1.Application of time series and machine learning models in predicting the trend of sickness absenteeism among primary and secondary school students in Shanghai
WANG Zhengzhong, ZHANG Zhe, ZHOU Xinyi, YUAN Linlin, ZHAI Yani, SUN Lijing, LUO Chunyan
Chinese Journal of School Health 2025;46(3):426-430
Objective:
To analyze the temporal variation patterns of sickness absenteeism among primary and secondary school students in Shanghai, so as to explore models suitable for predicting peaks and intensity of absenteeism rates.
Methods:
The seasonal and trend decomposition using loess (STL) method was used to analyze the seasonal and long term trend changes in sickness absenteeism among primary and secondary school students from September 1 in 2010 to June 30 in 2018, in Shanghai. A hierarchical clustering method based on Dynamic Time Warping (DTW) was employed to classify absenteeism symptoms with similar temporal patterns. Based on historical data, the study constructed and evaluated different time series algorithms and machine learning models to optimize the accuracy of predicting the trend of sickness absenteeism.
Results:
During the research period, the average new absenteeism rate due to illness was 16.86 per 10 000 person day for every academic year, and the trend of sickness absenteeism exhibited both seasonality and a long term upward trend, reaching its highest point in the 2017 academic year (22.47 per 10 000 person day). The symptoms of absenteeism were divided into three categories: high incidence in winter and spring (respiratory symptoms, fever and general discomfort, etc.), high incidence in summer (eye symptoms, nosebleeds, etc.) and those without obvious seasonality (skin symptoms, accidental injuries, etc.).The constructed time series models effectively predicted the trend of absenteeism due to illness, although the accuracy of predicting peak intensity was relatively low. Among them, the multi layer perceptron (MLP) model performed the best, with an root mean squared error (RMSE) of 8.96 and an mean absolute error (MAE) of 4.37, reducing 36.51% and 39.02% compared to the baseline model.
Conclusion
Time series models and machine learning algorithms could effectively predict the trend of sickness absenteeism, and corresponding prevention and control measures can be taken for absenteeism caused by different symptoms during peak periods.
2.Surveillance results of respiratory syncytial virus outbreaks in kindergarten and school in Shenzhen, 2017-2023
WANG Xin, FANG Shisong, WU Weihua, LIU Hui, SUN Ying, ZOU Xuan, TANG Xiujuan
Chinese Journal of School Health 2025;46(3):435-437
Objective:
To analyze respiratory syncytial virus(RSV) outbreaks surveillance results and the epidemiological characteristics in kindergarten and school in Shenzhen during 2017-2023 , so as to provide a scientific reference for control and prevention of RSV.
Methods:
Epidemiological data and surveillance results of RSV outbreaks in kindergarten and school from 2017 to 2023 were collected for descriptive analyses.
Results:
A total of 31 RSV outbreaks were identified in kindergarten and school in 2017-2023 in Shenzhen, 346 cases were reported, the average incidence rate was 22.02%. The most annual RSV outbreaks were reported in 2020 with 14 outbreaks, followed by 8 outbreaks in 2023. A total of 64.52% of RSV outbreaks were identified in kindergarten with rest occurring in primary school or middle school. The greatest monthly count of outbreak was 18 (58.06%) in September, followed by 3 outbreaks (9.68%) in March and October. A total of 244 swab samples were collected, 169 samples were positive for respiratory viruses, the positive rate was 69.26%, 121 samples were positive for RSV,from 31 respiratory syncytical virus outbreaks 57 and samples were positive for other respiratory viruses(9 samples were positive for two respiratory viruses). A toral of 14(45.16%) outbreaks are caused by RSV alone, 17 outbreaks (54.84%) were caused by RSV and other respiratory viruses.
Conclusions
Most RSV outbreaks in kindergarten and school are reported after 2020 in Shenzhen, most RSV outbreaks occur in kindergarten, peak seasons of RSV outbreaks are autumn and spring.
3.Construction of evaluation index system of infectious disease prevention and control ability in colleges and universities
Chinese Journal of School Health 2025;46(3):438-442
Objective:
To construct a scientific and perfect evaluation index system of infectious disease prevention and control ability in colleges and universities, so as to provide reference tools for colleges and universities to effectively respond to infectious disease.
