1.Artificial intelligence and cervical spine image recognition:application prospects and challenges
Simin WANG ; Dezhou ZHANG ; Jing ZHAO ; Chaoqun WANG ; Kun LI ; Jie CHEN ; Xue BAI ; Hailong ZHAO ; Shaojie ZHANG ; Yuan MA ; Yunteng HAO ; Yang YANG ; Zhijun LI ; Jun SHI ; Xing WANG
Chinese Journal of Tissue Engineering Research 2025;29(33):7231-7240
BACKGROUND:Cervical spondylosis is a chronic degenerative disease that has become one of the most common and frequent diseases threatening human health.At present,the initial diagnosis of the cervical spine and its surrounding structures mainly relies on the interpretation of medical images by radiologists,which not only requires a high level of technical requirements for operators,but also has the disadvantages of strong subjectivity,high labor intensity,and low efficiency.With the rapid development of artificial intelligence technology,its powerful data processing and image recognition capabilities have shown broad application prospects in the medical field.Deep learning has also made certain progress in the research of spinal diseases.OBJECTIVE:To summarize the current status and research progress in the application of artificial intelligence technology in cervical spine imaging images in recent years,evaluating the performance of artificial intelligence models as well as future trends and challenges to be overcome.METHODS:The first author searched the relevant articles in WanFang,CNKI,and PubMed in June 2024.The Chinese search terms were"artificial intelligence,deep learning,cervical spine."English serach terms were"artificial intelligence,Al,cervical vertebrae,cervical."Finally,101 articles were included and analyzed.RESULTS AND CONCLUSION:(1)Artificial intelligence technology can realize automatic segmentation of cervical vertebrae and measurement of curvature change by segmentation,classification,landmarks recognition of medical image parts,detect cervical vertebral fracture,nerve root,and spinal cord type cervical spondylosis,identify cervical spine ossification of posterior longitudinal ligament,and predict post-surgery related risk factors and cervical vertebra maturation classification.(2)Although artificial intelligence technology has shown great potential in the field of cervical spine research,it is still in the early stages of exploration and rapid development,with unlimited room for development and innovation.
2.Evaluation and Factor Analysis of Preoperative Medication-Related Issues in Patients Undergoing Video-Assisted Thoracoscopic Surgery
Yingkun LIU ; Ning PANG ; Chaoqun MA ; Rongrong FAN ; Yi LIU ; Yanguo LIU ; Lin HUANG ; Xiaohong ZHANG
Herald of Medicine 2025;44(5):764-770
Objective To evaluate drug-related problems(DRPs)and to analyze the influencing factors of patients un-dergoing video-assisted thoracoscopic surgery(VATS)before operation in thoracic surgery.Methods Clinical pharmacists used the Pharmaceutical Care Network Europe(PCNE)classification system(version 9.1)to analyze DRPs and influencing fac-tors of patients who received VATS from March 1 to May 31,2023,and had at least one comorbidity.Results Out of 300 pa-tients,174 were involved in a total of 200 DRPs.The most common category of DRPs is treatment safety(47.50%),followed by treatment effectiveness(46.00%)and others(6.50%).The most common cause of the problem is drug selection(33.83%),fol-lowed by other(33.33%)and patient cause(19.90%).367 interventions were conducted for DRPs,with the most interventions being at the drug level(55.86%),followed by the doctor level(39.24%)and the patient level(3.54%).In the end,96.00%of the intervention plan was accepted,and 86.50%of the problems were resolved.There were significant differences(P<0.05)in the number of underlying diseases,medication varieties,body mass index(BMI),and length of hospital stay between the group with and without DRPs.The results of multivariate analysis showed that comorbidities,number of medication types,and BMI were independent risk factors for preoperative occurrence(or potential)of DRPs in VATS patients in thoracic surgery(OR>1,P<0.05).Conclusions Clinical pharmacists can effectively evaluate preoperative DRPs in patients undergoing VATS in thoracic surgery through the PCNE classification system.Comorbidities,number of medications,and BMI are influential factors for the oc-currence of preoperative DRPs.Future clinical practice should focus on these risk factors to optimize treatment strategies and re-duce the occurrence of DRPs.
