The clinical practice guidelines of traditional Chinese medicine （TCM） have problems such as limited clinical application and unclear implementation effects， which may be related to the lack of clinical practice evidence. To provide reliable and precise evidence for clinical practice， this article proposes a model of combining TCM guidelines with real-world study， which includes 4 steps. Firstly， during the implementation process of the guidelines， a high-quality research database is established. Secondly， the recommendations in the guidelines are evaluated based on the established database in multiple dimensions， including applicability， effectiveness， safety， and cost-effectiveness， and thus their effectiveness in practical applications can be determined. Thirdly， based on the established database， core prescriptions are identified， and the targeted populations and medication plans are determined. That is， the best treatment regimen is established based on the analysis of abundant clinical data regarding the effects of different medication frequencies， dosages， and duration on efficacy. Fourthly， the guidelines are updated according to the real-world evidence. The research based on this model can provide real-world evidence for ancient and empirical prescriptions， improving their application in clinical practice. Moreover， this model can reduce research costs and improve research efficiency. When applying this model， researchers need to pay attention to the quality of real-world evidence， ensuring that it can truly reflect the situation in clinical practice. In addition， importance should be attached to the clinical application of guideline recommendations， ensuring that doctors can conduct standardized diagnosis and treatment according to the guidelines. Finally， full-process participation of multidisciplinary experts is encouraged to ensure the comprehensiveness and scientificity of the study. In conclusion， the application of this model will contribute to the development of TCM guidelines responsive to the needs of clinical practice and achieve the goal of promoting the homogenization of TCM clinical diagnosis and treatment.

The classification of traditional Chinese medicine （TCM） syndromes is one of the core technical elements in the industry standard of Specification of Diagnosis and Therapeutic Effect Evaluation of Diseases and Syndromes in TCM. In the past，when clinical standards for TCM were formulated，the determination of TCM syndrome classification relied heavily on textbooks and expert experience，lacking systematic research. This approach thus failed to reflect the advancement and scientificity of the standards，thereby affecting their implementation and application. This article reviewed the presentation forms and technical methods of TCM syndrome classification，including the two-tier syndrome classification model with primary and secondary symptoms，as well as the application of modern literature research，ancient literature research，Delphi method，in-depth expert interviews，consensus conferences，and real-world research. When syndrome classification standards are developed，it is necessary to build upon modern literature research，adopt a mixed approach combining qualitative research and quantitative analysis results，and reach expert consensus through consensus conferences. Through systematic research，the scientificity，applicability，and coordination of TCM syndrome classification standards can be enhanced，providing guidance for the standardization of TCM.

Objective:To describe the epidemiological distribution of hemorrhoids in a physical exami-nation population in China,which could provide evidence for precision prevention and early intervention of hemorrhoids.Methods:Chinese subjects over 18 years of age who underwent a physical examination in a nationwide chain of physical examination centers in 2018 were studied in a cross-sectional design,which collected information by a questionnaire and physical examination results from each subject.The epidemiological distribution of hemorrhoids was described using Logistic models.The gender-,age-,and region-detection rates of hemorrhoids were standardized to the Sixth National Population Census of the People's Republic of China(2010).Results:A total of 2 940 295 adult subjects were included in the study,of whom the average age was(41.7±14.0)years,and 52.6％were females.The standardized detection rate of hemorrhoids was higher for females(43.7％)than that for males(17.7％;P＜0.001)in this study.In the females,the age distribution of hemorrhoids was inverted U-shaped,with the highest standardized detection rate of hemorrhoids in the age group of 30-39 years(63.5％).In the males,the standardized detection rate of hemorrhoids increased along with age,with the highest percentage of 17.2％in the age group of 50-59 years,and the standardized detection rate of hemorrhoids in the age group of 60 and above decreased slightly(P＜0.001 for trend test).The participants with hypertension had a higher standardized detection rate of hemorrhoids than those with normal blood pressure in both males and females(P＜0.001).The standardized detection rate of hemorrhoids showed a positive corre-lation with body mass index(P＜0.001 for trend test in males).Conclusion:The detection rate of hemorrhoids varied to gender,age,obesity,and hypertension status,which could help to identify the risk factors and the high-risk sub-groups,and hence to strengthen health education and early detection accordingly,which could eventually reduce the incidence of hemorrhoids and improve the quality of life and health in the Chinese population.This study was conducted in a physical examination population,and the conclusions of this study should be extrapolated with caution.

