1.Textural Research on Key Information of Chaihu Guizhitang
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):199-210
Chaihu Guizhitang is one of the classical formulas in the Catalogue of Ancient Classical Formulas (the second batch). Through extensive searching and systematic review of ancient medical books on Chaihu Guizhitang, this study summarized the key information of this formula, which encompassed the origin and development, medicinal composition, original plants and processing, dosage, preparation method, usage, compatibility, and indications. A total of 173 valid data entries were obtained, involving a total of 97 ancient books of traditional Chinese medicine. Chaihu Guizhitang is first recorded in ZHANG Zhongjing's Treatise on Cold Damage and consists of nine herbs: Bupleuri Radix, Scutellariae Radix, Cinnamomi Ramulus, Paeoniae Alba Radix, Ginseng Radix et Rhizoma, Pinelliae Rhizoma, Glycyrrhizae Radix et Rhizoma, Rhizoma Zingiberis Recens, and Jujubae Fructus. In ancient medical books, this formula has synonyms such as Chaihu Jia Gui Tang, Chaihu Jia Guizhitang, and Guizhi Chaihu Ge Ban Tang. The medicinal composition of this formula recorded in ancient medical books is basically consistent with that of the original formula, and it is thus recommended that the composition of the original formula should be followed in the current clinical application. The original plants of the herbal medicines in this formula are in accordance with those in the Pharmacopoeia of the People's Republic of China (2020 edition). In terms of processing methods, Pinelliae Rhizoma processed with ginger, and Glycyrrhizae Radix et Rhizoma is stir-fried. Other herbal medicines in this formula are used with the raw materials. According to the record in the Treatise on Cold Damage, Chaihu Guizhitang is mainly used to treat diseases involving Greater Yang and Lesser Yang. Ancient medical books record that this formula can treat sudden pain in the heart and abdomen, cold abdominal colic, delirium, malaria, thermal imbalance of kidney Qi, and motive Qi. Considering modern medication practice, it is recommended that Chaihu Guizhitang is composed of 14.92 g Bupleuri Radix, 5.60 g Scutellariae Radix, 5.60 g Cinnamomi Ramulus, 5.60 g Paeoniae Alba Radix, 5.60 g Ginseng Radix et Rhizoma, 5.60 g Rhizoma Zingiberis Recens, 4.66 g Pinelliae Rhizoma, 3.73 g Glycyrrhizae Radix et Rhizoma, and 4.30 g Jujubae Fructus, which should be decocted with 1 400 mL water to reach a volume of 600 mL. The decoction should be taken warm after meals, 200 mL each time, three times a day.
2.Comparison of the population covered by the 2024 version of the WHO's hepatitis B prevention and treatment guidelines and the Chinese antiviral treatment guidelines
Bingqiong WANG ; Shan SHAN ; Yuanyuan KONG ; Xiaoning WU ; Jialing ZHOU ; Yameng SUN ; Shuyan CHEN ; Hao WANG ; Xiaoqian XU ; Shuai XIA ; Jidong JIA ; Hong YOU
Chinese Journal of Hepatology 2024;32(6):525-531
Objective:This study aims to compare the antiviral treatment similarities and differences in the population covered by the 2024 version of the World Health Organization's (WHO) hepatitis B prevention and treatment guidelines and the current Chinese hepatitis B prevention and treatment guidelines, so as to explore their impact on the indications for antiviral therapy in Chinese patients with chronic hepatitis B (CHB).Methods:The information of patients with chronic hepatitis B virus infection who did not receive antiviral treatment was collected through the registration database of the China Clinical Research Platform for Hepatitis B Elimination. Descriptive statistics were conducted on the demographic, blood, biochemical, and virological levels of patients according to the treatment recommendations of the two versions of the guidelines. The Mann-Whitney U test and χ2 test were used to compare the differences and proportional distribution of the treatment populations covered by the two guidelines. The χ2 test was used to analyze the coverage rate of different antiviral treatment indications.Results:A total of 21,134 CHB patients without antiviral treatment were enrolled. 69.4% of patients met the 2024 versions of the WHO guidelines' recommendations. 85.0% of patients met the current Chinese hepatitis B prevention and treatment guidelines. The WHO guidelines for antiviral therapy indications were met in younger patients with higher levels of ALT, AST, and APRI scores, as well as greater proportion of patients with higher viral loads (P<0.001). The WHO guidelines recommended a cut-off value of APRI>0.5, which raised the proportion of patients on antiviral therapy from 6.6% to 30.9%. 45.7% of patients met the antiviral indications for HBV DNA >2000 IU/ml with abnormal transaminase (ALT>30 U/L for males and ALT>19 U/L for females). The reduced APRI diagnostic cut-off value and ALT treatment threshold had further increased the treatment coverage rate by 91.6% in patients with chronic HBV infection in line with the 2024 versions of WHO guidelines.Conclusion:The reduction of the APRI diagnostic cut-off value and the ALT treatment threshold, based on the current hepatitis B guidelines of China, will further improve the treatment coverage of CHB patients.
