1.Origins, Applications, and Challenges of Factorial Design in Implementation Science
Jiangyun CHEN ; Chaoyue WANG ; Meng WANG ; Yeqing ZHAN ; Duqiao LI ; Yifei WANG ; Xueying CHEN ; Yuling CHEN ; Na REN
Medical Journal of Peking Union Medical College Hospital 2026;17(4):1148-1157
Factorial design is an important method for optimizing complex strategies in implementation science. This paper systematically elucidates the origin, types, and core concepts of the factorial design, and then use a brief smoking cessation intervention project as an example to illustrate its specific applications in identifying key factors and testing interactions. Factorial design has the following typical advantages: it can test synergistic and antagonistic effects between factors, provide effect estimates that are broadly valid across the experimental conditions, and offer high statistical efficiency. At the same time, it also has certain limitations, including that its complexity is positively correlated with the number of factors, the need for large sample sizes to detect interactions, the potential for insufficient acceptability of some strategy combinations due to ethical concerns or participant burden, and the complexity of the analytical methods required. In future research, its application should be further optimized by appropriately controlling the number of factors, clearly defining research objectives, and evaluating intervention acceptability, in order to promote the development of precision implementation science.
2.Impact of metabolic risk factor control on mortality risk in patients with metabolic dysfunction-associated steatotic liver disease
Jingdan ZHANG ; Bingbing WANG ; Zeran WANG ; Fan FENG ; Ren NA ; Hongyan GE
Journal of Clinical Hepatology 2026;42(7):1576-1585
ObjectiveTo investigate the association of comprehensive control of multiple metabolic risk factors with the risk of all-cause mortality in patients with metabolic dysfunction-associated steatotic liver disease (MASLD) and its quantitative effect. MethodsA retrospective cohort study was conducted based on the data from National Health and Nutrition Examination Survey (NHANES) in 2003—2018. A total of 29 458 participants were enrolled, including 12 528 patients with MASLD and 16 930 non-MASLD controls. The control status of nine risk factors was assessed, i.e., hypertension, diabetes, liver fibrosis (assessed by fibrosis-4 index [FIB-4]), aspartate aminotransferase (AST)/alanine aminotransferase (ALT) ratio, serum albumin, renal function (assessed by serum creatinine), systemic inflammation (assessed by neutrophil count), smoking, and physical activity. According to the status of comprehensive risk factor control, the patients with MASLD were further divided into low-control group with 1 107 patients, moderate-control group with 7 042 patients, and high-control group with 4 379 patients. A total of 397 participants were enrolled in the external validation cohort, among whom there were 266 participants with MASLD and 131 participants without MASLD. The Kruskal-Wallis H test was used for comparison of continuous data between multiple groups, and the chi-square test was used for comparison of categorical data between groups. The Cox proportional hazards model incorporating complex sampling weights for NHANES data were used to investigate the association between the degree of risk factor control and all-cause mortality, and the Kaplan-Meier curve, the log-rank test, restricted mean survival time (RMST), and population attributable fraction (PAF) were used for further assessment. The robustness of the findings was validated in an independent clinical cohort (n=397). ResultsThe cohort study based on the NHANES database showed that during the median follow-up time of 6.7 years, 1 171 deaths occurred among the 12 528 patients with MASLD. There was a significant reduction in mortality risk with the increase in the number of risk factors controlled (trend test: χ2=65.06, P<0.001). Compared with the low-control group, the mortality risk decreased successively in the moderate-control group (hazard ratio [HR]=0.59, 95% confidence interval [CI]: 0.51 — 0.69) and the high-control group (HR=0.36, 95%CI: 0.27 — 0.48), and the mortality risk was reduced by 22% for each additional risk factor controlled (HR=0.78, 95%CI: 0.74 — 0.82). The PAF analysis showed that AST/ALT ratio control (PAF=19.2%) and physical activity (PAF=18.9%) were the largest contributors. The survival analysis of the sub-cohort constructed based on nearest neighbor matching (with a maximum follow-up time of 13.3 years) showed that there was a significant difference in cumulative survival rate between the MASLD groups with different control levels and the non-MASLD group (P<0.001). The RMST analysis further quantified the survival benefit of each group, and the high-control group had the longest 10-year RMST (9.88 years), which was superior to that of the non-MASLD group (9.43 years), the moderate-control group (9.33 years), and the low-control group (7.96 years). The multivariable-adjusted model analysis of the complete cohort showed that compared with the non-MASLD population, the MASLD patients in the low-control group had a significant increase in mortality risk, the moderate-control group had a comparable mortality risk, and the high-control group had a significantly lower mortality risk. The subgroup analysis showed a significant protective effect of comprehensive control in both male and female individuals (P<0.05), and the interaction analysis suggested a potentially stronger protective effect in female individuals (Pfor interaction=0.031). The protective effect was statistically significant in patients aged ≥60 years (P<0.05). There was a significant difference in protective effect across the groups stratified based on waist circumference (P<0.05), but there was no significant interaction between groups (Pfor interaction=0.821). In the external validation cohort, among the 397 participants, there were 72 cases of all-cause mortality (18.1%). The survival analysis showed a significant gradient increase in the survival rate of MASLD patients with the increase in the level of control (P=0.022). The RMST analysis showed that the moderate- and high-control groups had a better RMST than the non-MASLD group at 5 years (4.47 years vs 4.56 years vs 4.40 years), with a more significant survival advantage at 10 years (8.67 years vs 8.95 years vs 8.44 years). The Cox regression analysis showed that, with the low-control MASLD group as the reference, there was a significant reduction in mortality risk in the moderate-control group (HR=0.41, 95%CI: 0.21 — 0.81) and the high-control group (HR=0.32, 95%CI: 0.14 — 0.71); with the non-MASLD population as the reference, there was a significant increase in mortality risk in the low-control group (HR=2.02, 95%CI: 1.03 — 3.95), with a comparable mortality risk in the moderate-control group (HR=0.83, 95%CI: 0.48 — 1.44) and the high-control group (HR=0.66, 95%CI: 0.30 — 1.38), and the point estimates of the effects were highly consistent with the main study. ConclusionAmong MASLD patients, better control of metabolic risk factors is associated with a lower mortality risk. Achieving optimal control can eliminate the excess mortality risk associated with MASLD, thereby helping patients achieve a better survival prognosis than the general population.
3.Structure, content and data standardization of rehabilitation medical records
Yaru YANG ; Zhuoying QIU ; Di CHEN ; Zhongyan WANG ; Meng ZHANG ; Shiyong WU ; Yaoguang ZHANG ; Xiaoxie LIU ; Yanyan YANG ; Bin ZENG ; Mouwang ZHOU ; Yuxiao XIE ; Guangxu XU ; Jiejiao ZHENG ; Mingsheng ZHANG ; Xiangming YE ; Jian YANG ; Na AN ; Yuanjun DONG ; Xiaojia XIN ; Xiangxia REN ; Ye LIU ; Yifan TIAN
Chinese Journal of Rehabilitation Theory and Practice 2025;31(1):21-32
ObjectiveTo elucidate the critical role of rehabilitation medical records (including electronic records) in rehabilitation medicine's clinical practice and management, comprehensively analyzed the structure, core content and data standards of rehabilitation medical records, to develop a standardized medical record data architecture and core dataset suitable for rehabilitation medicine and to explore the application of rehabilitation data in performance evaluation and payment. MethodsBased on the regulatory documents Basic Specifications for Medical Record Writing and Basic Specifications for Electronic Medical Records (Trial) issued by National Health Commission of China, and referencing the World Health Organization (WHO) Family of International Classifications (WHO-FICs) classifications, International Classification of Diseases (ICD-10/ICD-11), International Classification of Functioning, Disability and Health (ICF), and International Classification of Health Interventions (ICHI Beta-3), this study constructed the data architecture, core content and data standards for rehabilitation medical records. Furthermore, it explored the application of rehabilitation record summary sheets (home page) data in rehabilitation medical statistics and payment methods, including Diagnosis-related Groups (DRG), Diagnosis-Intervention Packet (DIP) and Case Mix Index. ResultsThis study proposed a systematic standard framework for rehabilitation medical records, covering key components such as patient demographics, rehabilitation diagnosis, functional assessment, rehabilitation treatment prescriptions, progress evaluations and discharge summaries. The research analyzed the systematic application methods and data standards of ICD-10/ICD-11, ICF and ICHI Beta-3 in the fields of medical record terminology, coding and assessment. Constructing a standardized data structure and data standards for rehabilitation medical records can significantly improve the quality of data reporting based on the medical record summary sheet, thereby enhancing the quality control of rehabilitation services, effectively supporting the optimization of rehabilitation medical insurance payment mechanisms, and contributing to the establishment of rehabilitation medical performance evaluation and payment based on DRG and DIP. ConclusionStructured rehabilitation records and data standardization are crucial tools for quality control in rehabilitation. Systematically applying the three reference classifications of the WHO-FICs, and aligning with national medical record and electronic health record specifications, facilitate the development of a standardized rehabilitation record architecture and core dataset. Standardizing rehabilitation care pathways based on the ICF methodology, and developing ICF- and ICD-11-based rehabilitation assessment tools, auxiliary diagnostic and therapeutic systems, and supporting terminology and coding systems, can effectively enhance the quality of rehabilitation records and enable interoperability and sharing of rehabilitation data with other medical data, ultimately improving the quality and safety of rehabilitation services.