3.Analysis of the current situation and relevant factors of the intrinsic capacity of senior citizen in elderly care institutions
E GAO ; Mingyue ZHANG ; Yumei TIAN ; Jie WANG ; Chaoqun XING ; Yue WU
Chinese Journal of General Practitioners 2025;24(7):852-860
Objective:To understand the current situation and the relevant factors of the intrinsic capacity of the elderly in nursing institutions.Methods:It was a cross-sectional study. From December 2023 to February 2024, a total of 10 elderly people living in 5 institutions in Huaihua City, Hunan Province, 3 institutions in Changsha City, and 2 institutions in Yinchuan City, Ningxia Hui Autonomous Region, were conveniently selected. Relevant clinical data of the participants were collected through questionnaires. The 5 dimensions of motor, psychological, cognitive, vitality, and perceptual were selected to evaluate the intrinsic capacity of the participants, and their total intrinsic capacity scores were calculated by using the Short Physical Performance Battery, Geriatric Depression Scale, Mini-mental State Examination, Short-Form Mini-Nutritionalas Assessment and the Complaints Sensory Functioning, respectively. Multiple linear stepwise regression models were used to analyze the correlates of intrinsic competence in older adults in nursing facilities.Results:Two hundred and seventy institutionalized older adults were included in the analysis, aged (80.9±8.5) years, 117(43.33%) were male, and the length of residence in an institution was 1.50(0.83, 3.00) years.The intrinsic capacity score of the 270 institutionalized older adults was 2.24±0.97, of which 265(98.15%) had declining intrinsic capacity and 5(1.85%) had good intrinsic capacity. The results of multiple linear stepwise regression analysis showed that literacy level, economic source, occupation, frequency of exercise, use of smartphones, use of elderly mobility aids, and whether or not the elderly living in the nursing home received financial support from the state were independently associated with the intrinsic ability of the elderly living in the nursing home (all P<0.05). Conclusions:The overall level of intrinsic capacity of the investigated elderly in nursing homes is low, and literacy level, economic source, occupation, use of smartphones, use of elderly mobility aids, and whether the nursing home receives state financial support are independent correlates of the intrinsic ability of the elderly in nursing homes.
4.National bloodstream infection bacterial resistance surveillance report 2023: Gram-positive bacteria
Chaoqun YING ; Jinru JI ; Zhiying LIU ; Qing YANG ; Haishen KONG ; Jiangqin SONG ; Hui DING ; Yanyan LI ; Yuanyuan DAI ; Haifeng MAO ; Pengpeng TIAN ; Lu WANG ; Yongyun LIU ; Yizheng ZHOU ; Jiliang WANG ; Yan JIN ; Donghong HUANG ; Hongyun XU ; Peng ZHANG ; Xinhua QIANG ; Hong HE ; Lin ZHENG ; Junmin CAO ; Zhou LIU ; Ying HUANG ; Yan GENG ; Haiquan KANG ; Dan LIU ; Guolin LIAO ; Lixia ZHANG ; Fenghong CHEN ; Yanhong LI ; Baohua ZHANG ; Haixin DONG ; Xiaoyan LI ; Donghua LIU ; Qiuying ZHANG ; Xuefei HU ; Liang GUO ; Sijin MAN ; Dijing SONG ; Rong XU ; Youdong YIN ; Kunpeng LIANG ; Aiyun LI ; Zhuo LI ; Hongxia HU ; Guoping LU ; Jinhua LIANG ; Qiang LIU ; Yinqiao DONG ; Jilu SHEN ; Shuyan HU ; Liang LUAN ; Jian LI ; Ling MENG ; Dengyan QIAO ; Xiusan XIA ; Bo QUAN ; Dahong WANG ; Chunhua HAN ; Xiaoping YAN ; Fei LI ; Shifu WANG ; Ping SHEN ; Yunbo CHEN ; Yonghong XIAO
