Objective: To explore the dynamic developmental trajectories of college students class belongingness during their college years and its longitudinal predictive effects on depressive symptoms, so as to provide targeted insights for precise campus psychological interventions. Methods: In October 2021 (T1), a total of 4 720 college students from a university in Shandong Province were selected by cluster sampling method and followed up for 3 years. Surveys were conducted annually (T2: October 2022, T3: October 2023, T4: October 2024). The Class Belongingness Scale and Patient Health Questionnaire-9 (PHQ-9) were used to assess students class belongingness and depressive symptoms. Latent growth mixture modeling was employed to identify trajectories of class belonging, and multinomial Logistic regression analysis was used to examine the predictive effects of these trajectory classes on depressive symptoms. Results: Mean scores of class belongingness across T1-T4 were (73.24±11.95, 74.76±12.25, 75.25±12.38, 77.64±11.63), and the scores of depressive symptoms were [1.00 (0, 5.00), 0 (0, 3.00), 0 (0, 2.00), 0 (0, 2.00)]. The developmental trajectories of class belongingness were categorized into three types: the high-starting ascending group ( 56.61 %), the low-starting descending group (11.91%), and the medium-starting stable group (31.48%). Multinomial Logistic regression analysis showed that, compared to the medium-starting stable group, the high-starting ascending group had a lower probability of developing mild depressive symptoms ( OR=0.27, 95%CI =0.15-0.47) and moderate or above depressive symptoms ( OR=0.29, 95% CI = 0.14-0.60) (both P <0.05). Conversely, the low-starting descending group had a higher probability of developing mild depressive symptoms ( OR=2.31, 95%CI =1.65-3.22) and moderate or above depressive symptoms ( OR=7.49, 95%CI = 3.82-14.69) (both P <0.05). Conclusion Declining trajectory of class belongingness is a risk factor for depressive symptoms, while sustained upward trend may mitigate such risks.

ObjectiveTo explore the effect of blood flow restriction training (BFRT) under different intensities combined with low-intensity resistance training (LIRT) on motor function in stroke patients with frailty. MethodsFrom August, 2024 to August, 2025, 200 elderly ischemic stroke patients with frailty from Affiliated Hospital, North China University of Science and Technology were randomized into control group and observation groups 1, 2 and 3, with 50 cases in each group. All the groups received 30% 1RM resistance training. In addition, the observation groups received BFRT of 40%, 50% and 60% arterial occlusion pressure (AOP), respectively. Before training, and four and eight weeks after training, their motor function was evaluated with Fugl-Meyer Assessment-Upper Extremities (FMA-UE) and Fugl-Meyer Assessment-Lower Extremities (FMA-LE), grip strength, 10-Metre Walk Test (10MWT) and Berg Balance Scale (BBS); Fried Frailty Phenotype (FFP) was used to assess frailty status; and the score of modified Ashworth Scale (MAS), blood pressure and resting heart rate were recorded. ResultsOne case dropped out in each group. For the scores of FMA-UE and FMA-LE, the grip strength of both hands, the time of 10MWT and the score of BBS, the main effects of group and time, and interaction effect were all significant (F > 2.745, P < 0.05); four weeks after training, the above indexes were better in the observation groups than in the control group (P < 0.05); eight weeks after training, the scores of FMA-UE and FMA-LE, the grip strength of both hand and the score of BBS were better in the observation group 3 than in the observation groups 1 and 2 (P < 0.05), and the time of 10MWT was better in the observation group 3 than in the observation group 1 (P < 0.05). For the score of FFP, the main effect of group was significant (F = 688.360, P < 0.001), however, the effects of time and interaction were not significant (P > 0.05). For the score of MAS, the main effect of group was significant (F = 7.171, P = 0.008), however, the effects of time and interaction were not significant (P > 0.05). For the blood pressure and resting heart rate, the main effects of group and time, and interaction effect were not significant (P > 0.05). ConclusionBFRT under different intensities combined with LIRT can safely improve the motor function, grip strength, walking ability in elderly stroke patients, and 60% AOP may be more effective.

