondary school students in Jiading District and to analyze its correlation with the incidence of infectious diseases and associated lead or lag times, so as,to provide a scientific basis for the health and education departments to take measures. Methods: The regularity and symptom composition of school sickness absenteeism among primary and secondary school students in Jiading District from the 2010-2017 were described. The Joinpoint model was applied to analyze the changing trend of absenteeism. And the rate of school sickness absenteeism and incidences of 7 acute infectious diseases were compared through visual analysis. The time lagged correlation coefficients and Granger causality tests were applied to quantitatively analyze the correlation and lead/lag patterns. Results: The average rate of school sickness absenteeism among primary and secondary school students in Jiading District, Shanghai was 0.27%. Since the 2012 academic year, the overall rate of sickness absenteeism has been on the rise. Fever was the most common symptom of absenteeism (47.49%). The trend of sickness absenteeism rate was mainly consistent with the incidence of influenza, and showed a one way Granger causality. The maximum time lagged correlation coefficient was obtained in the second semester of the 2017 academic year with a value of 0.43 (95% CI =0.25-0.58). The maximum time lagged correlation coefficient between the rate of sickness absenteeism with fever and other respiratory symptoms and the incidence of influenza was also obtained in the second semester of the 2017 academic year and the maximum correlation coefficient was 0.50(95% CI =0.33-0.65). Conclusion The sickness absenteeism rate in primary and secondary school students is correlated to influenza incidence, and it has potential application value in supplementing early warning of influenza activities in the community.

ObjectiveTo evaluate the measles surveillance system （MSS） in Jiading District， Shanghai from 2020 to 2022， and to provide evidence for the elimination of measles. MethodsDescriptive methods were used to analyze the MSS data and confirmed measles cases from 2020 to 2022 and to evaluate MSS performance indicators. ResultsA total of 120 suspected cases were reported through the MSS from 2020 to 2022， of which 12 were classified as measles， 9 as rubella， and 99 as non-measles /rubella. The incidence of reported non-measles /rubella was 1.44 per 100 000 population in 2020， 2.01 per 100 000 population in 2021， and 1.99 per 100 000 population in 2022. The rates of complete investigation within 48 hours， blood samples and etiology collection， timely delivery， and timely reporting were all 100%. Among the 12 confirmed measles cases from 2020 to 2022， seven routine immunization subjects completed the required doses of measles vaccines， while two out five adult cases had a history of measles vaccine-related immunization. The confirmed cases comprised six with fever accompanied by rash， five with rash alone， and one with fever alone. ConclusionThe MSS results in Jiading District， Shanghai are overall satisfactory. However， there is a need to improve sensitivity， especially in detecting and reporting cases with atypical symptoms. It is imperative to maintain high vaccination coverage for age-appropriate children， promote supplementary immunization activities， and elevate the overall immunity of the entire population.

ObjectiveTo investigate the late diagnosis of HIV infection and associated factors in Jiading District between 1998 and 2022， and to provide the information for the development of AIDS prevention and control strategy. MethodsInformation of newly reported HIV/AIDS cases in Jiading District between 1998 and 2022 were obtained from the National Information System for Comprehensive AIDS Prevention and Control. Logistic regression was used to explore the associated factors of late diagnosis of HIV infection. ResultsIn total， 809 HIV/AIDS cases was newly reported， 324 of which were late diagnosis with the overall rate of late diagnosis of 40.1%. Despite an increased tendency from 2016 to 2018， the rate of late diagnosis showed a downward trend from 1998 to 2015. The late diagnosis rate was 29.5% in 2015. From 2016 to 2022， the average rate was 34.9%. The average age of cases with a late diagnosis was 44.8±14.6 years old. Age groups over 50 had the highest risk，at 57.7%， accounting for 35.8% of all cases of late diagnosis. All age groups older than 30（OR=1.37‒3.50） had a higher rate of late diagnosis than the group between age 21 and 30. In comparison to patients at VCT clinic， the rate of late diagnosis among sexually transmitted disease （STD） outpatients （OR=2.23， 95%CI：1.42‒3.49） and other clinical patients （OR=2.75， 95%CI：1.88‒4.01） was higher. ConclusionThe late diagnosis rate of HIV infection is relatively high in Jiading District. AIDS education and prevention activities should be strengthened among people aged over 50 years. For early detection of HIV infection， VCT clinic platform’s function should be fully utilized. Medical institutions should pay attention to HIV testing in patients.