Objective To understand the epidemic characteristics of heart failure in Guangzhou, and to provide a basis for the prevention and control of heart failure. Methods The information of patients hospitalized for heart failure in Guangzhou from January 1, 2017 to December 31, 2021 was collected, and t test, rank sum test, and χ² test were used to analyze the differences of central tendency and composition ratio. Results From 2017 to 2021, there were 6 823 hospitalized patients with heart failure in Guangzhou, with 8,716 hospitalizations and 849 deaths. The average age of hospitalization was 78.50 ±10.48 years old. Male patients were younger than female patients (P<0.001), and females died 3.86 years later than males on average (P<0.001). The number of hospitalizations for males (4 251 person times, accounting for 48.77%) was less than that for females (4 465 person times, accounting for 51.23%), and the number of hospitalizations for urban registered residence (7 346 person times, accounting for 84.28%) was much more than that for rural registered residence (1 370 person times, accounting for 15.72%). The number of hospitalizations in the fourth quarter was the largest. The combined rates of coronary heart disease, hypertension, type 2 diabetes, chronic obstructive pulmonary disease and hyperlipidemia were 58.65%, 69.52%, 34.92%, 10.69% and 10.23% respectively. There were differences in age, registered residence, residential area and complications among patients with acute and chronic heart failure (P<0.05). Conclusion The mortality of patients with heart failure in Guangzhou is high, and the distribution characteristics of acute and chronic heart failure is different. Corresponding preventive measures should be taken for different groups to reduce the disease burden and improve the quality of life.

Objective:To investigate the effect of volatile organic compounds (VOCs) exposure in the atmosphere on the risk of daily death from stroke in Guangzhou.Methods:Daily average concentrations of twelve atmospheric VOCs, meteorological factors, and daily deaths for stroke and its subtypes (including ischemic and hemorrhagic stroke) in Guangzhou from 2020 to 2021 were collected. The time-series Poisson generalized additive model was established to analyze the relationship between daily average concentrations of atmospheric VOCs and daily mortality from a stroke on different lag days. The season, gender, and age group further performed stratification analysis.Results:Toluene and n-pentane were associated with a higher mortality risk from stroke and its subtypes. For each interquartile range ( IQR) increment in toluene concentration at lag0- 1 days, the RRs for mortality from stroke and hemorrhagic stroke were 1.060 (95% CI: 1.036-1.085) and 1.071 (95% CI: 1.030-1.113), respectively. For each IQR increment in n-pentane concentration, the RR for mortality from ischemic stroke was 1.064 (95% CI: 1.030-1.099). The effect estimates of VOCs may be higher during the cold season and among women and people aged ≥75 years. For each IQR increment in toluene concentration, the RRs for mortality risk of stroke in the cold season and women were 1.099 (95% CI: 1.056-1.143) and 1.085 (95% CI: 1.050-1.120), respectively. For n-pentane, the RR for death risk of stroke in people aged ≥75 years old was 1.072 (95% CI: 1.036-1.109). Results of sensitivity analysis showed that the effect estimates fluctuated less when PM 2.5 and O 3 were separately introduced for the two-pollutant model, as well as changing the degrees of freedom for covariates. Conclusions:This study suggests that VOCs may be an independent risk factor for daily mortality from stroke. Moreover, Toluene presented the most significant health impact.