Objective: To analyze the current status and hotspots of the construction of healthy cities, so as to provide the reference for promoting healthy city construction. Methods: Retrieve relevant articles on the construction of healthy cities from CNKI and Web of Science databases until December 2024. Count the number of publications, countries/regions of publication, and research institutions. Keyword co-occurrence maps were drawn by using CiteSpace 6.3.R1 software, and combined cluster analysis to summarize the main research hotspot themes. Results: A total of 1 120 articles were retrieved. Among them, there were 670 English articles, with the first one published in 2006, and the peak number (109 articles) of publications was reached in 2021. There were 426 Chinese articles, with the first one published in 1996, and the peak number (62 articles) of publications was reached in 2020. The overall number of publications showed an upward trend. Among the English articles, China, the United States, and the United Kingdom ranked the top three in terms of the number of publications, with 171, 97, and 80 articles, respectively. Wuhan University, the University of Hong Kong, and Peking University were the top three core institutions, with 18, 17, and 14 articles, respectively. High-frequency keywords included "healthy cities", "physical activity", "healthy city", "city", "built environment", "health", and "public health". The main research hotspot themes encompassed four aspects: mental health and the built environment, public health policies, climate change and urban sustainability, and the multidimensional complex relationships of health determinants. Among the Chinese articles, China had the highest number of publications, with 422 articles (99.06%). Tongji University, Tsinghua University, and Nanjing University were the top three core institutions, with 30, 11, and 8 articles, respectively. High-frequency keywords were "healthy cities", "urban planning", "public health", "built environment", "indicator system", and "influencing factors". The main research hotspot themes included three aspects: urban planning and spatial layout, the comprehensive practice and policy framework of healthy city construction, and the interaction between health activities and the built environment. Conclusions The number of publications on the construction of healthy cities has increased, and both Chinese and English articles focus on public health and the built environment. Construction of healthy cities has interdisciplinary characteristics.

Objective:Middle ear cholesteatoma is a common otolaryngological disease, and traditional diagnostic methods have certain limitations. This study aims to construct a computer-aided diagnosis model for middle ear cholesteatoma based on integrated convolutional neural networks (CNNs) to improve diagnostic accuracy and efficiency.Methods:Firstly, Data were collected from patients who visited the Department of Otorhinolaryngology Head and Neck Surgery at the First People′s Hospital of Yinchuan between January 2020 and December 2021. 8 000 temporal bone CT images were collected, including 5 000 images diagnosed pathologically as middle ear cholesteatoma and 3 000 normal images. A five-fold cross-validation method was used to divide the dataset into training and testing sets. Next, a transfer learning approach was used to initialize model parameters, and the AlexNet, GoogleNet, and ResNet networks were pre-trained to extract deep features from the images. Then, the Softmax classification algorithm was applied to classify the features, resulting in three independent classifiers. These classifiers were combined using an ensemble learning method with a weighted voting approach to obtain the final diagnostic results. Finally, the model was evaluated by comparing the ensemble classifier with individual classifiers to assess its accuracy, precision, sensitivity, specificity, and diagnostic time, and a comparison with low-mid-and high-experience physician groups was conducted to comprehensively evaluate the model′s diagnostic performance.Results:The experimental results showed that the model achieved an accuracy of 88.8%(178/200), precision of 92.9%,(112/120) sensitivity of 89.8%(108/120), and specificity of 88.1%(70/80). The average diagnostic time for individual patient temporal bone CT images was reduced to 2-3 seconds. Compared to the diagnostic results from low-mid-and high-experience physician groups, the model demonstrated significant advantages and effectively assisted clinicians in making rapid and accurate middle ear cholesteatoma diagnoses.Conclusion:The proposed middle ear cholesteatoma diagnostic model based on integrated convolutional neural networks exhibits high recognition accuracy and rapid diagnostic speed, significantly improving clinical diagnostic efficiency, especially in early screening and auxiliary diagnosis, making it of considerable value in clinical practice.

