1.Epidemic trends and prevention and control effectiveness of notifiable infectious diseases in Yichang City based on interrupted time series
Qian WU ; Hao ZHANG ; Zhongcheng YANG ; Ling ZHOU ; Yi LIANG ; Yajun CAO
Journal of Public Health and Preventive Medicine 2026;37(1):88-92
Objective To analyze the epidemiological characteristics of statutory infectious diseases in Yichang City from 2015 to 2023 and evaluate the effectiveness of non-pharmaceutical interventions (NPIs) in infectious disease prevention and control, and to provide a basis for formulating prevention and control strategies. Methods Descriptive epidemiological methods were used to analyze annual incidence rates. SARIMA and SARIMA intervention models were constructed to predict the incidence rates of infectious diseases. Interrupted time series analysis (ITS) was applied to assess the control effectiveness. Results The average annual incidence rate from 2015 to 2023 was 787.47/100 000, with the top five diseases being influenza, hand-foot-and-mouth disease, hepatitis B, tuberculosis, and diarrheal diseases. The average incidence rate from 2015 to 2019 (654.31/100 000) was significantly higher than that from 2020 to 2022 (489.01/100 000) (χ2= 3 499.6, P < 0.05). The total incidence rate in 2023 (2 396.51/100 000) was significantly higher than the average annual incidence rates from 2015-2019 (χ2= 108 186.1, P < 0.05) and 2020-2022 (χ2= 112 869.4, P < 0.05). SARIMA model results indicated that the actual incidence rate from 2020 to 2022 decreased by 73.49% compared to the predicted rate without intervention, with the highest decline observed in respiratory infectious diseases (79.57%). The SARIMA-intervention model showed a 55.48% relative decrease in the total incidence rate for 2023, with the largest reduction in respiratory infectious diseases (63.28%) and a slight increase in intestinal infectious diseases (5.48%). Conclusion NPIs effectively reduce the incidence of statutory infectious diseases in the short term, especially for acute respiratory and intestinal infectious diseases. However, long-term effectiveness faces challenges, necessitating the development of differentiated prevention and control strategies.
2.Study on medication adherence factors among patients with severe mental disorders in Zhuhai city based on XGBoost model
Zhongshu YE ; Yongyong TENG ; Jingju QUAN ; Yajun SUN ; Jiaju HUANG ; Yixuan WU ; Changlin HAN ; Guangchuan ZHANG
Sichuan Mental Health 2026;39(1):36-43
BackgroundLow medication compliance among patients with severe mental disorders increases the disease burden on both the patients' families and the society. Medication adherence is influenced by numerous factors. Traditional methods such as Logistic regression struggle to quantify the importance of these factors. By introducing Extreme Gradient Boosting (XGBoost) combined with Shapley Additive Explanations (SHAP), enables the quantification of the relative contribution weights of each factor, providing support for identifying the core influencing factors. ObjectiveTo explore the influencing factors of medication adherence among patients with severe mental disorders in Zhuhai, aiming to provide references for optimizing patient management strategies. MethodsExtract the data of patients with severe mental disorders who were registered on the mental health system platform in Zhuhai City from January 1, 2023 to March 31, 2025. A total of 9 329 patients were finally included for analysis. Influencing factors were screened using univariate analysis and multivariate logistic regression analysis, and an XGBoost model combined with the SHAP algorithm was constructed to quantify the importance of each influencing factor. ResultsAmong 9 329 patients, 8 446 demonstrated medication adherence, yielding an adherence rate of 90.53%. Multivariable analysis identified several risk factors significantly associated with medication non-adherence, being unmarried (OR=1.237, 95% CI: 1.019–1.502) or divorced (OR=1.389, 95% CI: 1.038–1.832), a diagnosis of mental retardation with psychiatric disorders (OR=3.025, 95% CI: 2.402–3.796) or paranoid psychosis (OR=5.117, 95% CI: 3.086–8.299), a disease duration of 2–4 years (OR=1.355, 95% CI: 1.085–1.696), 4–6 years (OR=2.143, 95% CI: 1.671–2.747), or >6 years (OR=1.681, 95% CI: 1.365–2.079), lack of guardian subsidies (OR=1.412, 95% CI: 1.099–1.801), absence of a disability certificate (OR=1.900, 95% CI: 1.588–2.282), not being enrolled in care and support groups (OR=1.384, 95% CI: 1.183–1.617) or community services (OR=1.313, 95% CI: 1.042–1.645), and not cohabiting with a guardian (OR=1.257, 95% CI: 1.048–1.501). Conversely, the enrollment in special outpatient disease programs (OR=0.716, 95% CI: 0.609–0.842) and a family history of mental illness (OR=0.713, 95% CI: 0.503–0.982) were identified as protective factors. The XGBoost model exhibited robust predictive performance, with a sensitivity of 0.433, specificity of 0.944, accuracy of 0.891, Area Under the Curve (AUC) of 0.837, and F1 value of 0.449. Feature importance ranking indicated that the top three factors were disease duration, diagnosis, and the acquisition of disability certificates. ConclusionPolicy-based support (acquisition of disability certificates, special outpatient disease enrollment) and clinical disease characteristics (disease duration, diagnosis type) are key factors affecting medication adherence among patients with severe mental disorders in Zhuhai City. [Funded by Zhuhai Medical Research Project (number, 2220009000281)]
