1.Investigation on the microclimate of primary and secondary school classrooms in five provinces and municipalities of China in winter
Chinese Journal of School Health 2026;47(2):158-162
Objective:
To understand the microclimate in primary and secondary school classrooms for the study period during the winter heating season, so as to provide a reference for the revision and improvement of relevant health standards.
Methods:
In December 2024, stratified random sampling was used to select 30 primary and secondary schools and 180 classrooms from the northern regions with centralized heating (Liaoning Province, Tianjin City) and the southern regions without centralized heating (Shanghai City, Anhui Province, and Jiangxi Province). Indoor temperature, relative humidity, wind speed, CO 2 and other indicators were measured on site. Variance analysis, t-test, Mann-Whitney U test and Kruskal-Wallis H test were used to analyze the differences in the microclimate of classrooms among regions and urban and rural differences.
Results:
The average temperature in the middle of the classrooms tested on site was (16.47±4.72)℃, and the variance analysis showed that the difference between the regions was statistically significant ( F=27.80, P <0.01). Among them, Tianjin had the highest average temperature of (20.43± 2.12 )℃, followed by Liaoning (19.03±2.23)℃, Shanghai (15.33±5.32)℃, Anhui (12.79±1.74)℃, and Jiangxi (11.69± 1.68 )℃. Horizontal temperature difference was 0.90 (0.50, 1.60)℃, the vertical temperature difference was 0.20 (0.10,0.60)℃, the average relative humidity was (44.39±16.16)%, the wind speed was 0.03(0.01,0.11)m/s, and the differences among different provinces and cities were statistically significant ( H/F =40.62, 82.69, 95.06, 55.28, all P <0.01). The average CO 2 volume concentration in urban areas of Tianjin, Liaoning, and Shanghai was 0.21(0.16,0.30)%, and there was no statistically significant difference ( H=4.65, P =0.10). There were grade differences in relative humidity ( F =3.71, 6.21) and CO 2 ( H =14.72, 12.92) in the north and the south (all P <0.05). In addition, the temperature, relative humidity, wind speed and CO 2 in the middle of the classroom were 42.8%, 67.8%, 100.0% and 22.2% respectively.
Conclusions
The temperature in the middle of the classroom in the non centralized heating area is lower than the standard, the relative humidity of classroom in the centralized heating area is lower than the standard,and the CO 2 in the classroom in winter is lower than the standard. It is recommended to install heating facilities in schools with low temperatures to increase the temperature and increase the frequency of ventilation in classrooms or adopt mechanical ventilation strategies to reduce CO 2 volume concentration.
2.Analysis of thermal environment and students thermal comfort in primary and secondary school classrooms in winter
Chinese Journal of School Health 2026;47(2):168-172
Objective:
To evaluate the current situation of thermal environment in primary and secondary school classrooms during winter, and to analyze students thermal comfort needs, so as to provide a basis for improving classroom thermal environment.
Methods:
From December 16 to 26, 2024, a stratified cluster random sampling method was used to select 90 classrooms from 15 primary and secondary schools in centralized/air conditioned heating areas(Liaoning Province, Tianjin City, Shanghai City) and naturally ventilated areas(Anhui Province and Jiangxi Province)for on site environmental measurement. A questionnaire survey was conducted among 743 students. The differences between groups using the χ 2 test were compared. Based on actual measurement data, a predicted mean vote prepared percentage of dissatisfied (PMV-PPD) model for centralized/air conditioned classrooms and an adaptive model for naturally ventilated classrooms were established, and the thermal neutral temperature and comfort interval were calculated.
Results:
The average outdoor temperature during on site measurement was 4.00(0.20,7.00)℃. In classrooms with centralized or air conditioned heating systems, the measured average temperature was (19.33±2.59)℃, with a thermal comfort range of 20.35-25.35 ℃ and a thermal neutral temperature of 22.85 ℃. And 13.92% of students reported feeling cold, while 80.80% felt comfortable. In classrooms with natural ventilation, the measured average temperature was (12.26±1.83)℃, with a thermal neutral temperature of 19.67 ℃ and a thermal comfort range of 16.17-23.17 ℃. About 48.33% of students reported feeling cold, and 49.81 % felt comfortable.The results of univariate analysis showed that there were statistically significant differences in shoe thickness, temperature sensation, relative humidity sensation and wind speed sensation between centralized/air conditioned heating areas ( χ 2= 7.01 , 31.47, 13.57, 13.80,all P <0.05). There were also statistically significant differences in school stage for primary and secondary school students, body mass index, classroom location for seat, temperature sensation, relative humidity sensation and wind speed sensation between naturally ventilated areas ( χ 2=42.13, 11.13, 11.04, 60.39, 29.27, 38.46,all P <0.05).