Objective To investigate the prediction of natural killer(NK)cells,and T helper cells(Th)cy-tokine levels for assisted reproductive pregnancy outcomes in high-risk human papillomavirus(HR-HPV)in-fected patients.Methods A total of 128 cases of HR-HPV infected patients who received assisted reproduc-tive treatment in a hospital from September 2021 to June 2023 were selected as the study objects,and were di-vided into normal pregnancy outcome group(n=87)and adverse pregnancy outcome group(n=41)accord-ing to their pregnancy outcomes.The clinical data,NK cell proportion,interleukin(IL)-2,IL-4,IL-6 and IL-10 levels before in vitro fertilization-embryo transfer treatment were collected and compared between the two groups.Spearman correlation analysis,univariate Logistic regression analysis and multiple Logistic regression analysis were used to screen out the risk factors for adverse pregnancy outcomes in HR-HPV infected patients receiving assisted reproduction.Receiver operating characteristic(ROC)curve and area under the curve(AUC)were used to evaluate the predictive efficacy of risk factors alone and in combination for adverse preg-nancy outcomes in HR-HPV infected patients undergoing assisted reproduction.Results The age of the ad-verse pregnancy outcome group was significantly higher than that of the normal pregnancy outcome group,and the difference was statistically significant(P＜0.05).The proportion of NK cells and the level of IL-10 in the adverse pregnancy outcome group were significantly lower than those in the normal pregnancy outcome group,and the level of IL-6 was significantly higher than that in the normal pregnancy outcome group,with statistical significance(P＜0.05).Spearman correlation analysis showed that age and IL-6 level of HR-HPV infection were positively correlated with adverse pregnancy outcome after assisted reproduction(r=0.582,0.341,P＜0.001).The proportion of NK cells and the level of IL-10 were negatively correlated with adverse pregnancy outcomes after assisted reproduction(r=-0.459,-0.359,P＜0.001).Multivariate Logistic re-gression analysis showed that the proportion of NK cells,low level of IL-10 and high level of IL-6 in HR-HPV infected persons were risk factors for adverse pregnancy outcomes after assisted reproduction(P＜0.05).ROC curve analysis results showed that the AUC of NK cell ratio,IL-6 and IL-10 alone and in combination to predict adverse pregnancy outcome after assisted reproduction in HR-HPV infected patients were 0.784,0.711,0.660 and 0.876,respectively.The efficiency of combined prediction using the three indicators was higher than that of independent prediction(Z=3.006,3.211,3.716,P＜0.05).Conclusion The levels of NK cells and Th cytokines have important clinical significance in the prediction of assisted reproductive pregnancy outcome in HR-HPV infected patients.

Objective To evaluate the application value of fascial platform versus commercial platform in transumbilical single-port laparoscopic transabdominal preperitoneal repair(TAPP)for inguinal hernia.Methods One hundred patients with inguinal hernia admitted between January and December 2024 were prospectively enrolled and randomly assigned to either the fascial platform group(n=50)or the commercial platform group(n=50)by using a random number table.The following parameters were compared between the two groups:platform establishment time,operative time,intraoperative blood loss,incision suture time,operative difficulty score,camera manipulation difficulty score,postoperative 24-hour Visual Analogue Scale(VAS)score of pain,postoperative hospital stay,total hospitalization cost,comprehensive satisfaction score,and postoperative complications.Results The fascial platform group demonstrated significantly superior outcomes compared to the commercial platform group in platform establishment time[(3.4±1.0)min vs.(8.1±1.5)min,t=-18.389,P＜0.001],operative time[(67.5±7.9)min vs.(72.2±11.5)min,t=-2.380,P=0.019],intraoperative blood loss[(8.3±4.3)ml vs.(11.1±5.7)ml,t=-2.798,P=0.006],incision suture time[(7.0±1.4)min vs.(11.8±2.7)min,t=-11.212,P＜0.001],operative difficulty score(14.4±3.6 vs.23.1±4.1,t=-11.215,P＜0.001),camera manipulation difficulty score(11.4±2.6 vs.18.3±2.5,t=-13.370,P＜0.001),VAS score of postoperative 24-hour pain(2.4±1.0 vs.3.7±1.1,t=-6.139,P＜0.001),total hospitalization cost[(15.8±1.6)thousand yuan vs.(18.3±1.6)thousand yuan,t=-7.841,P＜0.001],and comprehensive satisfaction score(7.3±1.1 vs.6.3±1.0,t=5.271,P＜0.001).However,there were no statistically significant differences in postoperative hospital stay or postoperative complication between the two groups(P＞0.05).All the patients were followed up for 1-12 months postoperatively[(5.3±1.8)months vs.(5.7±2.0)months,t=-0.945,P=0.347],with no recurrence observed in either group.Conclusions Both fascial platform and commercial platform can be used for transumbilical single-port TAPP.The fascial platform offers advantages including shorter platform establishment time,reduced incision suture time,lower operative and camera manipulation difficulty,decreased cost,less postoperative pain,and higher patient satisfaction.