3.The prognostic value of serum Dnase1L3, CAR combined with MHR in decompensated hepatitis B cirrhosis patients
Yunhui WU ; Jingchao DONG ; Liang MIAO ; Jidong ZHANG
Journal of Chinese Physician 2024;26(1):76-81
Objective:To explore the prognostic value of serum deoxyribonuclease 1 like 3 (Dnase1L3), C-reactive protein/albumin ratio (CAR) combined with monocyte to high-density lipoprotein cholesterol ratio (MHR) in decompensated hepatitis B cirrhosis patients.Methods:A prospective selection was conducted on 236 decompensated hepatitis B cirrhosis patients (liver disease group) admitted to the Third Hospital of Qinhuangdao from January 2020 to December 2021, and 185 healthy volunteers (control group) who underwent outpatient physical examinations. The serum levels of Dnase1L3, CAR, MHR, and liver function were detected, and Pearson analysis was conducted to investigate the correlation between Dnase1L3, CAR, MHR, and liver function. Tracking the survival status of patients after 30 days of hospitalization, the risk factors affecting 30 day mortality in decompensated hepatitis B cirrhosis patients were analyzed using a multivariate logistic regression equation. The receiver operating characteristic (ROC) curve analysis was used to assess the value of Dnase1L3, CAR, and MHR in predicting 30 day in-hospital mortality in decompensated hepatitis B cirrhosis patients.Results:The serum levels of Dnase1L3, alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBiL), CAR, and MHR in the liver disease group were higher than those in the control group (all P<0.05). The serum levels of Dnase1L3, CAR, and MHR in the liver disease group were positively correlated with AST, ALT, and TBiL (all P<0.05). Among 236 patients, 32 died within 30 days. Model for end-stage liver disease (MELD) scores>18, high Dnase1L3, high CAR, and high MHR were risk factors for 30 day mortality in decompensated hepatitis B cirrhosis patients (all P<0.05). The combined prediction of Dnase1L3, CAR, MHR, and MELD scores for 30 day mortality in decompensated patients with hepatitis B cirrhosis showed an area under the curve of 0.904, which was higher than the predicted values of 0.719, 0.678, 0.763, and 0.742 for individual indicators. Conclusions:The serum Dnase1L3 levels, CAR, and MHR are elevated in patients with decompensated hepatitis B cirrhosis, and are associated with the degree of liver function damage and mortality within 30 days of hospitalization. They have high value in predicting the prognosis of decompensated hepatitis B cirrhosis.