4.Interpretation of "Cancer statistics, 2025": A comparative study on cancer epidemiological characteristics and long-term trends between China and the United States
Ruifeng XU ; Hongrui WANG ; Yun CHE ; Na REN ; Guochao ZHANG ; Liang ZHAO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(04):442-452
In 2025, the American Cancer Society published "Cancer statistics, 2025", which projected cancer data for the upcoming year based on incidence data collected by central cancer registries (through 2021) and mortality data obtained from the National Center for Health Statistics (through 2022). Similarly, the National Cancer Center of China released "Cancer incidence and mortality in China, 2022" in December 2024, analyzing data from 22 cancer registries across the country. This study provides a comparative analysis of cancer incidence and mortality trends in China and the United States during the same period, with a focus on sex- and age-specific distributions and long-term changes in cancer patterns. Long-term trends indicate that lung and liver cancer mortality rates in China have declined, primarily due to tobacco control measures and hepatitis B vaccination programs. However, the burden of gastric and esophageal cancers remains substantial. In the United States, mortality rates for colorectal and lung cancers have continued to decline, largely attributed to widespread screening programs and advances in immunotherapy. As economic growth and social development, China’s cancer profile is gradually shifting towards patterns observed in countries with high human development index. However, the prevention and control of upper gastrointestinal cancers remains a critical public health challenge that requires further attention.
5.Application of health belief model in blood pressure management in patients with moyamoya disease after cerebral vascular reconstruction surgery
Na LI ; Hongyan CHEN ; Xi REN ; Xinxin DONG ; Qinglin LIU ; Donghong ZHAO
Journal of Clinical Medicine in Practice 2025;29(12):120-124
Objective To explore the application effect of blood pressure management based on the health belief model in patients with moyamoya disease after cerebral vascular reconstruction sur-gery.Methods From February to July 2024,210 patients with moyamoya disease who underwent cerebral vascular reconstruction surgery in our hospital were selected as study subjects.They were randomly divided into control group and intervention group,with 105 cases in each group.The control group received routine nursing care,while the intervention group applied blood pressure management based on the health belief model on the basis of routine nursing care.The postoperative cerebral hy-perperfusion syndrome and blood pressure control status of the two groups were compared,and the Health Belief Scale and the Mishel Uncertainty in Illness Scale were used to evaluate the effects before and after intervention.Results A total of 203 patients completed the study,including 100 cases in the control group and 103 cases in the intervention group.There were statistically significant differ-ences in the incidence of cerebral hyperperfusion syndrome and the proportion of patients with blood pressure higher than baseline data between the two groups(P<0.05).After the intervention,there were statistically significant differences in the postoperative cerebral hyperperfusion syndrome status and blood pressure control status between the two groups(P<0.05).After intervention,there were statistically significant differences in the scores of susceptibility and health motivation dimensions as well as the total score in the Health Belief Scale between the intervention group and the control group(P<0.05).After the intervention,there were statistically significant differences in the scores of ambiguity and unpredictability dimensions as well as the total score in the Mishel Uncertainty in Ill-ness Scale between the intervention group and the control group(P<0.05).Conclusion Blood pressure management based on the health belief model can effectively control blood pressure,reduce the incidence of cerebral hyperperfusion,improve health beliefs,and reduce the sense of uncertainty about the disease.