Methods:
The initial framework of the evaluation index system of infectious disease prevention and control ability in colleges and universities was constructed by using literature analysis method. Experts familiar with infectious disease prevention and control or school health work were selected to conduct two rounds( n =16,18) of Delphi expert consultation for determining the evaluation index system. Analytical hierarchy process was used to calculate the index weights and combined weights. About 198 prevention and control personnel were conveniently selected from 3 universities in Inner Mongolia Autonomous Region to comprehensively evaluate the evaluation indicators by using fuzzy comprehensive evaluation method.
Results:
After two rounds of Delphi consultation questionnaire, the effective recovery rates were 80.0% and 90.0%, the expert authority levels were 0.89 and 0.86, the expert harmony coefficients for Kendall W were 0.166 and 0.310, and the variation coefficient of each index was <0.25. Finally, the evaluation index system of infectious disease prevention and control ability of colleges and universities included 4 first level indicators, 14 second level indicators and 75 third level indicators. The weights of prevention and monitoring and early warning, organizational system guarantee, emergency management, rehabilitation and summary were 0.176, 0.476, 0.268 and 0.080, respectively. The top 3 weights of the secondary indexes were 0.623 for infectious disease surveillance and early warning, 0.595 for loss assessment and 0.370 for emergency response. The score of fuzzy comprehensive evaluation of the index system of infectious disease prevention and control ability in colleges and universities was 79.148, suggesting a high level.
Conclusion
The established evaluation index system of infectious disease prevention and control ability in colleges and universities is scientific and reasonable, which is conducive to provide tool reference for the evaluation of infectious disease prevention and control ability in colleges and universities.
4.Association of outdoor light at night with obstructive sleep apnoea: A cross-sectional study among adults in Southern China
Suhan WANG ; Gongbo CHEN ; Yan CHEN ; Hailin XIONG ; Qiong OU
Journal of Environmental and Occupational Medicine 2025;42(3):334-341
Background Obstructive sleep apnea (OSA) is a sleep disorder characterized by recurrent episodes of obstruction of the upper airway during sleep. Given the substantial number of OSA patients, it is urgently in need to address the burden on society. Current available evidence linking outdoor light at night (LAN) to OSA is scarce. Objective To explore the relationships regarding outdoor LAN and OSA among residents in Southern China. Methods A total of
5.Practice and analysis of implementing drug traceability code management in outpatient pharmacy
Liwen LIAO ; Yuqi WANG ; Yuzi WANG ; Kang CHEN ; Shuxia LI ; Kejing TANG ; Wei YANG
China Pharmacy 2025;36(7):858-862
OBJECTIVE To explore optimization pathways for the drug traceability code management model in outpatient pharmacy workflows, providing practical evidence for enhancing the efficiency of pharmaceutical service. METHODS Taking the outpatient pharmacy of the First Affiliated Hospital of Sun Yat-sen University as the research subject, a comprehensive drug traceability system was established through three key interventions: upgrading the information system architecture [including integration of the hospital information system (HIS) with the traceability platform], workflow optimization (reorganizing the inventory-dispensing-verification tripartite process), and designing a dual-mode traceability data collection mechanism (primary data capture at dispensing stations and supplementary capture at verification stations). Operational efficiency differences before and after implementation were analyzed using the medical insurance data and service timeliness metrics in September 2024. RESULTS After the implementation of drug traceability code management, in terms of data collection: Mode Ⅰ (verification-stage capture) uploaded 26 144 records, while Mode Ⅲ (inventory-as-sales capture) uploaded 443 061 records, totaling 469 205 entries; in terms of time efficiency: average drug dispensing time increased from 28.74 s to 43.37 s (enhanced by 51%). Through dynamic staffing adjustments, patient wait time only extended from 8.04 min to 8.67 min (enhanced by 8%). CONCLUSIONS Drug traceability code management can be effectively implemented via a “system reconstruction-process reengineering-human-machine collaboration” trinity strategy, leveraging informatization (e.g., dual-mode data capture) to offset manual operation delays, which validates the feasibility of balancing national traceability demands with service efficiency in outpatient pharmacies.