Conclusions
There are differences in thermal environment and students subjective thermal comfort in primary and secondary schools under different ventilation modes in winter. The temperature standards for heated classrooms should be revised, and differentiated environmental regulation strategies should be adopted based on different ventilation methods to improve students health and comfort levels.
3.Clinical Experience of Professor TU Jinwen in Staged Differentiating and Treating Cancer-Related Insomnia Based on the Qi and Fire
Cheng LUO ; Yuanhang YE ; Jia KE ; Yi YANG ; Cong HE ;
Journal of Traditional Chinese Medicine 2026;67(10):1044-1048
This paper summarizes professor TU Jinwen's clinical experience in treating cancer-related insomnia (CRI) based on different qi and fire. It is believed that the pathogenesis of CRI can be divided into three stages. At the initial stage, qi movement is constrained, while the strong fire begins to stir, and the sovereign fire is unsettled, when qi is abundant, but the fire is not excessive. For this, Sanhua Jieyu Anshen Decoction (三花解郁安神汤) is suggested, which can move qi and vent constraint, clear and diffuse strong fire, calm the heart and spirit. At the progressive stage, strong fire becomes intense and burning, and qi transformation weakens, with toxin fire harassing the spirit. This is the stage where both qi and fire are excessive, for which Huanglian Jiedu Anshen Decoction (黄连解毒安神汤) can be used to clear and dissipate strong fire, drain fire and resolve toxin, clear heart and calm spirit. At the terminal stage, strong fire subsides, and consumption of qi damages healthy qi, with failure of nourishment of heart spirit, when both qi and fire deplete. Correspondingly, Erren Yangxin Anshen Decoction (二仁养心安神汤) is used to boost qi and nourish yin, restore interaction between the heart and the kidney, nourish the heart and calm spirit.
4.Effect of functional pelvic floor muscle training on stress urinary incontinence in women
Ya'nan LI ; Miao YE ; Juan WU ; Cong CHEN ; Lingfang WAN ; Lili YU ; Linlin GAO ; Yi QIN ; Huafang JING
Chinese Journal of Rehabilitation Theory and Practice 2026;32(6):690-698
ObjectiveTo observe the effect of functional pelvic floor muscle training on pelvic floor muscle function, incontinence symptoms and quality of life in female patients with stress urinary incontinence (SUI). MethodsFrom February, 2024 to July, 2025, 40 female patients with SUI were recruited from Beijing Bo'ai Hospital and advertisements. They were randomly divided into control group (n = 20) and experimental group (n = 20). The control group received conventional pelvic floor muscle contraction and relaxation training, and the experimental group received functional pelvic floor muscle contraction and relaxation training, for eight weeks. The data of pelvic floor muscle strength, pelvic floor muscle surface electromyography (sEMG), 1-hour urine pad test and Incontinence Quality of Life questionnaire (I-QOL) were collected before and after training. The compliance rate was counted after training. ResultsOne case dropped down in the control group and three cases dropped down in the experimental group. After treatment, the pelvic floor muscle strength increased in both groups (|Z| > 3.317, P < 0.01), the pre-resting average value, sustained contraction average value and durable contraction average value of sEMG improved in the control group (|t| > 2.731, P < 0.05), the mass of 1-hour urine pad significantly reduced (t > 9.215, P < 0.001) and the I-QOL score significantly increased (|t| > 13.229, P < 0.001) in both groups; compared with the control group, the pelvic floor muscle strength significantly increased (Z = -2.281, P = 0.023), the mass of 1-hour urine pad significantly reduced (t = 4.215, P < 0.001), the I-QOL score significantly increased (t = -4.501, P < 0.001), and the compliance rate significantly increased (Z = -2.798, P < 0.01) in the experimental group . ConclusionFunctional pelvic floor muscle training can significantly improve pelvic floor muscle strength, incontinence symptoms and quality of life in female patients with SUI.