6.A retrospective cohort study on the incidence and influencing factors of malignancies among HIV-infected patients in Taizhou, Zhejiang Province
Tingting WANG ; Shanling WANG ; Yating WANG ; Liangyou WANG ; Xinchen WEI ; Xiaoxiao CHEN ; Tailin CHEN ; Jiyuan REN ; Xing LIU ; Haijiang LIN ; Na HE
Chinese Journal of Epidemiology 2025;46(8):1372-1378
Objective:To analyze the incidence and risk factors of malignant tumors among HIV-infected patients in Taizhou, Zhejiang Province.Methods:The data were collected from the China Information System for Disease Control and Prevention and the Taizhou Chronic Disease Information Management System. A retrospective cohort study design was used. The subjects were HIV-infected patients who had their household registration in Taizhou from 2005 to 2023 and participated in the follow-up. The observation period was until December 31, 2024. The standardized incidence ratios (SIR) of malignant tumors among HIV-infected patients were analyzed. Cox proportional hazards regression model was used to analyze the influencing factors of malignant tumor incidence.Results:A total of 3 593 HIV-infected patients were included, of whom 292 had malignant tumors. The proportions of AIDS-defining malignancies and non-AIDS-defining malignancies were 12.33% (36/292) and 87.67% (256/292), respectively. The proportion of malignant tumors before and after AIDS confirmation was 43.49% (127/292) and 56.51% (165/292), respectively. 3 466 HIV-infected patients were included in the follow-up cohort, with a total follow-up of 24 968.59 person-years. The incidence rate of malignant tumors in patients with HIV infection was 658.46 per 100 000 (SIR=1.89, 95% CI: 1.61-2.20). The SIR of malignant tumors showed an upward trend with the increase of time. The results of Cox proportional hazards regression model analysis showed that HIV-infected patients in the age groups of 45-59 and ≥60 years (a HR=2.58, 95% CI: 1.26-5.28; a HR=5.00, 95% CI: 2.38-10.51) were more likely to develop malignant tumors. HIV-infected patients with an educational level of senior high school or above (a HR=0.52, 95% CI: 0.29-0.95) and those in the first CD4 +T lymphocyte/CD8 +T lymphocyte count ratio ≥0.5 (a HR=0.52, 95% CI: 0.28-0.97) were less likely to develop malignant tumors. Conclusions:From 2005 to 2023, the incidence of malignant tumors among HIV-infected people in Taizhou was higher than that of the general population, and most of them were non-AIDS-defining malignancies. It is necessary to strengthen the early screening and diagnosis of malignant tumors among HIV-infected patients.
7.Current research and future perspectives on oropouche virus
Peijun HE ; Ziyun CHEN ; Tianfeng AN ; Dongsheng CHEN ; Xin CHEN ; Yishan CAI ; Enjiong HUANG ; Lihua MA ; Xiaohua LIU ; Zhenyong REN ; Na JIA
Chinese Journal of Epidemiology 2025;46(8):1513-1518
The oropouche virus (OROV) poses a threat to pregnant women and fetuses, potentially causing fetal neurological defects and even stillbirth, which has caused global attention. OROV is an arthropod-borne virus belonging to the Orthobunyavirus genus in the Bunyavirales order, primarily transmitted by arthropods and causing oropouche fever. This article reviews the etiological characteristics, epidemiological distribution, clinical symptoms, detection methods, and prevention strategies of OROV. OROV is prevalent in Central and South America, with a sharp increase in cases reported in Brazil in 2024. The virus's symptoms resemble those of several other arthropod-borne viral diseases, which can lead to misdiagnosis. Currently, there are no specific drugs or vaccines available, and treatment is mainly supportive. Culicoides paraensis and Culex quinquefasciatus are among the significant vectors of OROV. Furthermore, the article analyzes the distribution of Culex quinquefasciatus in China, highlights the risk of imported cases, proposes targeted prevention and control strategies, and underscores the significance of international cooperation in disease prevention and control.