3.Construction of an evaluation index system for community visual health services in Shanghai
Chengyuan ZHANG ; Yuting WU ; Yajun PENG ; Tao YU ; Yi XU ; Senlin LIN ; Haidong ZOU ; Lina LU
Shanghai Journal of Preventive Medicine 2025;37(3):282-287
ObjectiveTo improve the quality and service performance of community visual health services in Shanghai, and to establish a set of reasonable and effective evaluation index system for community visual health services. MethodsCentered on the national and Shanghai-based visual health policies and based on the current status and development trends of community visual health service program in Shanghai, the candidate indicators were formed through literature review and expert interviews, firstly. The framework of an evaluation index system was formulated through qualitative research successively, which was further revised and perfected using the Delphi method. Coefficient weights were calculated using the analytic hierarchy process (AHP), culminating in the establishment of the community visual health evaluation index system, lastly. ResultsA total of 22 visual health experts from district-level center for disease control, hospital ophthalmology and leaders in charging of visual health service in community health centers participated in the Delphi questionnaire survey, with a questionnaire recovery rate of 100% and an expert authority coefficient of 0.86, indicating high credibility. After a round of correspondence to experts’ importance ratings and discussions, a comprehensive evaluation index system comprising 3 primary indicators, 12 secondary indicators, and 47 tertiary indicators, along with 5 additional indicators, was finalized. ConclusionAn index system tailored to effective evaluation for community visual health initiatives was drawn up in this study, which can promote the capacity building in community eye health services, facilitating the high-quality development of visual health courses, and enhancing residents’ eye health.
4.Exploration on the diuretic mechanism of Zhuling Decoction on ADRN mice from CDK18/STUB1/AQP2 pathway
Wenfeng XU ; Fan WU ; Yajun PENG ; Qun TANG ; Xuhua LI ; Hua HU
International Journal of Traditional Chinese Medicine 2025;47(5):624-629
Objective:To observe the diuretic effects of Zhuling Decoction on mice with adriamycin nephropathy (ADRN); To explore its mechanism.Methods:Totally 32 SPF male C57BL/6 mice were divided into a blank group of 7 mice and a model group of 25 mice using a random number table method. ADRN model was prepared by single tail vein injection of 0.01 g/kg of amphotericin. Two weeks later, the successfully modeled mice were divided into a model group (7 mice), a furosemide group (8 mice), and a Zhuling Decoction group (8 mice). The blank group and model group mice were given equal volumes of injection water by gavage. The furosemide group was given 2.6 mg/kg of furosemide by gavage, and the Zhuling Decoction group was given 6.5 g/kg of Zhuling Decoction by gavage, once a day, for 8 consecutive weeks. Changes in body weight and urine output of mice were observed. A biochemical analyzer was used to detect 24-hour urinary protein quantification and blood potassium and SCr levels in mice. HE staining was used to observe pathological changes in mouse kidneys, and immunohistochemistry and Western blot were used to detect the homology of cyclin dependent kinase 18 (CDK18), STIP1, and the expressions of U-box protein 1 (STUB1) and aquaporin 2 (AQP2) in mouse kidney tissue cells.Results:Compared with the model group, both the furosemide and Zhuling Decoction groups exhibited increased 24-hour urine output ( P<0.05); compared with the model group and furosemide group, Zhuling Decoction group showed reduced average optical density values and protein expressions of CDK18 and AQP2 ( P<0.05) and increased STUB1 average optical density value and protein expression ( P<0.05). Conclusion:Zhuling Decoction can increase 24-hour urine output in ADRN mice, and the mechanism may be related to down-regulation of CDK18 and AQP2 protein expressions and up-regulation of STUB1 protein expression, thereby modulating the CDK18/STUB1/AQP2 pathway and reducing water reabsorption.