Chinese Journal of Clinical Infectious Diseases 2025;18(2):118-132
Objective:To report the nationwide surveillance results of pathogenic profiles and antimicrobial resistance patterns of Gram-positive bloodstream infections in China in 2023.Methods:The clinical isolates of Gram-posttive bacteria from blood cultures were collected in member hospitals of National Bloodstream Infection Bacterial Resistant Investigation Collaborative System(BRICS)during January to December 2023. Antimicrobial susceptibility testing was performed using the dilution method recommended by the Clinical and Laboratory Standards Institute(CLSI). Statistical analyses were conducted using WHONET 5.6 and SPSS 25.0 software.Results:A total of 4 385 Gram-positive bacterial isolates were obtained from 60 participating center. The top five pathogens were Staphylococcus aureus( n=1 544,35.2%),coagulase-negative Staphylococci( n=1 441,32.9%), Enterococcus faecium( n=574,13.1%), Enterococcus faecalis( n=385,8.8%),and α-hemolytic Streptococci( n=187,4.3%). The prevalence of methicillin-resistant Staphylococcus aureus(MRSA)and methicillin-resistant coagulase-negative Staphylococci(MRCNS)was 26.2%(405/1 544)and 69.8%(1 006/1 441),respectively. Notably,all Staphylococci remained susceptible to glycopeptide or daptomycin. Staphylococcus aureus demonstrated excellent susceptibility(>97.0%)to cephalobiol,rifampicin,trimethoprim-sulfamethoxazole,linezolid,minocycline,tigecycline,and eravacycline. No Enterococcus exhibiting resistance to linezolid were detected. Glycopeptide resistance was uncommon but more frequent in Enterococcus faecium(resistance to vancomycin and teicoplanin:both 1.7%)compared to Enterococcus faecalis(both 0.3%). The detection rates of MRSA and MRCNS exhibited significant regional variations across the country( χ2=17.674 and 148.650,respectively,both P<0.001). No vancomycin-resistant Enterococci were detected in central China. Institutional comparison demonstrated higher prevalence of MRSA( χ2=14.111, P<0.001)and MRCNS( χ2=4.828, P=0.028)in provincial hospitals than that in municipal hospitals. Socioeconomic analysis identified elevated detection rates of both MRSA( χ2=18.986, P<0.001)and MRCNS( χ2=4.477, P=0.034)in less developed regions(per capita GDP
5.National bloodstream infection bacterial resistance surveillance report (2023) : Gram-negative bacteria
Jinru JI ; Zhiying LIU ; Chaoqun YING ; Qing YANG ; Haishen KONG ; Jiangqin SONG ; Hui DING ; Yanyan LI ; Yuanyuan DAI ; Haifeng MAO ; Pengpeng TIAN ; Lu WANG ; Yongyun LIU ; Yizheng ZHOU ; Jiliang WANG ; Yan JIN ; Donghong HUANG ; Hongyun XU ; Peng ZHANG ; Xinhua QIANG ; Hong HE ; Lin ZHENG ; Junmin CAO ; Zhou LIU ; Ying HUANG ; Yan GENG ; Haiquan KANG ; Dan LIU ; Guolin LIAO ; Lixia ZHANG ; Fenghong CHEN ; Yanhong LI ; Baohua ZHANG ; Haixin DONG ; Xiaoyan LI ; Donghua LIU ; Qiuying ZHANG ; Xuefei HU ; Liang GUO ; Sijin MAN ; Dijing SONG ; Rong XU ; Youdong YIN ; Kunpeng LIANG ; Aiyun LI ; Zhuo LI ; Hongxia HU ; Guoping LU ; Jinhua LIANG ; Qiang LIU ; Yinqiao DONG ; Jilu SHEN ; Shuyan HU ; Liang LUAN ; Jian LI ; Ling MENG ; Dengyan QIAO ; Xiusan XIA ; Bo QUAN ; Dahong WANG ; Chunhua HAN ; Xiaoping YAN ; Fei LI ; Shifu WANG ; Ping SHEN ; Yunbo CHEN ; Yonghong XIAO