Objective:To evaluate the impact of postoperative radiotherapy (RT) and associated risk factors on the prognosis of patients undergoing postmastectomy breast reconstruction (PMBR) for breast cancer.Methods:A retrospective analysis was conducted on 1593 breast cancer patients who underwent PMBR at Tianjin Medical University Cancer Institute & Hospital between January 2010 and October 2023. Patients were divided into an RT group ( n = 351) and a non-RT group ( n =1242) based on whether postoperative radiotherapy was administered. The primary endpoints were overall survival (OS) and progression-free survival (PFS), and the secondary endpoint was the incidence of revision surgery. Propensity score matching (PSM) and inverse probability of treatment weighting (IPTW) were used for pairing. Continuous variables were compared between the two groups using the independent samples t-tests, while categorical variables were compared using chi-square tests, and survival analysis was performed using the Kaplan-Meier method. Cox proportional hazards model was used to analyze survival influencing factors, and include propensity factors with P<0.2 in univariate analysis into multivariate analysis. Results:In the RT group, there were 3 deaths (0.9%) and 21 cases of disease progression (6.0%); in the non-RT group, 7 patients died (0.56%) and 40 experienced disease progression (3.22%). The median OS was 20.1 months (range: 0.1-164.9), and the median PFS was 19.5 months (range: 0.1-160.9). Pregnancy-associated breast cancer and higher N stage were identified as significant risk factors for OS, while neoadjuvant therapy, absence of adjuvant chemotherapy or endocrine therapy, and higher T stage were significant risk factors affecting patients' PFS. Radiotherapy significantly reduced the survival risk for PMBR patients with pregnancy-associated breast cancer or those receiving neoadjuvant therapy ( P=0.019, 0.027). Compared with other reconstruction methods, implant-based reconstruction was associated with a lower incidence of postmastectomy revision surgery(10.5% vs. 17.0%, P<0.001). Even after radiotherapy, the revision surgery incidence for implant-based reconstruction remained lower than that of other methods (12.2% vs. 14.2%, P=0.591). Compared with other reconstruction types, expander-based reconstruction was associated with an increased incidence of revision surgery (31.9% vs. 10.9%, P<0.001). Conclusions:Postmastectomy radiotherapy can reduce survival risk in PMBR patients with pregnancy-associated breast cancer or who received neoadjuvant therapy, showing positive effects on OS and PFS in high-risk patients. Pregnancy, higher T/N stage, and specific treatment strategies are critical factors influencing the prognosis of PMBR patients. Implant-based reconstruction is associated with a lower incidence of revision surgery, which remains low even after RT, whereas expander-based reconstruction may increase the long-term risk of revision surgery.