5.Mental health status and its influencing factors among residents in Zhuhai
Ning WEI ; Jingju QUAN ; Yixuan WU ; Yongyong TENG ; Chun MAO ; Jiaju HUANG ; Yunfei KE ; Yajun SUN
Sichuan Mental Health 2024;37(5):457-463
Background Currently,there has been a gradual increase in the incidence of mental diseases,becoming a problem that has attracted great concern of the general public.Zhuhai is a core city of the Guangdong-Hong Kong-Macao Greater Bay Area,and the local government have attached great importance to the mental health of residents.The systematic study on the mental health has focused largely on pregnant women and medical workers,yet few are on the adult residents.Objective To investigate the prevalence and its influencing factors of anxiety and depression among adult residents in Zhuhai,so as to provide references for formulating targeted psychological intervention strategies.Methods From September 1 to December 1,2021,a cohort of 5 600 permanent residents aged 18 years and above in Zhuhai were selected through multistage sampling.All participants were subjected to complete Patients' Health Questionnaire Depression Scale-9 item(PHQ-9),Generalized Anxiety Disorder Scale-7 item(GAD-7)and National Mental Health Literacy Questionnaire based on Wenjuanxing software.Then Logistic regression was employed to identify the factors associated with anxiety and depression among the residents.Results Among the 5 600 residents,depressive symptoms were detected in 842(15.04%)residents and anxiety symptoms in 579(10.34%)residents.Logistic regression analysis yielded that female gender(OR=1.488),living in Doumen district(OR=1.942),junior college/undergraduate level(OR=3.602),postgraduate and above(OR=5.904),irregular meal pattern(OR=3.320),comorbid chronic diseases(OR=3.244),disqualification of self-assessment(OR=3.414)and disqualification of mental health skill(OR=2.131)were risk factors for depression symptoms,whereas age≥25 years old(of all age groups OR<1),monthly per capita income>20 000 yuan(OR=0.438)and exercising≥3 times a week(OR=0.431)were protective factors for depression symptoms.Age of 25~34 years old(OR=2.051),living in Jinwan district(OR=1.729)or Doumen district(OR=1.901),junior college/undergraduate level(OR=2.955),postgraduate and above(OR=6.662),irregular meal pattern(OR=2.741),comorbid chronic diseases(OR=3.535),disqualification of self-assessment(OR=3.325)and disqualification of mental health skill(OR=1.838)were risk factors for anxiety symptoms,while monthly per capita income of 6 001~9 000 yuan(OR=0.665)and exercising≥3 times a week(OR=0.572)were protective factors for anxiety symptoms.Conclusion The mental health status of adult residents in Zhuhai is affected by various factors,including gender,age,region of residence,education level,meal pattern,exercise frequency and chronic diseases.
6.XIONG Jibai's Experience in Treating Henoch-schonlein Purpura by Staged Diagnosis and Treatment with "Simultaneous Treatment of Wind and Blood"
Wenfeng XU ; Hua HU ; Yajun PENG ; Fan WU ; Wei CAI ; Zhaohong GONG ; Chao TAN
Journal of Traditional Chinese Medicine 2024;65(13):1318-1322
This article aimed to summarise the clinical experience of Professor XIONG Jibai in treating henoch-schonlein purpura (HSP) from the perspective of "simultaneous treatment of wind and blood". HSP was devided into acute phase and transitional phase in clinic. It was considered that the wind pathogen exists throughout the disease course, and the treatment is guided by the "four methods of treating blood" in TANG Rongchuan's Treatise on Blood Syndromes - Blood Vomiting (《血证论·吐血》), which are stanching bleeding, expelling stasis, tranquilising blood, and tonifying blood. In the acute phase, wind-heat damaging collateral symdrome and blood-heat frenetic flow syndrome are common, which could be treated by the method of cooling blood to dispel wind, and eliminating stasis to stop bleeding, with self-prescribed modified Ziping Xiaofeng Powder (紫萍消风散); in the transitional phase, syndrome of effulgent fire due to yin deficiency and syndrome of qi deficiency failing to control are common, which could be treated by the method of tranquilising blood and tonifying deficiency, with modified Zhibai Dihuang Decoction (知柏地黄汤) and Guipi Decoction (归脾汤). At the same time, it is believed that wind-related medicinal has the function of eliminating stasis, stanching bleeding, and cooling blood, and the wind-related medicinal should be used throughout the treatment.