Chinese Journal of Clinical Infectious Diseases 2025;18(1):47-62
Objective:To report the results of bacterial resistant investigation collaborative system(BRICS)on the distribution and antimicrobial resistance profile of clinical Gram-negative bacteria isolates from bloodstream infections in China in 2023,and provide reference for clinical tretment of bloodstream infections and prevention and control of bacterial resistance.Methods:The clinical isolates of Gram-negative bacteria from blood cultures in member hospitals of BRICS were collected during January 2023 to December 2023. Antibiotic susceptibility tests were conducted by agar dilution or broth dilution methods recommended by Clinical and Laboratory Standards Institute(CLSI). WHONET 5.6 and SPSS 25.0 were used to analyze the data.Results:During the study period,11 492 strains of Gram-negative bacteria were collected from 60 hospitals,of which 10 098(87.9%)were Enterobacterales and 1 394(12.1%)were non-fermentative bacteria. The top 5 bacterial species were Escherichia coli(50.0%), Klebsiella pneumoniae(26.1%), Pseudomonas aeruginosa(5.1%), Acinetobacter baumannii complex(5.0%)and Enterobacter cloacae complex(4.1%). The ESBL-producing rates in Escherichia coli, Klebsiella pneumoniae and Proteus mirablilis were 46.8%(2 685/5 741),18.3%(549/2 999)and 44.0%(77/175),respectively. The prevalence of carbapenem-resistant Escherichia coli(CREC)and carbapenem-resistant Klebsiella pneumoniae(CRKP)were 1.3%(76/5 741)and 15.0%(450/2 999);32.9%(25/76)and 78.0%(351/450)of CREC and CRKP were sensitive to ceftazidime/avibactam combination,respectively. 94.7%(72/76)and 90.2%(406/450)of CREC and CRKP were sensitive to aztreonam/avibactam combination. Furthermore,57.9%(44/76)and 79.1%(356/450)were sensitive to imipenem/relebactam combination. The prevalence of carbapenem-resistant Acinetobacter baumannii(CRAB)complex was 64.6%(370/573),while more than 80.0% of CRAB complex was sensitive to tigecycline,eravacycline and polymyxin B. The prevalence of carbapenem-resistant Pseudomonas aeruginosa(CRPA)was 17.0%(99/581). There were differences in the composition ratio of Gram-negative bacteria in bloodstream infections and the prevalence of important Gram-negative bacteria resistance among different regions in China,with statistically significant differences in the prevalence of CREC,CRKP,CRPA and CRAB complex( χ2=10.6,28.6,10.8 and 19.3, P<0.05). The prevalence of ESBL-producing Escherichia coli, CREC,CRAB complex and CRKP were higher in provincial hospitals than those in municipal hospitals( χ2=12.5,9.8,12.7 and 57.8,all P<0.01). Conclusions:Gram-negative bacteria are the main pathogens causing bloodstream infections in China,and Escherichia coli is ranked in the top,while the trend of Klebsiella pneumoniae increases continuously with time. CRKP infection shows a slow upward trend,CREC infecton maintains a low prevalence level,and CRAB complex infection continues to exhibit a high prevalence rate. The composition and resistance patterns of pathogens causing bloodstream infections vary to some extent across different regions and levels of hospitals in China.