4.Ancient Literature Analysis and Key Information Textual Research of Classic Formula Guizhi Mahuang Geban Tang
Shiyan LIU ; Yihang LOU ; Jidong WU ; Renshou CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):10-19
Guizhi Mahuang Geban Tang derived from ZHANG Zhongjing's Treatise on Cold Damage is included in the Catalogue of Ancient Classic formulas (the second batch) issued by the National Administration of Traditional Chinese Medicine. By reviewing the ancient literature related to Guizhi Mahuang Geban Tang, this study analyzed the origin, medicinal composition, original plants and processing, dosage, decocting method, compatibility, effects, and indications of this formula. A total of 186 records of Guizhi Mahuang Geban Tang were obtained, involving 108 ancient books of traditional Chinese medicine. There are 6 synonyms of Guizhi Mahuang Geban Tang. This formula consists of Cinnamomi Ramulus, Paeoniae Radix Alba, Zingiberis Rhizoma Recens, Glycyrrhizae Radix et Rhizoma, Ephedrae Herba, Jujubae Fructus, and Armeniacae Semen Amarum, the original plants and processing of which are clear. With consideration to the dosage in modern clinical practice, it is recommended that the formula should be composed of 7.67 g Cinnamomi Ramulus, 4.60 g Paeoniae Radix Alba, 4.60 g Zingiberis Rhizoma Recens, 4.60 g Glycyrrhizae Radix et Rhizoma, 4.60 g Ephedrae Herba, 4.00 g Jujubae Fructus, and 2.60 g Armeniacae Semen Amarum. The decoction should be prepared by boiling Ephedrae Herba with 1 000 mL water for 15 min before the addition of other medicines, and the mixture was decocted to reach a volume of 360 mL, and 120 mL of the decoction should be taken warm once. Guizhi Mahuang Geban Tang is a combination of Guizhi Tang and Mahuang Tang, with the effects of dispersing wind cold and harmonizing nutrient-defense. The main diseases treated by this formula in the past dynasties have expanded compared with those in Treatise on Cold Damage. The traditional indications of this formula involve the diseases of greater Yang, reverting Yin, Yang brightness, and lesser Yin. In addition to common cold due to wind-cold, this formula can be used to treat headache, bitter mouth, dry throat, full abdomen, panting, heat invading blood chamber in women, skin itching, exanthema variolosum, syncope, and hardly perceivable pulse. In modern clinical practice, Guizhi Mahuang Geban Tang is used for treating pulmonary diseases such as upper respiratory tract infection, skin diseases (e.g., urticaria, eczema, psoriasis, and neurodermatitis), kidney failure, and diabetes complicated with pruritus.
5.Clinical efficacy of transcatheter arterial chemoembolization combined with lenvatinib and camrelizumab in the treatment of advanced hepatocellular carcinoma
Xuexian ZHANG ; Yuhan DING ; Wei LI ; Qingwei LI ; Jun ZHANG ; Dan DUAN ; Yongle LI ; Jian LONG ; Jidong YANG ; Chenglong ZHANG ; Peng WU ; Huijuan SUN ; Geng WU
Journal of Interventional Radiology 2024;33(1):57-62
Objective To evaluate the safety and efficacy of transcatheter arterial chemoembolization(TACE)combined with lenvatinib and camrelizumab in the treatment of advanced hepatocellular carcinoma(HCC).Methods The clinical data of a total of 63 patients with advanced HCC,who received TACE combined with lenvatinib and camrelizumab(triple therapy)or TACE combined with lenvatinib(dual therapy)at the Jingmen Municipal People's Hospital of China between April 2020 and December 2021,were retrospectively analyzed.Triple therapy group had 30 patients,and dual therapy group had 33 patients.The post-treatment tumor response,disease progression-free survival(PFS),overall survival(OS),and the incidence of adverse drug reactions were recorded.Results The median follow-up period of the two groups was 14 months(range of 4-26 months).Compared with the dual therapy group,in the triple therapy group the objective response rate(ORR)was remarkably higher(83.3%vs.57.6%,P=0.026),the disease control rate(DCR)was obviously higher(93.3%vs.69.7%,P=0.039),the median PFS was significantly longer(8.0 months vs.5.0 months,P<0.01),and the median OS was strikingly longer(24.0 months vs.12.0 months,P=0.004).No statistically significant difference in the incidence of adverse drug reactions existed between the two groups(P>0.05).Conclusion For the treatment of advanced HCC,TACE combined with lenvatinib and camrelizumab is clinically safe and effective.(J Intervent Radiol,2024,32:57-62)
6.Analysis on risk factors for prognosis of traumatic brain injury in adults and establishment of the prediction model
Mingdong BAO ; Junmiao GE ; Qiuzi YANG ; Jidong SUN ; Xiuquan WU ; Xiaofan JIANG ; Peng LUO
Chinese Journal of Trauma 2023;39(3):229-237