5.Risk factors for surgical site infection after colorectal cancer surgery: a two-center retrospective study
Zaihu MU ; Shuai ZHAO ; Wei CHEN ; Xiaoli YE ; Cong HAN ; Xiaojun JIN ; Aibin LIU ; Yanhong WENG ; Daorong WANG
Chinese Journal of Gastrointestinal Surgery 2025;28(10):1156-1160
Objective:To analyze the incidence of surgical site infection (SSI) in patients undergoing colorectal cancer (CRC) surgery and to identify risk factors associated with SSI in an attempt to provide a reference for clinical prevention strategies.Methods:A retrospective cohort study was conducted. Clinical data were retrospectively collected from a total of 2,248 patients who underwent surgery for pathologically confirmed CRC between 2017 and 2022 at two centers: Huangshan Shoukang Hospital ( n=649) and Northern Jiangsu People's Hospital ( n=1 599). Inclusion criteria consisted of the following: (1) age >18 years; (2) pathologically confirmed CRC treated with curative resection, including extended resections (e.g. pelvic exenteration); (3) no surgical incisions other than abdominal or perineal; and (4) no use of prosthetic implants. The incidence of SSI was analyzed, and multivariate logistic regression was used to identify independent its risk factors. Results:A total of 121 patients (5.4%) developed SSI. Among them, 68 cases (56.2%) were organ/space infections, 35 cases (28.9%) were deep incisional infections, and 18 cases (14.9%) were superficial incisional infections. The median postoperative hospital stay was significantly longer in patients with SSI compared to those without (21.0 days vs. 13.0 days, U=65,754, P<0.001). The median hospitalization cost was also significantly higher in the SSI group (56,550 yuan vs. 43,645 yuan, U=72,008, P<0.001). Multivariate logistic regression analysis identified body mass index (BMI) ≤ 20 kg/m 2 (OR=4.25, 95%CI: 3.38-5.34, P<0.001), diabetes mellitus (OR=3.44, 95%CI: 1.89-6.24, P<0.001), open surgery (OR=4.23, 95%CI: 2.37-7.56, P<0.001), and colostomy or ileostomy (OR=1.67, 95% CI: 1.04-2.69, P=0.034) as independent risk factors for SSI. Conclusion:To prevent SSI following CRC surgery, attention should be given to optimizing body weight and glycemic control, promoting minimally invasive surgical approaches when feasible, and cautiously considering the necessity of colostomy or ileostomy.
6.Autophagy in different subtypes of breast cancer cells mediated by p-AMPK and its molecular mechanisms
Xin-jiao YANG ; Ru-yao HU ; Zhe XIONG ; Di ZOU ; Jie CAI ; Cong-long XIA ; Zhong-bin BAI ; Hong-ye ZHAO
Chinese Pharmacological Bulletin 2025;41(5):898-907
Aim To investigate the effect of p-AMPK activity on autophagy in different subtypes of MDA-MB-231(triple-negative breast cancer cells)and MCF-7(estrogen receptor-positive cells)and its regulatory mechanism.Methods MDA-MB-231 cells were trea-ted with EBSS,Baf-A1,and EBSS+Baf-A1 for four hours,and MCF-7 cells for eight hours.The effects of autophagy on cell proliferation and apoptosis were ob-served,mitochondrial morphology was examined,and the expression of autophagy markers LC3B,P62,LAMP1,TOM20,AMPK,p-AMPK,ULK1,and Bec-lin1/VPS34 proteins was detected.The autophagy pathway was validated by inhibiting AMPK activity.Results Breast cancer cells underwent autophagy af-ter starvation induction(EBSS),with inconsistent au-tophagy processes observed in different subtypes of breast cancer cells.Autophagy inhibited cell prolifera-tion.In MDA-MB-231 cells,autophagy led to an in-crease in p-AMPK levels and a decrease in ULK1 lev-els,initiating autophagy through p-AMPK activation of ULK1.In MCF-7 cells,both p-AMPK and ULK1 levels decreased after autophagy,suggesting that autophagy might not be mediated by p-AMPK activation.Conclu-sions MDA-MB-231 cells primarily initiate autophagy by directly activating ULK1 by p-AMPK,independent of the MTOR pathway.In MCF-7 cells autophagy might be triggered by inhibiting MTOR through AMPK activity or directly activating MTOR through other up-stream factors.Regulating p-AMPK activity based on the autophagy pathways in different cell subtypes could enable more precise targeting and treatment of different types of breast cancer.