8.Study on activation mechanism of SGCs in representation along the distribution of stomach meridian in IBS-D mice.
Na LI ; Junhui REN ; Lu GUAN ; Yashuang XU ; Liyan ZHONG ; Xiaomei SHAO ; Jianqiao FANG ; Junying DU ; Junfan FANG
Chinese Acupuncture & Moxibustion 2025;45(5):593-600
OBJECTIVE:
To explore the peripheral neural mechanism underlying representation along the distribution of stomach meridian induced by intestinal inflammatory reaction using diarrhea predominant-irritable bowel syndrome (IBS-D) mice.
METHODS:
Among 62 healthy male C57BL/6 mice of clean grade, 12 mice were randomly selected and divided into a control group and a model group, 6 mice in each group, additionally, 12 mice were randomly selected and divided into a Tianshu group, a Liangqiu group and a Zusanli group, 4 mice in each group. In the model group, citrobacter was administered orally to establish IBS-D model. In the control group and the model group, the visceral pain threshold was observed using fecal colorectal distension (fCRD) induced electromyography of external oblique muscle, the positive cell number of neutrophil in the colonic muscularis was detected by myeloperoxidase (MPO) staining, the number, location and distribution rule of Evans blue (EB) extravasation points were observed by injection of EB staining solution into the tail vein. In the Tianshu group, the Liangqiu group and the Zusanli group, fluorescent dye Dil was injected at bilateral "Tianshu" (ST25), "Liangqiu" (ST34) and "Zusanli" (ST36) respectively, to observe the dye-positive cell number in different dorsal root ganglion (DRG) segments. In the control group and the model group, the activation of satellite glial cells (SGCs) in different DRG segments was observed by immunofluorescence.
RESULTS:
Compared with the control group, in the model group, the area under curve of electromyography of external oblique muscle was increased at fCRD of 25, 50 and 75 μL distilled water (P<0.001, P<0.01); the MPO-positive cell number of neutrophil in the colonic muscularis was increased (P<0.01). Few EB extravasation points could be found in the control group, while there were much more EB extravasation points observed in the model group, which was specially distribution in the area of stomach meridian, from "Huaroumen" (ST24) to "Zusanli" (ST36), as well as the surface area dominated by L2-L5 segment of the spinal cord. The Dil-positive cells were mainly exhibited in the DRG of T11, L5 and L4 segments in the Tianshu group, the Liangqiu group and the Zusanli group, respectively. Compared with the control group, the ratio of glial fibrillary acidic protein (GFAP)/glutamine synthetase (GS) co-expression was increased in the DRG of T11, L4 and L5 segments in the model group (P<0.05, P<0.01).
CONCLUSION
The activation of SGCs within DRG of T11, L4 and L5 segments may relate closely to the occurrence of the representation along the stomach meridian distribution in IBS-D mice.
Animals
;
Male
;
Mice
;
Irritable Bowel Syndrome/therapy*
;
Mice, Inbred C57BL
;
Meridians
;
Stomach/physiopathology*
;
Humans
;
Acupuncture Points
;
Disease Models, Animal
9.A controlled study on the efficacy of combined indoor light therapy for depression and its effects on physiological indicators
Li YANG ; Ruojia REN ; Wenting LU ; Tianyu ZHAO ; Shijie GUO ; Bufan LIU ; Fanfan HUANG ; Huan CHEN ; Na JIN ; Yuehang XU ; Quan LIN ; Xueyi WANG
Chinese Journal of Psychiatry 2025;58(3):211-219
Objective:To investigate the efficacy of lightroom therapy on depressive mood and sleep problems in patients with depression, and the potential effects on physiological indices related to circadian rhythms.Methods:From October 2021 to July 2023, 54 patients with acute-phase depression hospitalized in the Mental Health Center of the First Hospital of Hebei Medical University were recruited. The participants were randomly assigned to either medication combined with the bright light therapy group (bright light group, n=36) or medication combined with the dim light therapy group (dim light group, n=18). Both groups received light therapy for 2 weeks, at 10 000 lx in the bright light group and 300 lx in the dim light group. Both groups received 30 minutes of light therapy from 7:30-8:00 a.m