6.Prognostic analysis of imaging features of coronary artery anomalous origin from the opposite sinus in middle-aged and elderly patients
Hui WEI ; Wei BAO ; Xiaoqin HU ; Hanmo BAO ; Liqi GE ; Fei LI ; Chaoqun ZHANG ; Zhirong WANG ; Chengzong LI
Chinese Journal of Cardiology 2025;53(12):1392-1397
Objective:To investigate the impact of imaging anatomical features on the prognosis of middle-aged and elderly patients with anomalous coronary artery originating from the opposite sinus (ACAOS).Methods:This retrospective cohort study enrolled patients aged ≥45 years who were diagnosed with ACAOS by coronary computed tomography angiography (CTA) at the Affiliated Hospital of Xuzhou Medical University between January 1, 2011, and December 31, 2018. Baseline clinical data and coronary CTA images were collected. Anatomic imaging features were extracted, including ACAOS subtype, course of the anomalous vessel, and ostial angle. The primary endpoint was major adverse cardiovascular events (MACE), defined as a composite of acute myocardial infarction, cardiac death, and coronary revascularization. The Maxstat method was used to determine the cut-off values of specific anatomical features for predicting MACE risk. Cox proportional hazards models were employed to analyze the impact of these imaging features on MACE in middle-aged and elderly ACAOS patients.Results:A total of 203 patients were enrolled, aged (60.0(51.0, 66.0)) years, including 119 (58.6%) males. Over a follow-up of (98.2±30.9) months, 39 patients experienced MACE. Maxstat identified an optimal cut-off value of 34.3° for the ostial angle of the anomalous vessel. Multivariable Cox proportional hazards regression analysis revealed that the following factors were independent risk factors for MACE: left-sided ACAOS subtype ( HR=4.35, 95% CI 2.17-8.73, P<0.001), an interarterial course between the aorta and pulmonary artery ( HR=3.21, 95% CI 1.23-8.37, P=0.017), an anomalous vessel ostial angle <34.3° ( HR=2.62, 95% CI 1.18-5.77, P=0.017), and concomitant coronary artery disease ( HR=2.92, 95% CI 1.49-5.73, P=0.002). Conclusion:In middle-aged and elderly patients with ACAOS, the imaging anatomical features of a left-sided ACAOS subtype, an interarterial course, and an ostial angle <34.3° are independent risk factors for MACE.
7.Clinical Significance of Unipolar Electrogram and Bipolar Electrogram in Guiding Radiofrequency Ablation of Outflow Tract Ventricular Premature Contraction
Liqi GE ; Xiaoqin HU ; Fei LI ; Wensu CHEN ; Hui WEI ; Quan ZHANG ; Baixiang ZHANG ; Chaoqun ZHANG ; Zhirong WANG ; Chengzong LI
Chinese Circulation Journal 2025;40(5):480-485
Objectives:We evaluated the clinical significance of unipolar electrogram and bipolar electrogram in guiding radiofrequency ablation for outflow tract ventricular premature contractions(PVC).Methods:Data were collected from 78 patients who underwent successful radiofrequency ablation of PVC.Pre-procedure electrocardiogram showed a LBBB morphology on inferior leads.In the included patients,the right-side ablation was performed at first,and if the ablation failed,the left-side ablation was then performed.According to the location of the successful ablation target,they were divided into unilateral ablation successful group and bilateral ablation successful group.The differences in the earliest bipolar local activation to QRS(LATBi),unipolar-dV/dTmax to QRS(LATUni),and local activation time were compared between the two groups.Furthermore,the electrogram characteristics predicting bilateral ablation were explored.Results:Patients were divided into unilateral ablation group(n=57)and bilateral ablation group(n=21)according to the ablation site.There were statistically significant differences in LATBi(25[21,30]ms vs.14[10,24]ms),LATUni(7[0,17]ms vs.-23[-41,-11]ms),and ΔLATBi-Uni(15[11,25]ms vs.44[25,56]ms)between the unilateral ablation group and the bilateral ablation group(all P<0.05).Multivariate regression analysis suggested that LATBi,LATUni,and ΔLATBi-Uni were independent predictors of the need for bilateral ablation.There was no significant difference between left and right LATBi,LATUni and ΔLATBi-Uni in the bilateral ablation group.LATUni≤-1 was the most accurate parameter for predicting the need for bilateral ablation(AUC=0.941;specificity 80.7%;sensitivity 100%).Conclusions:LATUni≤-1ms is a useful indicator for predicting the need for bilateral PVC ablation in this patient cohort.