Objective:To analyze risk factors for prognosis of adult patients with traumatic brain injury (TBI), construct the prognostic model of TBI and evaluate its predictive value.Methods:A case-control study was used to analyze the clinical data of 522 patients with TBI admitted to Xijing Hospital of Air Force Medical University from March 2011 to September 2019, including 438 males and 84 females; aged 18-75 years [(44.9±15.0)years]. According to the Glasgow outcome score (GOS) at discharge, the patients were divided into good prognosis group (GOS 4-5 points, n=165) and poor prognosis group (GOS 1-3 points, n=357). The two groups were compared with regards to qualitative data such as sex, underlying diseases, causes of injury, multiple injuries, open injuries, intracranial foreign bodies, cerebral herniation, consciousness status on admission and at discharge, surgery, lung infection on admission, tracheostomy, ventilator-assisted ventilation, hospital-acquired pneumonia/pathogenic bacteria and intracranial infection, and quantitative data such as Glasgow coma score (GCS) on admission and at discharge, age, measurements on admission [systolic blood pressure, diastolic blood pressure, mean arterial pressure, temperature, heart rate, creatinine, urea nitrogen, blood sodium, blood potassium, blood glucose, prothrombin time (PT), activated partial thromboplastin time (APTT), platelets, international normalized ratio (INR), pupil size of both eyes] and length of hospital stay. Univariate analysis and Lasso regression analysis were used to screen the risk factors affecting the prognosis of TBI patients, and the selected influencing factors were included in multivariate Logistic regression analysis to identify independent risk factors and construct regression equations. R was used to draw a visual nomogram based on regression equation for predicting the prognosis of TBI patients. The prognostic predictive value of the nomogram was evaluated by using the receiver operating characteristic (ROC) curve, and the area under the curve (AUC), Youden index, sensitivity, specificity and consistency index (C index) were calculated. Results:Univariate analysis showed that there were significant differences between the two groups in underlying diseases, open injuries, cerebral herniation, consciousness status on admission and at discharge, lung infection on admission, tracheostomy, ventilator-assisted ventilation, hospital-acquired pneumonia/pathogenic bacteria, GCS on admission and at discharge, age, and measurements on admission (systolic blood pressure, mean arterial pressure, body temperature, heart rate, creatinine, urea nitrogen, blood potassium, blood glucose, PT, INR, pupil size of right eye) (all P<0.05 or 0.01). There were no significant differences between the two groups in gender, causes of injury, multiple injuries, intracranial foreign bodies, surgery, intracranial infection, measurements on admission (diastolic blood pressure, blood sodium, APTT, platelets, pupil size of left eye) and length of hospital stay (all P>0.05). After screening by Lasso regression model, the results of multivariate Logistic regression analysis showed that GCS on admission ( OR=0.67, 95% CI 0.62, 0.73, P<0.01), age ( OR=1.03, 95% CI 1.01, 1.04, P<0.01), blood glucose on admission ( OR=1.17, 95% CI 1.06, 1.30, P<0.01) and INR on admission ( OR=17.08, 95% CI 2.12, 137.89, P<0.01) could be used as the main risk factors to construct the prediction model, and the regression equation was constructed: Logit [ P/(1- P)]=-0.398× "GCS on admission"+0.024× "age"+0.158×"blood glucose on admission"+2.838×"INR on admission"-1.693. The AUC for the prognosis prediction in adult patients with TBI using R based on a visual nomogram model was 0.87 (95% CI 0.83, 0.89, P<0.01). The Youden index for the predicted probability was 0.60 (sensitivity of 85.2% and specificity of 75.2%), with the C index of 0.87. Conclusion:Age, GCS on admission, blood glucose on admission and INR on admission are the main risk factors affecting the prognosis of TBI in adults, and the nomogram drawn by these parameters can better predict their clinical outcome.
7.Hepatocellular carcinoma prediction model performance decreases with long-term antiviral therapy in chronic hepatitis B patients
Xiaoning WU ; Xiaoqian XU ; Jialing ZHOU ; YaMeng SUN ; Huiguo DING ; Wen XIE ; Guofeng CHEN ; Anlin MA ; HongXin PIAO ; Bingqiong WANG ; Shuyan CHEN ; Tongtong MENG ; Xiaojuan OU ; Hwai-I YANG ; Jidong JIA ; Yuanyuan KONG ; Hong YOU
Clinical and Molecular Hepatology 2023;29(3):747-762
Background/Aims:
Existing hepatocellular carcinoma (HCC) prediction models are derived mainly from pretreatment or early on-treatment parameters. We reassessed the dynamic changes in the performance of 17 HCC models in patients with chronic hepatitis B (CHB) during long-term antiviral therapy (AVT).
Methods:
Among 987 CHB patients administered long-term entecavir therapy, 660 patients had 8 years of follow-up data. Model scores were calculated using on-treatment values at 2.5, 3, 3.5, 4, 4.5, and 5 years of AVT to predict threeyear HCC occurrence. Model performance was assessed with the area under the receiver operating curve (AUROC). The original model cutoffs to distinguish different levels of HCC risk were evaluated by the log-rank test.
