1.A Comparative Study of Artificial Intelligence-based Classification Versus Manual Classification of Medical Adverse Events: Taking the DeepSeek Large Language Model As an Example
Rui WANG ; Xutong TAN ; Congpu ZHAO ; Shuchang WANG ; Zheng CHEN ; Xiaojun MA ; Zhiling CAI
Medical Journal of Peking Union Medical College Hospital 2026;17(3):828-833
To analyze the application value of artificial intelligence (AI)-based classification in the categorization of medical adverse events. Medical adverse events reported to the Adverse Event Reporting System of Peking Union Medical College Hospital from September 1, 2023, to August 31, 2024, were retrospectively collected as the study subjects. After de-identification of adverse events meeting the inclusion criteria, conventional manual classification and AI-based classification using a large language model (DeepSeek-R1 Full-Context Internet Edition) were performed. The time required for classification using both methods was recorded, and the consistency and discrepancies between the two methods were compared. Using manual classification as the gold standard, the accuracy of AI-based classification was comprehensively evaluated. A total of 273 medical adverse events were analyzed. Manual classification took 38 838 seconds in total, with an average of 14.22 seconds per event. AI-based classification took 600 seconds in total, with an average of 2.19 seconds per event. The two methods showed consistent classification in 202 events and inconsistent classification in 71 events, yielding an overall agreement rate of 73.99% and a Kappa coefficient of 0.646 (95% CI: 0.575-0.717), with a standard error of 0.0362. Using manual classification as the gold standard, AI-based classification achieved accuracy ranging from 80% to 100%, precision from 30% to 100%, recall from 40% to 100%, F1 scores from 0.46 to 0.79, and specificity from 46% to 98%. Notably, AI-based classification demonstrated balanced and overall excellent performance in the categorization of device-related and drug-related adverse events. The DeepSeek large language model can assist in improving the efficiency of medical adverse event classification, showing promising application potential, particularly in the categorization of device-related and drug-related adverse events.
2.Efficacy of single and double platelet-rich plasma treatment for diminished ovarian reserve.
Enuo PENG ; Miao AI ; Xiaojun TAN ; Xingping ZHAO ; Dabao XU
Journal of Central South University(Medical Sciences) 2025;50(1):45-51
OBJECTIVES:
Platelet-rich plasma (PRP) treatment has been reported to improve ovarian function in women, but the relationship between the dose and frequency of PRP treatment and its therapeutic effect remains unclear. This study aims to evaluate the efficacy of single and double PRP treatments for diminished ovarian reserve (DOR).
METHODS:
A total of 65 patients treated at the Reproductive Center of Xiangtan Central Hospital from September 2020 to October 2022 were randomly divided into 4 groups: A single PRP treatment group (21 patients, PRP treatment once), a double PRP treatment group (15 patients, PRP treatment twice), a blank control group (15 patients), and an artificial cycle control group (14 patients, treated with estrogen and progesterone). The differences in baseline follicle-stimulating hormone (FSH), antral follicle count (AFC), ovarian volume, number of oocytes retrieved, number of good quality embryos, and pregnancy outcomes before and after treatment were compared among the 4 groups.
RESULTS:
Compared to before treatment, both single and double PRP treatment groups showed a significant reduction in FSH, and an increase in AFC, ovarian volume, numbers of oocytes retrieved, and number of MII oocytes (all P<0.05). Compared to the blank control group, the single and double PRP groups showed a decrease in FSH, with an increase in AFC, number of oocytes retrieved, and number of MII oocytes (all P<0.05). The rates of good quality embryos, clinical pregnancy rate, and live birth rate in the single and double PRP groups were higher than those in the blank control group and artificial cycle control groups, but the differences were not statistically significant (all P>0.05). Compared to the single PRP treatment group, the double PRP group had lower FSH and higher AFC, but the differences were not statistically significant (both P>0.05).