8.The safety and efficacy of urinary microbiota transplantation in the treatment of interstitial cystitis
Bo LIU ; Yuwei ZHANG ; Lili ZHANG ; Xinyu XU ; Yang WANG ; Hao LIN ; Chaoqun GU ; Peng JIANG ; Yifan SUN ; Ninghan FENG
Chinese Journal of Urology 2025;46(6):421-429
Objective:To investigate the safety and efficacy of urinary microbiota transplantation(UMT)in treating interstitial cystitis(IC).Methods:A retrospective analysis of the clinical data of three patients with IC treated with UMT at the Central Hospital of Jiangnan University from May 2022 to August 2024. Three women(45,62,79 years)presented with urinary frequency(10 - 90 min intervals),urgency,dysuria,lower abdominal pain,and non-organic sleep disorder,with nocturia(2 - 15 episodes)causing sleep difficulty. Disease durations were 3,6,and 21 years. Prior antibiotic therapy failed. Preoperative urinalysis/culture(x2)ruled out bacterial cystitis,and diagnosed as interstitial cystitis(IC),with one of transient positive urine culture. Preoperative scores for case 1 were self-rating depression scale(SDS)of 49,self-rating anxiety scale(SAS)of 31,interstitial cystitis symptom index(ICSI)of 5,interstitial cystitis problem index(ICPI)of 2,brief urological problem scale of 50,genitourinary pain assessment scale of 10,and pain catastrophizing scale(PCS)of 0. For case 2,the scores were 60 of SDS,66 of SAS,9 of ICSI,11 of ICPI,50 of brief urological problem scale,28 of genitourinary pain assessment scale,and 34 of PCS. For case 3,the scores were 44 of SDS,48 of SAS,11 of ICSI,5 of ICPI,33 of brief urological problem scale,27 of genitourinary pain assessment scale,and 21 of PCS. Preoperative bladder hydro-distention showed mucosal hemorrhage including central block hemorrhage(Case 1),numerous spots(Case 2),and distinct sheets(Case 3). Preoperative urine 16S rRNA sequencing revealed low diversity,increased Gardnerella/ Bacteroides(opportunistic),and decreased Bacillus/ Streptococcus(beneficial). Two healthy young female donors had normal comprehensive tests covering blood/urine/stool,coagulation,CRP,immunity,liver/kidney function,lipids,infectious diseases,hormones,tumor markers,urine culture,TOUCH,and expanded quantitative urine culture. Donor urine 16S rRNA showed low pathogenic( Gardnerella/ Bacteroides)abundance. Donor midstream morning urine was catheter-collected,centrifuged,and the bacterial pellet resuspended in saline. Recipients underwent bladder irrigation pre-UMT. On UMT day,donor bacterial suspension was instilled via catheter with adverse event monitoring. Follow-up included clinic visits at 1 month and 1 year for symptom assessment,scale scoring,cystoscopy evaluating mucosal inflammation,hydrodistension checks,and telephone tracking of urinary symptoms every 2 - 3 months. Prognosis was assessed by symptom relief,scale score reduction,and mucosal recovery. Results:No adverse reactions occurred within 24 hours post-UMT in all 3 cases. Two patients showed same-day urinary urgency reduction;three reported relief from urinary frequency/urgency on postoperative day 7,with 2 - 3 hour daytime intervals and 0 - 5 nocturnal voids. Two patients experienced lower abdominal pain alleviation. Postoperative Week 1 urinalysis and urine cultures revealed no abnormalities. The 16S rRNA test showed a decrease in the abundance of harmful bacteria(e.g., Cupriavidus,Ureaplasm,Mycobacterium,Pseudomonas)and an increase in the abundance of beneficial bacteria( Dietzia,Halomonas,and Streptococcus),and the overall urobacterial structure was significantly improved and similar to that of the donor. Case 1 was followed up for 20 months,and the lab tests were normal,with SDS scales of 38,SAS of 20,ICSI of 3,ICPI of 2,brief urological problem scale of 44,genitourinary pain assessment scale of 10,PCS of 0,at 9 months post-op follow-up,indicating physical and mental improvement. The bladder hydro-distention revealed intact mucosa with only mild inflammation,which improved versus preoperative situation. Case 2 was followed up for 15 months,and the lab tests were normal,with SDS scales of 44,SAS of 34,ICSI of 4,ICPI of 2,brief scale of urinary problems of 0,genitourinary pain assessment scale of 9,PCS of 7,at 2 months post-op follow-up,showing improved anxiety/depression and quality of life. The hydro-distention showed decreased scattered hemorrhagic dots and mucosal inflammation. Case 3 was followed up for 13 months,with an increased leukocytes of urine and the other being normal for lab tests,and SDS scales of 35,SAS of 46,ICSI of 13,ICPI of 13,brief scale of urinary problems of 10,genitourinary pain assessment scale of 33,PCS of 11,at 13 months post-op follow-up,indicating physical and mental improvement. The hydro-distention revealed mucosal congestion,marked submucosal vasodilation,and inflammation decreased compared with preoperative situation. Conclusions:UMT alleviates urinary frequency,urgency,and pain in IC patients with sustained effects,significantly improves urine microecology,and shows no adverse events,positioning it as a viable intervention for IC.