Objective:To retrieve and analyze the evidence related to perioperative blood glucose management in patients with coronary heart disease (CHD) complicated by diabetes undergoing percutaneous coronary intervention (PCI) , and provide clinical guidance for glucose management.Methods:Systematic searches were conducted on domestic and international guideline websites, evidence-based databases, primary research databases, and related association websites for evidence concerning perioperative blood glucose management for this patient group. The search included clinical decisions, guidelines, expert consensus, evidence summaries, and systematic reviews, covering the time span from database inception to February 2022. Two evidence-trained researchers independently conducted literature quality assessments and evidence extraction, with disputes resolved by a third party.Results:Eighteen articles were included: one clinical decision, nine guidelines, and eight expert consensuses. The findings were summarized into eight aspects: team formation and training, admission assessment and treatment, blood glucose control targets, preoperative glucose management, intraoperative glucose management, postoperative glucose management, perioperative abnormal glucose management, and discharge management, totaling 35 evidence points.Conclusions:This study consolidates evidence related to perioperative blood glucose management for patients with CHD complicated by diabetes undergoing PCI. However, during the evidence translation and application process, conditions of the application site, medical resources, and patient preferences should be fully considered. After assessing the feasibility and applicability of the evidence, a personalized blood glucose management plan should be developed for the patient, aiming to improve blood glucose levels and prognosis.

Objective:To evaluate and summarize the best evidence of exercise instructions for patients with atrial fibrillation.Methods:A comprehensive search about evidence on exercise rehabilitation in patients with atrial fibrillation was conducted in following databases: Joanna Briggs Institute (JBI) Library, The Agency for Healthcare Research and Quality (AHRQ), National Institute for Health and Clinic Excellence (NICE), Scottish Intercollegiate Guidelines Network (SIGN), Registered Nurses′ Association of Ontario (RNAO), Physiotherapy Evidence Database (PEDro), American College of Physicians (ACP), Cochrane Library, PubMed, Embase, CINAHL, Medlive, China National Knowledge Infrastructure (CNKI), WanFang Database, VIP Database, and China Biology Medicine (CBM). The retrieval period was from the inception of databases to January 2021. Two researchers with evidence-based nursing background assessed the quality of the literature independently and identified the level of evidence.Results:A total of 16 articles were included, including 4 guidelines, 4 systematic reviews, 4 expert consensuses, 4 randomized controlled trials. Combined with professional judgment, 35 pieces of best evidence in 7 aspects were summarized, including exercise benefits, the appropriate crowd, exercise evaluation, exercise mode, exercise intensity, exercise time, exercise supervision and safety.Conclusions:Regular exercise is safe and beneficial for patients with atrial fibrillation. Clinical staff should guide patients to exercise moderately by applying the best evidence with scientific exercise intervention, promoting patients′ physical and mental health.

BACKGROUND: For the reason that many studies have been inconclusive on the effect of humidity on respiratory disease, we examined the association between absolute humidity and respiratory disease mortality and quantified the mortality burden due to non-optimal absolute humidity in Guangzhou, China. METHODS: Daily respiratory disease mortality including total 42,440 deaths from 1 February 2013 to 31 December 2018 and meteorological data of the same period in Guangzhou City were collected. The distributed lag non-linear model was used to determine the optimal absolute humidity of death and discuss their non-linear lagged effects. Attributable fraction and population attributable mortality were calculated based on the optimal absolute humidity, defined as the minimum mortality absolute humidity. RESULTS: The association between absolute humidity and total respiratory disease mortality showed an M-shaped non-linear curve. In total, 21.57% (95% CI 14.20 ~ 27.75%) of respiratory disease mortality (9154 deaths) was attributable to non-optimum absolute humidity. The attributable fractions due to high absolute humidity were 13.49% (95% CI 9.56 ~ 16.98%), while mortality burden of low absolute humidity were 8.08% (95% CI 0.89 ~ 13.93%), respectively. Extreme dry and moist absolute humidity accounted for total respiratory disease mortality fraction of 0.87% (95% CI - 0.09 ~ 1.58%) and 0.91% (95% CI 0.25 ~ 1.39%), respectively. There was no significant gender and age difference in the burden of attributable risk due to absolute humidity. CONCLUSIONS Our study showed that both high and low absolute humidity are responsible for considerable respiratory disease mortality burden, the component attributed to the high absolute humidity effect is greater. Our results may have important implications for the development of public health measures to reduce respiratory disease mortality.
China/epidemiology* ; Cities/epidemiology* ; Climate ; Humans ; Humidity/adverse effects* ; Models, Theoretical ; Nonlinear Dynamics ; Respiratory Tract Diseases/mortality* ; Sensitivity and Specificity