CONCLUSIONS
Both single and double PRP ovarian injections can effectively improve ovarian reserve function in DOR patients and enhance ovarian response. Compared to single PRP ovarian injection, double PRP ovarian injection shows a trend of better improvement in ovarian reserve function.
Humans
;
Female
;
Platelet-Rich Plasma
;
Ovarian Reserve/physiology*
;
Adult
;
Pregnancy
;
Follicle Stimulating Hormone/blood*
;
Pregnancy Rate
;
Ovary
;
Ovulation Induction/methods*
;
Ovarian Follicle
;
Oocyte Retrieval
3.The association between secondhand smoke exposure and overweight/obesity among children and adolescents
Jia WEI ; Jiayou LUO ; Yanhua CHEN ; Fei WANG ; Yaqing TAN ; Miyang LUO ; Xiaojun LI
Chinese Journal of Preventive Medicine 2025;59(1):69-75
This study aimed to investigate the association between secondhand smoke exposure in different places and overweight/obesity among children and adolescents. Children and adolescents aged 7 to 18 years old in Hunan Province were recruited for questionnaire surveys and physical examinations using a multi-stage stratified cluster sampling method. Secondhand smoke exposure was evaluated according to the answer to the question, "Has someone smoked in front of you in the last 7 days?". Overweight and obesity were determined using BMI-for-age and BMI-for-sex according to the national standard WS/T586-2018. Multivariate logistic regression was used to explore the association between secondhand smoke exposure in different places and overweight/obesity among children and adolescents. A total of 187 863 participants were included in this study, with a prevalence of overweight and obesity of 28.4%. The prevalence of secondhand smoke exposure at home, school and other public places was 25.5%, 12.6% and 32.3%, respectively. Children and adolescents with secondhand smoke exposure at home, school and other public places had a higher prevalence of overweight and obesity than those without exposure. After adjusting for confounding factors, secondhand smoke exposure was positively associated with overweight and obesity among children and adolescents, and exposure at home showed the closest association ( OR=1.091; 95% CI: 1.066-1.117). In conclusion, secondhand smoke exposure, especially at home, significantly increases the risk of overweight and obesity among children and adolescents. Comprehensive strategies should be implemented to avoid secondhand smoke exposure and protect children and adolescents from overweight and obesity.
4.The association between secondhand smoke exposure and overweight/obesity among children and adolescents
Jia WEI ; Jiayou LUO ; Yanhua CHEN ; Fei WANG ; Yaqing TAN ; Miyang LUO ; Xiaojun LI
Chinese Journal of Preventive Medicine 2025;59(1):69-75
This study aimed to investigate the association between secondhand smoke exposure in different places and overweight/obesity among children and adolescents. Children and adolescents aged 7 to 18 years old in Hunan Province were recruited for questionnaire surveys and physical examinations using a multi-stage stratified cluster sampling method. Secondhand smoke exposure was evaluated according to the answer to the question, "Has someone smoked in front of you in the last 7 days?". Overweight and obesity were determined using BMI-for-age and BMI-for-sex according to the national standard WS/T586-2018. Multivariate logistic regression was used to explore the association between secondhand smoke exposure in different places and overweight/obesity among children and adolescents. A total of 187 863 participants were included in this study, with a prevalence of overweight and obesity of 28.4%. The prevalence of secondhand smoke exposure at home, school and other public places was 25.5%, 12.6% and 32.3%, respectively. Children and adolescents with secondhand smoke exposure at home, school and other public places had a higher prevalence of overweight and obesity than those without exposure. After adjusting for confounding factors, secondhand smoke exposure was positively associated with overweight and obesity among children and adolescents, and exposure at home showed the closest association ( OR=1.091; 95% CI: 1.066-1.117). In conclusion, secondhand smoke exposure, especially at home, significantly increases the risk of overweight and obesity among children and adolescents. Comprehensive strategies should be implemented to avoid secondhand smoke exposure and protect children and adolescents from overweight and obesity.