9.Current Status and Correlated Factors of Fall Risk Among Chinese Elderly Aged 60-79:A 2024 Nationwide Cross-Sectional Analysis
Jiarong ZHU ; Jingjing WANG ; Chaoqun FAN ; Xu ZHANG ; Qiang FENG
Medical Journal of Peking Union Medical College Hospital 2025;16(3):606-616
To investigate the prevalence and associated factors of fall risk among Chinese older adults, and to examine the roles of urban-rural differences, regional disparities, physical health status, and psychosocial factors in falls among this population, thereby providing evidence for tailored fall prevention strategies. Using data from the 2024 National Routine Physical Fitness Surveillance, a multi-stage stratified sampling method was employed to recruit community-dwelling older adults aged 60-79 years across China. High fall-risk individuals were identified using the Chinese version of the self-rated fall risk questionnaire, while demographic, physical health, and psychological indicators were collected via questionnaires and objective measurements. A generalized linear mixed model (GLMM) with province as a random effect was used to analyze fall risk factors. Among 7000 eligible participants (male: 44.2%, female: 55.8%), the sample comprised 2124 (60-64 years), 2014 (65-69 years), 1660 (70-74 years), and 1202 (75-79 years) individuals, with 58.4% from rural and 41.6% from urban areas. A total of 733(10.5%) were identified as high fall-risk, with higher prevalence among females (10.9%), urban residents (11.5%), and the oldest age group (75-79 years: 12.4%). GLMM random-intercept logistic regression revealed that advanced age ( The prevalence of high fall risk among Chinese community-dwelling older adults aged 60-79 years is 10.5%. Fall risk demonstrates significant associations with multiple factors including muscle strength, movement patterns, sleep quality, and social support. Strategies enhancing grip strength, promoting regular exercise and high-intensity leisure activities, improving sleep quality, fostering spousal support, and boosting life satisfaction may substantially reduce fall risk in this population.
10.Investigation and analysis of CT medical exposure frequency and dose burden of residents in Shantou City, China
Wenhua HUANG ; Xiaoer ZHANG ; Chaoqun ZHAO ; Weichun DENG ; Shaoshan HUANG
Chinese Journal of Radiological Health 2025;34(2):225-230
Objective To investigate the frequency and dose of X-ray computed tomography (CT) medical exposure in Shantou City, and to evaluate the collective effective dose burden of residents caused by CT medical exposure. Methods The study subjects were selected using the stratified random sampling method from CT scanners in all medical institutions in Shantou City in 2020. CT application units were divided into the four tiers of municipal hospitals, district hospitals, subdistrict hospitals, and private hospitals, and 50% of the hospitals in each tier were randomly selected according to the number of hospitals in the tier. The study analyzed CT dose index results, CT scanning standard conditions, and the distribution of characteristic doses of medical exposure to evaluate the dose burden of residents in Shantou City caused by CT medical exposure. Results There were 51 CT scanners in medical institutions in Shantou City. By the end of 2020, the average number of CT scanners per million population was 9.30, and the frequency of CT medical exposure was 135.24 per

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