Background: Carbohydrate antigen 72-4 (CA72-4) is generally recognized as a tumor marker of digestive system. However, elevated serum CA72-4 level is also evident in many benign diseases and healthy subjects, and its sensitivity in diagnosing malignant tumor is quite poor. Aims: To reassess the value of CA72-4 in tumor screening and diagnosis. Methods: Three cohorts were established in this study. Inpatients who underwent a serum CA72-4 measurement and had a definite final diagnosis were included into Cohort 1 (retrospective study). Inpatients with elevated serum CA72-4 level who had not been diagnosed as malignant tumor before admission were included into Cohort 2 (retrospective study). Individuals who underwent a serum CA72-4 measurement and willing to take a follow-up for at least 2 years were included into Cohort 3 (prospective study). Malignancies had been preliminarily excluded in all individuals in Cohort 3 before enrollment. Results: Among the 2 173 patients recruited in Cohort 1, the prevalence of positive serum CA72-4 was significantly higher in patients with malignancies than those without (16.4% vs. 7.4%, P<0.05). The sensitivity and specificity of CA72-4 for diagnosis of malignant tumor were 36.5% and 76.2%, respectively, at the cut-off value (2.955 U/mL) identified by ROC curve analysis. Among the 1 807 patients recruited in Cohort 2, most of the participants (76.5%) did not have malignancies. Serum CA72-4 level was associated with the histological classification, tumor differentiation and TNM staging of malignancies (P<0.05). Among the 376 individuals who underwent a follow-up for no less than 2 years in Cohort 3, elevated serum CA72-4 level did not increase the risk of malignant tumor (OR=1.268, 95% CI: 0.283-5.687). Conclusions: CA72-4 is not a sensitive marker for tumor screening, its value as an item in physical examination should be re-evaluated. In patients who had positive serum CA72-4 and malignant tumor was ruled out in initial examination, the necessity of long-term follow-up of serum CA72-4 needs to be discussed.

Objective:To describe the distributions of demographic and clinic pathological characteristics and relations with survival on female breast cancer patients in Guangzhou from 2008 to 2017.Methods:The baseline information of the subjects was obtained from the Guangzhou cancer registry and the outcomes were from the Cancer Follow-up System of Guangzhou. Kaplan-Meier was used to calculate the 1-, 3-, 5-year overall survival rates. Univariate and multivariate Cox proportional hazards regression models were used to identify the factors related to the overall survival.Results:Among the 12 465 breast cancer patients recruited in the study, the average age at diagnosis was 53.9 years old, with those aged 45 to 54 making up the largest proportion (43.9 %). Only 15.6 % of the patients had college or above degrees. Patients with normal BMI accounted for 78.2 %. Most of the patients (90.0 %) had received surgical treatment. Invasive ductal carcinoma appeared the most common histologic type, accounting for 82.3 %. Among the 2 640 patients diagnosed in the four large hospitals, clinical stages 0-Ⅰ, Ⅱ, Ⅲ and Ⅳ accounted for 35.0 %, 44.8 %, 17.2 % and 3.0 %, respectively. The proportions of ER-positive, PR-positive and HER-2 positive breast cancer were 79.5 %, 70.8 %, and 19.2 %, respectively. In terms of subtypes, Luminal B was the most common one, accounted for 53.3 %. The 1-, 3- and 5-year overall survival rates were 99.0 %, 95.3 % and 92.1 %, respectively. Results from the multivariate analysis indicated that factors as: age over 55 years old at diagnosis, advanced TNM stage, ER negative, PR negative, Luminal B subtype and triple-negative subtype were associated with poorer prognosis. Conclusions:Compared with the previous hospital-based studies in China, this population-based study revealed that the proportions of patients with advanced age, early clinical stage or ER positive breast cancer were relatively high and the overall survival rate for breast cancer was higher than that in the previous studies. Relationships between characteristics and prognosis of breast cancer were consistent with the previous findings.