7.Research on constructing talent training objectives and courses of undergraduate education of tropical medicine by Delphi method
Jie WU ; Yan LI ; Qunfang CAI ; Sufang DONG ; Li YIN ; Yajun LU ; Qianfeng XIA
Chinese Journal of Medical Education Research 2024;23(3):343-346
Objective:To construct talent training objectives and courses for undergraduate education of tropical medicine.Methods:Two rounds of questionnaire consultation were conducted among 15 experts by Delphi method. SPSS 26.0 software was used for statistical analysis, and the recovery rate, expert authority coefficient, mean of importance score, full score ratio, coefficient of variation and Kendall coordination coefficient were calculated respectively. Kendall's rank correlation test was used to analyze the degree of expert coordination, and the "boundary value method" was used to screen the indicators.Results:The effective recovery rates of the two rounds of consultation were all 100.00% and the expert authority coefficient was 0.815. The coordination coefficient was 0.25, 0.32, and 0.27, 0.36 respectively, and the significance test showed P<0.001. Finally, 11 talent training objectives and 7 courses for undergraduate education of tropical medicine were formed. Conclusions:The talent training objectives and courses for undergraduate education of tropical medicine are reasonable and reliable, which can provide theoretical support for tropical medicine talent training and have certain guiding value.
8.Molecular characteristics and antibiotic resistance of Clostridioides difficile isolated from children in China
Yajun JIANG ; Wenzhu ZHANG ; Lulu BAI ; Telong XU ; Ying LI ; Jinxing LU ; Yuan WU ; Bike ZHANG
Chinese Journal of Epidemiology 2024;45(9):1258-1265
Objective:To understand molecular characteristics and antibiotic resistance of Clostridioides ( C.) difficile isolated from children in China, and provide data support the development of disease risk assessment and burden studies. Methods:A total of 155 strains of C. difficile isolated from children aged <12 years in 14 provinces (autonomous regions, municipalities) in China from 2010 to 2023 were used for the analyses on molecular characteristics and antibiotic resistance of C. difficile by PCR and drug susceptibility test. Results:A total of 26 sequence types (STs) and 18 ribotypes (RTs) were identified in the 155 C. difficile isolates, in which ST3 (20.65%), ST54 (16.13%), ST35 (12.90%), and RT012/ICDC007 (14.84%), RT001/ICDC001 (11.61%), RT046/ICDC018 (8.39%) were the most common. One highly virulent strain with RT078 and 27 non-toxin-producing strains were also found; the predominant toxin gene was tcdA+ tcdB+ cdt-. All the strains were sensitive to metronidazole and vancomycin, and there were 29 multidrug-resistant strains, in which 1 strain was resistant to all the seven antibiotics except for vancomycin and metronidazole. Conclusions:Molecular characteristics and antibiotic resistance of C. difficile in children were similar to those in whole population in China, but there were regional distribution differences. It is necessary to strengthen the routine drug-resistance surveillance for C. difficile infection in children in China.