6.Mechanism of Postprandial Drowsiness and the Clinical Application under the Model of Wei Qi Circulating from Yin to Yang
Pengfei KANG ; Boju SUN ; Conghui WANG ; Xiangmei CHEN
Journal of Traditional Chinese Medicine 2025;66(8):769-774
Postprandial drowsiness is a clinical condition characterized by pronounced drowsiness after meals, while The Inner Canon of Yellow Emperor (《黄帝内经》) associates this condition with wei qi (defensive qi). By analyzing the original texts of The Inner Canon of Yellow Emperor and perspectives from many medical professionals, it is found that the transition between wakefulness and sleep depends on the mutual induction of yin and yang, and that the two pathways of wei qi circulation intersect at the spleen and stomach. Based on this, the core pathogenesis of postprandial drowsiness is proposed to be either upper jiao obstruction or spleen-stomach dysfunction, leading to the stagnation of wei qi internally, then the mutual induction of yin and yang causes inward invasion of wei qi in the body, resulting in drowsiness; at this stage, the stagnated and inward invasive wei qi converges at the spleen and stomach, then merges into the circulation of zang-fu organs, rerouting through the Foot Taiyang Meridian, forming a circulation pattern described as "circulating from yin to yang". Treatment should focus on the root and branch simultaneously, with the primary goal of regulating the circulation of wei qi; facilitating its transition from yin to yang to restore the sleep-wake cycle. By proposing the model of wei qi circulating from yin to yang, this study offers novel insights on the understanding of postprandial drowsiness.
7.Exploration on Surrogate Outcome Measures in Clinical Trials of Traditional Chinese Medicine for Diabetic Kidney Disease
Can CAO ; Weiwei SUN ; Tong MA ; Yaoxian WANG
Journal of Traditional Chinese Medicine 2025;66(8):790-794
Traditional Chinese medicine (TCM) has unique advantages in alleviating the symptoms of diabetic kidney disease (DKD) and slowing its progression. However, traditional clinical trials often use the occurrence of end-stage renal disease as the end point, requiring long-term follow-up, which increases trial complexity and costs, thereby limiting the feasibility of TCM clinical studies. This paper suggested that in clinical trials of TCM for DKD, both the estimated glomerular filtration rate (eGFR) change rate (≥30%) and eGFR slope can serve as potential surrogate outcome measures. If the intervention course is short (<1 year), the eGFR change rate (≥30%) is recommended as a surrogate outcome measure, whereas in long-term interventional studies (≥1 year), the eGFR slope may be more appropriate. Furthermore, based on biochemical indicators such as eGFR slope and urinary albumin-to-creatinine ratio (UACR) change rate, integrating TCM symptom evaluation, TCM syndrome evaluation, and quality of life scales can help develop internationally recognized patient-reported outcome measures (PROMs) for TCM clinical trials, which will be a key step in enhancing the evaluation system for the effectiveness of TCM in treating DKD.
8.Status of Clinical Practice Guideline Information Platforms
Xueqin ZHANG ; Yun ZHAO ; Jie LIU ; Long GE ; Ying XING ; Simeng REN ; Yifei WANG ; Wenzheng ZHANG ; Di ZHANG ; Shihua WANG ; Yao SUN ; Min WU ; Lin FENG ; Tiancai WEN
Medical Journal of Peking Union Medical College Hospital 2025;16(2):462-471
Clinical practice guidelines represent the best recommendations for patient care. They are developed through systematically reviewing currently available clinical evidence and weighing the relative benefits and risks of various interventions. However, clinical practice guidelines have to go through a long translation cycle from development and revision to clinical promotion and application, facing problems such as scattered distribution, high duplication rate, and low actual utilization. At present, the clinical practice guideline information platform can directly or indirectly solve the problems related to the lengthy revision cycles, decentralized dissemination and limited application of clinical practice guidelines. Therefore, this paper systematically examines different types of clinical practice guideline information platforms and investigates their corresponding challenges and emerging trends in platform design, data integration, and practical implementation, with the aim of clarifying the current status of this field and providing valuable reference for future research on clinical practice guideline information platforms.