5.Effects of berberine combined with quercetin on rats with polycystic ovary syndrome based on TLR4/NF-κB signaling pathway
Han YANG ; Siyi LIN ; Jiazhe TAN ; Zeqian MA ; Xiaojun ZHANG ; Lemei ZHU
Chongqing Medicine 2024;53(23):3540-3545,3551
Objective To investigate the effects of berberine combined with quercetin on the rats with polycystic ovary syndrome(PCOS)based on toll-like recepter 4(TLR4)/nuclear-factor-KB(NF-κB)signaling pathway.Methods Thirty SD female rats were stratified by weight and then randomly divided into the blank control group,model control group,berberine group,quercetin group and berberine+quercetin group,6 rats in each group.The rats conducted daily subcutaneous injection of dehydroepiandrosterone(DHEA)for con-structing the PCOS model.After consecutive medication intervention for 21 d,the body weight and ovary mass of the rats in each group were weighed,and the hematoxylin-eosin(HE)staining was used for conducting the histological morphological observation on ovarian tissues.Enzyme-linked immunosorbent assay(ELISA)was used to detect the levels of serum luteinizing hormone(LH),follicle stimulating hormone(FSH),testosterone(T),interleukin-6(IL-6)and tumor cytokine alpha(TNF-α).The Western blot was used to determine the relative levels of TLR4 and NF-κB protein.Results Compared with the blank control group,the ovaries in the model control group were manifested by polycystoid,atretic follicles increase,body weight and ovarian mass increase(P<0.01),the increase of LH,T,IL-6 and TNF-α levels(P<0.01),decrease of FSH level(P<0.01)and increase of TLR4 and p-NF-κBp65 protein expression levels(P<0.01).Compared with the model control group,the ovarian cystic dilatation in the berberine group,quercetin group and the berberine+querce-tin group was decreased,the atretic follicles were decreased,the local ovarian morphology was similar to that of the blank control group.Compared with the model control group,the body weight in the berberine group was decreased(P<0.05),the levels of LH,T,IL-6 and TNF-α in the berberine group and quercetin group were decreased(P<0.01),the levels of TLR4 and p-NF-κBp65 protein expression were decreased(P<0.01)and the ovarian mass was reduced(P<0.01).But the FSH and the body weight level had no statistical differ-ence between the berberine group and quercetin group(P>0.05).The body mass and ovarian mass in the berberine+quercetin group were decreased(P<0.01),the FSH level was increased(P<0.01),the LH,T,IL-6 and TNF-α levels were decreased(P<0.01),and the TLR4 and p-NF-κBp65 protein expression levels were decreased(P<0.01).Conclusion Berberine combined with quercetin may regulate the FSH,LH and T hormone secretion,decrease the release of IL-6 and TNF-α inflammatory factors and improve the ovarian func-tion possibly by inhibiting the TLR4/NF-κB signaling pathway.
6.Epidemiological investigation of an incident of suspected intentional transmission of AIDS
CHU Kun ; SHI Xiaojun ; JIANG Haibo ; PEI Xueli ; TAN Shiwen ; SHI Hongbo ; YE Zehao ; YANG Jianhui ; ZHANG Dandan
Journal of Preventive Medicine 2024;36(3):232-234
Abstract
On 18 May 2021, the Center for Disease Control and Prevention (CDC) of X District in P City, Z Province received a co-investigation of a suspected case of intentional HIV transmission from the public security branch, and conducted epidemiological investigations on Zhao and Wang (both males). Wang was confirmed HIV-positive in 2019. Zhao had unprotected sexual encounters several times with Wang in March 2021 without being informed of Wang's HIV infection. Zhao developed fever, sore throat and other symptoms of acute infection phase on 28 March, and were confirmed HIV positive by the CDC of P City on 11 May. Zhao did not have sex with anyone else before or after having sex with Wang. In addition, Zhao had no history of surgery, blood transfusions, drug use or any other history of HIV exposure. Laboratory tests conducted by the CDC of Z Province showed that the HIV nucleic acid sequences between the samples of Zhao and Wang had a high degree of homology. Combined with the epidemiological investigation, laboratory testing and the evidence from the public security branch, it was concluded that Wang intentionally transmitted HIV to Zhao through unprotected anal sex without disclosing his HIV infection status.