daily over two weeks, followed up for 1 week post-treatment. The Hamilton Depression Rating Scale (HAMD 17) was used to assess patients′ depressive symptoms, and the Pittsburgh Sleep Quality Index (PSQI) was used to assess patients′ sleep quality at baseline, at the end of every week. The 32-Item Hypomania Checklist (HCL-32) was used at the end of week 2 to assess the risk of manic switching after treatment. Daily measurements of body temperature, heart rate, and blood pressure were taken before and after light therapy, along with recording adverse events related to the therapy. Paired t- tests were used to compare changes in physiological indicators before and after treatment, and repeated measures ANOVA was applied to compare clinical symptom changes between the two groups. Results:Thirty-one and fifteen patients completed this study in the bright light and dim light groups, respectively, with no statistically significant difference in dropout rates( P>0.05). There were significant interaction effects between the time and group for HAMD 17 and PSQI score( F=5.51,4.11, both P<0.05). Both groups showed significant reductions in HAMD 17 and PSQI scores at baseline, week 1, week 2, and week 3 ( P<0.001). In the bright light group, body temperature increased significantly post-treatment on days 1-4, day 7, and day 12 (all P<0.05). Heart rate elevated on day 5 ( P<0.05).Systolic blood pressure decreased on days 4, 5, 11, and 12 compared to the pre-treatment baseline(all P<0.05). In the dim light group, systolic blood pressure increased on day 11 ( P<0.05). Diastolic blood pressure in the bright light group decreased on days 1, 5, and 6( P<0.05). No serious adverse events, vision loss, ocular structural changes occurred in either group. No hypomania or mania episodes were observed. The incidence of adverse events did not differ significantly ( P>0.05). Conclusion:Medication combined with indoor bright light is more effective than the combination of dim light for depressive symptoms and sleep problems in patients with depression. Patients receiving bright light also may exhibit a higher body temperature, accelerated heart rate, and reduced blood pressure.
10.Effect of high-density lipoprotein cholesterol to total cholesterol ratio on no-reflow in elderly patients after interventional treatment
Na WANG ; Hao WANG ; Fan ZHANG ; Guangyuan GUO ; Liangfei FENG ; Zheng REN ; Guanglei LI
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2025;27(7):863-866
Objective To explore the effect of the ratio of high-density lipoprotein cholesterol(HDL-C)/total cholesterol(TC)on no-reflow after percutaneous coronary intervention(PCI)in elderly patients with acute coronary syndrome(ACS)complicated with diabetes mellitus(DM).Methods A retrospective analysis was conducted on 206 elderly ACS patients complicated with DM undergoing PCI in our hospital from January 2018 to August 2024.The HDL-C and TC levels were detected by cholesterol oxidase test,and the HDL-C/TC ratio was calculated.Coronary angi-ography(CAG)was applied to evaluate no-reflow phenomenon after PCI,and according to the re-sults,the patients were divided into a non-reflow group(41 cases)and a normal reflow group(165 cases).ROC curve was plotted to evaluate the predictive performance of HDL-C/TC ratio for no-reflow after PCI in patients with ACS complicated DM.Results The no-reflow group had signifi-cantly higher TC and glycated hemoglobin A1c(HbA1c)levels and more balloon dilatations,but lower HDL-C level and HDL-C/TC ratio than the normal flow group(P<0.01).Multivariate lo-gistic regression analysis showed that HbA1c(OR=3.196,95%CI:1.619-6.310,P=0.001),number of balloon dilatations(OR=3.504,95%CI:1.807-6.797,P=0.000),and HDL-C/TC ra-tio(OR=3.927,95%CI:2.0 73-7.441,P=0.000)were influencing factors of no-reflow after PCI in patients with ACS and DM.The AUC value of HDLC,TC,and HDL-C/TC ratio in predicting no-reflow after PCI was 0.842,0.726,and 0.922,respectively.Conclusion HDL-C/TC ratio is an influencing factor for no-reflow in patients with ACS and DM after PCI.The ratio at a cut-off val-ue of ≤0.21 has a certain predictive value for no-reflow after PCI in these elderly patients.

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