9.Theoretical Exploration of Same "Etiology-Mechanism-Syndrome-Treatment-Prevention" in Insomnia and Skin Aging
Bo XU ; Miao ZHU ; Kang SUN ; Yuan PENG ; Ping WANG ; Li YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):72-78
Sleep, skin, and health are closely interconnected. Clinically, insomnia has a high incidence and is often accompanied by or secondary to skin aging. The two conditions exhibit "different diseases with the same syndrome", significantly affecting the physical and mental health of the Chinese population. Preventing and treating skin aging by improving insomnia is an important strategy, with the principle of "treating different diseases with the same approach" serving as a crucial therapeutic guideline. However, effective clinical prevention and treatment methods for both conditions remain lacking. Traditional Chinese medicine (TCM) has a profound theoretical foundation and notable efficacy in the concurrent treatment of insomnia and skin aging, yet there are few reports on the etiology, pathogenesis, therapeutic principles, and treatment methods of their shared treatment, warranting further exploration. Based on holistic view and syndrome differentiation and treatment in TCM, this study systematically investigates the theoretical origins of the shared manifestations of insomnia and skin aging from multiple dimensions, including etiology, pathological location, pathogenesis, disease nature, and prevention and treatment strategies. As early as Huangdi's Internal Classic (Huangdi Neijing), it was recognized that mental clarity during the day, sound sleep at night, and firm, healthy skin are key indicators of external health, whereas daytime lethargy, poor sleep quality, and dry, withered skin are prominent signs of aging. Maintaining mental clarity during the day and restful sleep at night is essential for skin integrity and healthy aging. Later medical scholars proposed that the common etiology of insomnia and skin aging lies in "internal-external interactions", with the pathological location involving "the five organ systems". The primary pathogenesis includes "deficiency, fire, stagnation, phlegm, and blood stasis", while the disease nature is often characterized by "a combination of deficiency and excess". Treatment should be guided by syndrome differentiation, following the principle of balancing Yin and Yang. This theoretical exploration enriches and advances TCM understanding of disease onset and prevention, providing theoretical guidance for the clinical prevention and treatment of insomnia-associated skin aging and contributing to the realization of the "Healthy China" initiative.
10.Study on the traditional Chinese medicine syndromes in 757 cases of children with hepatolenticular degeneration based on factor analysis and cluster analysis
Daiping HUA ; Han WANG ; Qiaoyu XUAN ; Lanting SUN ; Ling XIN ; Xin YIN ; Wenming YANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):303-311
Objective:
To explore the distribution of traditional Chinese medicine (TCM) syndromes in children with hepatolenticular degeneration (Wilson disease, WD) based on factor analysis and cluster analysis.
Methods:
From November 2018 to November 2023, general information (gender, age of admission, age of onset, course of disease, clinical staging, Western medicine clinical symptoms, and family history) and TCM four-examination informations (symptoms and signs) were retrospectively collected from 757 cases of children with WD at the First Affiliated Hospital of Anhui University of Chinese Medicine, and factor analysis and cluster analysis were used to investigate TCM syndromes in children with WD.
Results:
A total of 757 children with WD were included, of which 483 were male and 274 were female; the median age at admission was 12.58 years, the median age at onset was 8.33 years, and the median course of disease was 24.37 months; clinical typing result indicated 506 cases of hepatic type, 133 cases of brain type, 99 cases of mixed-type, and 19 cases of other type; 36.46% of the children had no clinical symptoms (elevated aminotransferases or abnormalities in copper biochemistry); a total of 177 cases had a definite family history, and 10 cases had a suspected family history. Forty-three TCM four-examination information were obtained, with the top 10 in descending order being feeling listless and weak, brown urine, slow action, inappetence, dim complexion, slurred speech, angular salivation, body weight loss, hand and foot tremors, and abdominal fullness. In children with WD, the syndrome element of disease location was primarily characterized by the liver, involving the spleen and kidney, and the syndrome elements of disease nature were characterized by dampness, heat, and yin deficiency. Based on factor analysis and cluster analysis, five TCM syndromes were derived, which were, in order, syndrome of dampness-heat accumulation (265 cases, 35.01%), syndrome of yin deficiency of the liver and kidney (202 cases, 26.68%), syndrome of liver hyperactivity with spleen deficiency (185 cases, 24.44%), syndrome of qi and blood deficiency (79 cases, 10.44%), and syndrome of yang deficiency of the spleen and kidney (26 cases, 3.43%).
Conclusion
The TCM syndromes of children with WD were primarily syndromes of dampness-heat accumulation, yin deficiency of the liver and kidney, and liver hyperactivity with spleen deficiency. The liver was the main disease location, and the disease nature was characterized by deficiency in origin and excess in superficiality, excess and deficiency mixed. These findings suggest that treating children with WD should be based on the liver while also considering the spleen and kidney.


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