7.An Empirical Study on the Use of Diagnosis Related Group Tools for Grouping Adjustments in Large Public Hospitals
Guojie ZHANG ; Xutong TAN ; Zhiling CAI ; Qiang XU ; Weifeng XU ; Yihang CHEN ; Yating WANG ; Jinhan LIU ; Zheng CHEN ; Jiong ZHOU ; Xiaojun MA
Medical Journal of Peking Union Medical College Hospital 2024;15(5):1052-1058
To analyze the disease group structure and its trends in key departments of large public hospitals using diagnosis related group (DRG) data, explore the key points of intervention and optimization of disease groups in departments, and further promote the rational allocation of department resources. We retrospectively collected DRG data from two surgical departments in a large public hospital in Beijing from 2017 to 2023. When the case mix index (CMI) of the two surgical departments declined, interventions such as performance appraisal, department education, and hospital publicity were promptly adopted. The changesin CMI values were observed and the trends in disease group weights, time consumption index, cost consumption index, and mortality rate in low-risk groups were analyzed. After the interventions, in surgical department Ⅰ, the proportion of patients with lower-weight diseases, such as major thyroid surgery (KD1), significantly decreased, while that of patients with higher-weight diseases, such as colorectal malignancy surgery (GB2) and pancreatic malignancy surgery (HB1), significantly increased. In surgical department Ⅱ, the proportion of patients with lower-weight diseases, such as chemotherapy (RE1), decreased markedly, while that of patients with higher-weight diseases, including major surgery for malignancy of kidney, ureter, and bladder (LA1), adrenal gland surgery (KC1), surgery for kidney/ureter/bladder except for major malignancy surgery (LB1), and male genital organ malignancy surgery (MA1), increased significantly. Both surgical departments achieved the goal of increasing their CMI values. In terms of efficiency, cost, and quality indicators, the time consumption index and cost consumption index of the two surgical departments were significantly lower than 1, and the mortality rate in low-risk groups was 0. Based on actual conditions and development goals, large public hospitals can achieve improvements in CMI values and optimization of disease group structures through reasonable interventions, thereby enhancing medical efficiency and rational utilization of resources.
8.With CHS-DRG Grouping Payment Scheme Significantly Upgraded, How Should Medical Institutions Respond?
Guojie ZHANG ; Jiong ZHOU ; Xutong TAN ; Xiaojun MA ; Zhi WANG ; Qing CHANG
Medical Journal of Peking Union Medical College Hospital 2024;15(5):999-1005
In July 2024, the National Healthcare Security Administration issued "Notice on Printing and Distributing the 2.0 Edition Grouping Scheme for Diagnosis Related Group(DRG) and Disease-based Payment and Further Advancing Related Work, " marking the official entry of China's DRG payment reform into the 2.0 era. In the 2.0 edition of the DRG grouping scheme, the number of DRGs has increased by six groups, and that of the adjacent DRGs has increased by 33 groups, featuring more scientific and reasonable grouping that aligns better with clinical practice. The National Healthcare Security Administration has also clarified five supporting management mechanisms, including the special case negotiation mechanism, the fund prepayment mechanism, the negotiation and consultation mechanism, the feedback mechanism for opinion collection, and the data disclosure mechanism. These are aimed at optimizing the management of DRG payment reform to ensure a win-win situation for medical institutions, healthcare security departments, and patients. The release of the DRG 2.0 edition provides medical institutions with more refined management tools and a more reasonable paymentmechanism. Medical institutions need to actively embrace this reform, optimize internal management, and improve service quality to achieve cost control and efficiency enhancement, ultimately leading to a win-win situation for patients, healthcare security funds, and medical institutions.