9.Application of high-fidelity simulation model in the teaching of lower urinary tract injury
Hao SHENG ; Bo SONG ; Wengang HU ; Yajun SONG ; Ronghua WU ; Chibing HUANG
Chinese Journal of Medical Education Research 2024;23(4):501-505
Objective:To evaluate the effect of applying high-fidelity simulation model in the teaching of lower urinary tract injury.Methods:A total of 50 junior medical students majoring in clinical medicine were enrolled. They were randomly assigned to the control group or the experimental group. The students in the control group were taught using the traditional method involving PPT presentation and videos on lower urinary tract anatomy, surgical basis of lower urinary tract injury, and operative methods for lower urinary tract injury. The students in the experimental group were taught using the simulation model for observation and related operation. After four class hours (40 minutes/class hour) of teaching, the students in the two groups were subjected to theoretical assessment and questionnaire survey. The differences between the two groups were compared and analyzed using the t and χ 2 tests in SPSS 26.0. Results:The total scores of theoretical assessment were (36.80±4.00) and (33.12±3.62) in the experimental group and the control group, respectively, and the difference was significant ( P<0.05). The results of the questionnaire showed that the self-evaluation of the experimental group was better than that of the control group in the mastery of theoretical knowledge, clinical operation, early treatment, operation process, and key steps, and the differences were statistically significant ( P<0.05). Conclusions:Compared with the traditional teaching method, the high-fidelity simulation model improves the efficiency of learning anatomy knowledge and operation process, and promotes the mastery of important and difficult knowledge in lower urinary tract injury. This method merits popularization.
10.Analysis of clinical characteristics and treatment of patients with perianal necrotizing fasciitis
Shaoban ZHU ; Dehui LI ; Da'en LIU ; Jun WEI ; Chaoyi ZHONG ; Yajun WU ; Qingwen NONG ; Shumei QIU ; Shuntang LI
Chinese Journal of Burns 2024;40(10):955-962
Objective:To investigate the clinical characteristics and treatment of patients with perianal necrotizing fasciitis.Methods:This study was a retrospective cohort study. Twenty patients with perianal necrotizing fasciitis who met the inclusion criteria were admitted to the Department of Burn and Plastic Surgery of the First Affiliated Hospital of Guangxi Medical University (hereinafter referred to as our department) from August 2013 to September 2023, including 19 males and 1 female, aged 24-74 (56±11) years. Based on the spreading route of perianal infection to the lower abdomen, the patients were divided into perianal-inguinal-lower abdominal wall group (12 cases) and perianal-pelvic cavity-retroperitoneal group (8 cases). The following clinical data were compared between the two groups of patients: general data, including gender, age, combined underlying diseases, blood glucose level and acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score when admitted to our department, and laboratory risk indicator for necrotizing fasciitis (LRINEC) score when admitted to our department and at 14 d after admitted to our department; infection indicators when admitted to our department, including C-reactive protein level, white blood cell count, lymphocyte count, procalcitonin level, and lactic acid level; clinical outcome-related indicators, including time from onset to definite infection range, number of surgery, treatment in intensive care unit (ICU), length of hospital stay, treatment outcome, and recurrence of necrotizing fasciitis during follow-up; detection of pathogen and bacterial drug resistance in wound necrotic tissue specimen when admitted to our department.Results:Compared with those in perianal-inguinal-lower abdominal wall group, the APACHE Ⅱ score and lactic acid level when admitted to our department and LRINEC score at 14 d after admitted to our department (with t values of -5.98, -5.01, and -2.86, respectively, P<0.05) and ICU treatment ratio ( P<0.05) were significantly increased, the time from onset to definite infection range was significantly prolonged ( Z=-3.75, P<0.05), and the number of surgery was significantly increased ( Z=2.80, P<0.05) in patients in perianal-pelvic cavity-retroperitoneal group. There were no statistically significant differences in other data between the two groups of patients ( P>0.05). Eighteen patients were cured, and no recurrence of perianal necrotizing fasciitis was observed during follow-up of 6 months in 18 cured patients. The main bacteria were Escherichia coliand Klebsiella pneumoniae, and the fungui were Aspergillus and Candida albicans detected in wound necrotic tissue specimens in two groups of patients when admitted to our department. The ratio of multiple drug resistance of bacteria in wound necrotic tissue specimens in perianal-pelvic cavity-retroperitoneal group of patients was significantly higher than that in perianal-inguinal-lower abdominal wall group ( P<0.05). Conclusions:Perianal necrotizing fasciitis can spread to the lower abdomen through two routes: the perianal-inguinal-lower abdominal wall route and the perianal-pelvic cavity-retroperitoneal route. The latter is more insidious in disease progression and more challenging in treatment. Establishing a mechanism of multi-disciplinary team diagnosis and treatment can achieve the goal of early diagnosis and precise treatment of perianal necrotizing fasciitis.


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