7.Mid-and long-term effect of Kegel training combined with Pilates training on urinary control recovery in pa-tients with post-prostatectomy incontinence with different body mass index
Di AN ; Jianxia WANG ; Fan ZHANG ; Huafang JING ; Yi GAO ; Huiling CONG ; Guodong SU ; Miao YE ; Chunying HU ; Juan WU ; Limin LIAO
Chinese Journal of Rehabilitation Theory and Practice 2025;31(8):972-978
Objective To observe the mid-and long-term effects of Kegel training combined with Pilates training on urinary conti-nence recovery in different body mass index(BMI)male patients with urinary incontinence after prostatectomy.Methods From May,2023 to June,2024,48 patients in Beijing Bo'ai Hospital were recruited and divided into group A(<25 kg/m2,n=15),group B(25 to 30 kg/m2,n=18)and group C(>30 kg/m2,n=15)according to their BMI.All the groups performed Kegel training combined with Pilates training for two months,and followed up at six months from baseline.They were evaluated with one hour pad test,the number of daily urinary incontinence,In-ternational Consultation on Incontinence Questionnaire-Short Form(ICIQ-SF)and modified Oxford Rating Scale before treatment,and four weeks,eight weeks and six months after treatment.Results The intra-group effect,the inter-group effect and interaction effect were significant in the results of one hour pad test and the daily number of urinary incontinence(F>2.955,P<0.05).Post Hoc test showed that they were worse in group C than in groups A and B(P<0.05),and the number of daily urinary incontinence was more in group B than in group A(P<0.05).There was significant difference in the scores of ICIQ-SF and modified Ox-ford Rating Scale among groups in different time points after treatment(Z>10.476,P<0.05)except the score of ICIQ-SF four weeks after treatment(P>0.05),and they were the worst in group C.BMI(group A=1,group B=2,group C=3)was correlated with the results of one hour pad test(r=0.79,P<0.001),the number of daily uri-nary incontinence(r=0.68,P<0.001),and the scores of ICIQ-SF(r=0.68,P<0.001)and modified Oxford Rating Scale(r=-0.47,P=0.001)six months after treatment.Conclusion Kegel training combined with Pilates training could improve the urinary control in patients with urinary in-continence after prostatectomy.The decrease of BMI can promote the recovery of urinary control,and improve the symptoms of later urinary incontinence in mid-and long-term.
8.Gray correlation analysis of factors affecting per capita current health expenditure in Guizhou province
Yijuan LV ; Hua SHI ; Li YE ; Ke ZHANG ; Xu SU ; Cong WANG ; Qinghua WANG ; Wanju TAO
Modern Hospital 2025;25(1):79-82
Objective This study aims to analyze the factors influencing per capita current health expenditure in Guizhou Province from 2016 to 2022 using the gray correlation analysis method.Methods Based on the"SHA2011"accounting results of current health expenditure in Guizhou Province,as well as data from the"Guizhou Statistical Yearbook"and"Guizhou Health Statistical Yearbook",the gray correlation analysis method was used to analyze the factors influencing per capita current health expenditure in Guizhou Province from 2016 to 2022.Results The factors with the highest correlation to per capita current health expenditure in Guizhou Province were health expenditure(0.829),followed by the number of health technical personnel per thousand people(0.715),the number of practicing(assistant)physicians per thousand people(0.705),and per capita GDP(0.704).The factor with the lowest correlation was the proportion of the tertiary industry to GDP(0.543).Conclusion Health expenditure investment has the strongest correlation with per capita current health expenditure in Guizhou Province.Health re-source investment and health service capacity are the main influencing factors of per capita current health expenditure in Guizhou Province.At the same time,the impact of economic and social factors on current health expenditure should be fully recognized.