9.Risk factors and risk model construction of coronary heart disease in patients with type 2 diabetes mellitus in Suining area
Tao HE ; Zhen TAN ; Gang HUANG ; Xiaojun HE ; Xue DENG
Journal of Public Health and Preventive Medicine 2023;34(3):102-105
Objective To analyze the risk factors of coronary heart disease (CHD) in patients with type 2 diabetes mellitus (T2M) in Suining area, and build a risk prediction model to provide theoretical basis for the prevention and treatment of CHD in PATIENTS with T2M. Methods A total of 476 T2M patients treated in our hospital from January 2021 to December 2021 were selected and divided into experimental group (n=79) and control group (n=397) according to whether they had coronary heart disease. The angiographic characteristics of coronary artery lesions in patients with T2M combined with coronary heart disease were observed. Age, sex, body mass index (BMI), smoking, alcohol consumption , T2M course, FBG, FINS, HOMA, TC, LDL-C, SBP, DBP and UA levels of all patients were analyzed. Univariate analysis and Logistic regression were used to analyze the influencing factors of coronary heart disease and establish a risk prediction model. ROC curve was used to predict the efficiency of the model. Results A total of 79 cases (16.60%) of patients with T2M complicated with coronary heart disease, including 64 cases (81.01%) of patients with T2M complicated with coronary artery disease. Mild stenosis in 5 cases (6.33%), moderate stenosis in 20 cases (25.32%) and severe stenosis in 54 cases (68.35%); The mean age, smoking proportion, BMI, T2M course and the levels of FBG, FINS, HOMA-IR, TC, LDL-C, SBP, DBP and UA in experimental group were significantly higher than those in control group (P<0.05). Multivariate logistic regression analysis showed that advanced age, increased SBP, increased LDL-C, and increased FBG were independent risk factors for CORONARY heart disease in T2M patients in Suining area (OR=1.476 , 2.674 , 2.984 , 3.572 , P<0.05). According to the above four independent factors and their corresponding regression coefficients, the expression of risk prediction model was P=1/[1+e-(-0.513+0.919×(old age)+1.129×(increased SBP)+ 1.724×(increased FBG)+ 1.529×(increased LDL-C)]. ROC curve was used to analyze the predictive performance of the regression model. The results showed that the AUC of the risk prediction model for coronary heart disease in T2M patients was 0.728, 95% CI (0.651-0.829). Conclusions T2M patients in Suining have a high risk of coronary heart disease. For elderly patients with elevated SBP, LDL-C and FBG, the risk of coronary heart disease can be assessed by predictive model and targeted intervention measures can reduce the risk of coronary heart disease in T2M patients.
10.Efficiency of "short time sampling" in noninvasive preimplantation genetic testing: a prospective study
Jiao LIN ; Bing XIE ; Jianping ZENG ; Xiaojun TAN ; Ke PENG ; Zhenyu ZUO ; Yankun HE ; Xianghong HUANG
Chinese Journal of Reproduction and Contraception 2023;43(8):825-829
Objective:To explore the efficiency of "short time sampling" for noninvasive preimplantation genetic testing (ni-PGT).Methods:A prospective study was conducted. The blastocysts of patients who were treated by preimplantation genetic testing for aneuploidy (PGT-A) in the Reproductive Center of Xiangtan Central Hospital from March 2021 to June 2022 were biopsied, meanwhile the spent culture medium (SCM) were collected. According to the different sampling methods for SCM, they were divided into two groups, direct sampling method and "short time sampling". The coincidence rate between ni-PGT and PGT-A was analyzed and compared statistically.Results:Totally 108 blastocysts from 36 couples were biopsied and SCMs were collected, including 59 cases of direct collection and 49 cases of "short time sampling". The area under curve (AUC) of direct collection method for diagnosing embryo ploidy was lower than that of "short time sampling" (0.628 vs. 0.785). Conclusion:The efficiency of "short time sampling" in diagnosing embryo ploidy is better than that of direct collection method.


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