Objective:Based on the activities of Helicobacter pylori ( HP) screening in Jiangsu Province in 2024, to evaluate the overall management ability in HP screening, testing, treatment and follow-up in primary medical facilities. Methods:From May 15 to October 18, 2024, the data of HP screening and treatment were retrospectively collected from 79 township health centers, community hospitals, and community health service centers in Jiangsu Province. The rates of screening completion, urea breath test (UBT) completion, treatment rate, UBT follow-up completion, and HP eradication were analyzed. Chi-square test was used for statistical analysis. Results:The completion rate of HP screening was 94.45% (15 489/16 400). There were 6 604 cases (42.64%) with serum HP antibody positive among the 15 489 individuals who completed screening. The positive rate of serum HP antibody in males was higher than that in females (44.77%, 2 643/5 904 vs. 41.32%, 3 961/9 585), and the difference was statistically significant ( χ2=17.69, P<0.001). The positive rates of serum HP antibody in screened individuals aged 18 to 19, 20 to 39, 40 to 59, and 60 to 75 years old were 22.38% (32/143), 36.12% (1 168/3 234), 45.01% (3 240/7 199), and 44.05% (2 164/4 913), respectively, and the difference was statistically significant( χ2=100.73, P<0.001). Among the 6 604 HP antibody-positive individuals, 4 381 cases completed UBT, with a UBT completion rate of 66.34% (4 381/6 604). There were 3 197 individuals with both HP serum antibody and UBT positive, the consistency rate of the 2 tests was 72.97% (3 197/4 381). Totally 2 737 cases received treatment, with a treatment completion rate of 85.61% (2 737/3 197); 2 327 individuals underwent UBT follow-up, with a follow-up completion rate of 85.02% (2 327/2 737). During follow-up, the result of UBT was negative in 1 982 individuals, and the HP eradication rate was 85.17% (1 982/2 327). Conclusions:There are deficiencies in the completion rate of HP screening, testing, treatment, and follow-up in primary hospitals, especially in the completion rate of UBT, which may be related to cognitive insufficiency for HP in residents. It is necessary to strengthen the training of physicians′ abilities in primary hospitals, optimize the allocation of drug resources, enhance health education, and increase residents′ participation and compliance.

Objective To search,evaluate and summarise the best evidence on pre-rehabilitation before surgery for elderly patients with hip fracture so as to provide an evidence-based basis for further standardisation in clinical practice.Methods Based on the"6S Pyramid"evidence model,desktop searches were conducted across databases and websites including Medlive,BMJ Best Practice,UpToDate,the World Health Organization,the Guidelines International Network(GIN),British National Institute for Health and Care Excellence(NICE),American National Guideline Clearinghouse(NGC),Canadian Medical Association:Clinical Practice Guidelines Infobase(CMA),Scottish Intercollegiate Guidelines Network(SIGN),the Registered Nurses'Association of Ontario(RNAO),American College of Sports Medicine(ACSM),American Academy of Orthopaedic Surgeons(AAOS),European Society for Clinical Nutrition and Metabolism(ESPEN),American Society for Parenteral and Enteral Nutrition(ASPEN),the Enhanced Recovery After Surgery Society(ERASS),Cochrane Library,Joanna Briggs Institute,PubMed,CINAHL,Web of Science,Embase,Scopus,Science Direct,CNKI,Wanfang Data,Vip,and SinoMed.The research targeted evidence on pre-rehabilitation in elderly patients with hip-fracture before surgery,encompassing clinical decisions,guidelines,evidence summaries,best practices,expert consensus,systematic reviews and randomized controlled trials(RCTs).The search items spanned from the inception of database to 31st December,2023.Two researchers trained with evidence-based knowledge evaluated the quality of the included literature and extracted and summarised the evidence.Results A total of 14 documents were included,consisting of 2 clinical decisions,4 guidelines,1 best practice,4 expert consensus and 3 systematic reviews.Evidence was summarised into 7 domains from 25 pieces of evidence:multidisciplinary management,preoperative assessment,preoperative health education,multi-modal analgesia,nutritional management,exercise intervention and assessment and prevention of complication risks.Conclusion The best evidence summarised in this study provides a basis for pre-rehabilitation in elderly patients with hip fracture before surgery.Nurses should adapt the findings to specific contexts,standardise the preoperative rehabilitation procedures,and improve clinical outcomes for the patients.