9.The nomogram prediction model for the risk of dropout in sublingual immunotherapy of patients with allergic rhinitis
Cong PENG ; Zhuguang YI ; Huiping YE ; Dan LIU ; Min WU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2025;60(3):330-337
Objective:To develop and externally validate a nomogram prediction model for assessing the risk of treatment dropout in allergic rhinitis (AR) patients undergoing sublingual immunotherapy (SLIT).Methods:Between February 2016 and December 2019, data from 358 and 259 AR patients undergoing SLIT were collected from Guizhou Provincial People′s Hospital and Huangshi Central Hospital, respectively. The data included general patient information, dust mite sIgE levels, allergen types, and 22 other clinical variables. Data from Guizhou Provincial People′s Hospital were used as the training set, while data from Huangshi Central Hospital were served as the external validation set. A multivariable Cox regression model was used to identify independent factors associated with SLIT dropout and to develop a nomogram prediction model.Results:Multivariate Cox regression analysis identified several significant factors influencing SLIT dropout, including dust mite sIgE levels (Grade Ⅱ-Ⅳ; HR=1.48, 95% CI: 1.16-1.88), presence of other allergic diseases ( HR=0.47, 95% CI: 0.37-0.61), Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) score ( HR=0.98, 95% CI: 0.97-1.00), WeChat management ( HR=0.77, 95% CI: 0.60-0.98), treatment efficacy ( HR=0.72, 95% CI: 0.56-0.92), age (5-17 years, HR=0.50, 95% CI: 0.36-0.71;≥60 years, HR=1.42, 95% CI: 1.08-1.87), household income (<5 000 CNY, HR=1.44, 95% CI: 1.09-1.90;>20 000 CNY, HR=0.66, 95% CI: 0.44-0.99), allergen types (single dust mite, HR=0.70, 95% CI: 0.49-0.93; and combined pollen or mold, HR=1.45, 95% CI: 1.02-2.04), and time to efficacy <3 months ( HR=0.73, 95% CI: 0.56-0.94), all P<0.05. At the third-year follow-up, the area under curve (AUC) for the nomogram model was 0.913 (95% CI: 0.881-0.943) in the training group and 0.886 (95% CI: 0.838-0.933) in the validation group. Calibration and decision curve analyses demonstrated the model′s consistency with actual dropout rates and clinical benefit in both groups. Additionally, a Brier score of 0.29 further confirmed the model′s predictive accuracy. Conclusion:We successfully develop a nomogram-based prediction model for SLIT dropout in AR patients, which could assist healthcare professionals in effectively identifying high-risk patients and facilitate the development of more personalized and timely treatment plans aimed at enhancing patient compliance.
10.Establishment and exploration of a quality monitoring indicator system for Investigator-Initiated ophthalmology clinical research in China
Jiangyi LIU ; Cong YE ; Ayong YU ; Jian ZHANG ; Yuanbo LIANG ; Jia QU
Chinese Journal of Medical Science Research Management 2025;38(4):298-305
Objective:To develop an evaluation index system for the quality management process of investigator-initiated trials(IITs) in ophthalmology, providing a scientific tool and reference for improving clinical research quality and standardized management.Methods:Key quality management elements of ophthalmology IITs were identified through a literature review and experts interviews. A three-round Delphi consultation was conducted with experts from 16 provinces and municipalities in China who specialize in ophthalmic clinical research management. The importance of each index was scored, and weighting calculations were performed. Based on ranking and feasibility, a validated quality index system for ophthalmology IITs was established.Results:A three-tier index system was developed, comprising three first-level indicators (structure, process, and outcome), 15 secondary indicators, and 44 tertiary indicators. The expert authority coefficient was 0.87, and the response rates for the three Delphi rounds were 100%, 92.58%, and 100%, respectively. Among the first-level indicators, the highest weight was assigned to ″Structure″ (0.443 2). The top three secondary indicators were ″Data analysis report″ (0.098 3), ″Study protocol execution and data archiving″ (0.096 0), and ″Research team″ (0.094 1). At the tertiary level, the highest-ranked indicators were ″Data cleaning, verification, and database locking″ (0.049 2), ″Archiving and preservation of research data″ (0.048 8), and ″Execution of statistical analysis as planned″ (0.048 4).Conclusions:The ophthalmology IIT process quality evaluation index system developed in this study is scientifically grounded and will provides a valuable reference for standardizing quality management and further empirical research in ophthalmology IITs.


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