Results:
The AUROCs of the 17 HCC models varied from 0.51 to 0.78 when using on-treatment scores from years 2.5 to 5. Models with a cirrhosis variable showed numerically higher AUROCs (pooled at 0.65–0.73 for treated, untreated, or mixed treatment models) than models without (treated or mixed models: 0.61–0.68; untreated models: 0.51–0.59). Stratification into low, intermediate, and high-risk levels using the original cutoff values could no longer reflect the true HCC incidence using scores after 3.5 years of AVT for models without cirrhosis and after 4 years of AVT for models with cirrhosis.
Conclusions
The performance of existing HCC prediction models, especially models without the cirrhosis variable, decreased in CHB patients on long-term AVT. The optimization of existing models or the development of novel models for better HCC prediction during long-term AVT is warranted.
8.Histological regression and clinical benefits in patients with liver cirrhosis after long-term anti-HBV treatment
Shuyan CHEN ; Yameng SUN ; Jialing ZHOU ; Xiaoning WU ; Tongtong MENG ; Bingqiong WANG ; Hui LIU ; Tailing WANG ; Chen SHAO ; Xinyu ZHAO ; Xiaoqian XU ; Yuanyuan KONG ; Xiaojuan OU ; Jidong JIA ; Hong YOU
Chinese Journal of Hepatology 2022;30(6):583-590
Objective:Our study aims to determine histological regression and clinical improvement after long-term antiviral therapy in hepatitis B virus-related cirrhosis patients.Methods:Treatment-na?ve chronic hepatitis B patients with histologically or clinically diagnosed liver cirrhosis were enrolled. Liver biopsies were performed after 5 years entecavir-based antiviral treatment. Patients were followed up every 6 months. Cirrhosis regression was evaluated based on Metavir system and P-I-R score. Clinical improvement was evaluated before and after the long-term treatment. Kruskal Wallis test and Wilcoxon signed-rank test were used for continuous variables, Fisher's exact test was used for categorical variables and multivariate analysis was performed using logistic regression analysis.Results:Totals of 73 patients with HBV-related liver cirrhosis were enrolled. Among them, 30 (41.1%) patients were biopsy proved liver cirrhosis and the remaining 43 (58.9%) cirrhotic patients were diagnosed by clinical features. Based on Metavir system and P-I-R score, 72.6% (53/73) patients attained histological regression. Furthermore, 30.1% (22/73) were defined as significant regression (Metavir decrease ≥2 stage), 42.5% (31/73) were mild regression (Metavir decrease 1 stage or predominantly regressive by P-I-R system if still cirrhosis after treatment) and 27.4% (20/73) were the non-regression. Compared to levels of clinical characteristics at baseline, HBV DNA, ALT, AST, liver stiffness(decreased from 12.7 to 6.4 kPa in significant regression, from 18.1 to 7.3 kPa in mild regression and from 21.4 to 11.2 kPa in non-regression)and Ishak-HAI score significantly decreased after 5 years of anti-HBV treatment, while serum levels of platelets and albumin improved remarkably ( P<0.05). In multivariate analysis, only the pre-treatment liver stiffness level was associated with significant regression ( OR=0.887, 95% CI: 0.802-0.981, P=0.020). Conclusions:After long-term antiviral therapy, patients with HBV-related cirrhosis are easily to attain improvements in clinical parameters, while a certain percentage of these patients still cannot achieve histological reversal.
9.Analysis of change in esophageal varices and clinical characteristics in hepatitis B virus-related cirrhosis after antiviral therapy
Bingqiong WANG ; Xiaoning WU ; Jialing ZHOU ; Yameng SUN ; Tongtong MENG ; Shuyan CHEN ; Qiushuang GUAN ; Zhiying HE ; Shanshan WU ; Yuanyuan KONG ; Xiaojuan OU ; Jidong JIA ; Hong YOU
Chinese Journal of Hepatology 2022;30(6):591-597
Objective:To clarify the effect and related factors of antiviral therapy on the change of esophageal varices in patients with hepatitis B virus-related cirrhosis.Methods:Fifty-two cases with hepatitis B virus-related cirrhosis who underwent endoscopy before and after antiviral therapy were selected from prospective cohorts. Patients were divided into three groups: no, mild, and moderate-severe based on the degree of esophageal varices. The changes in the severity of esophageal varices in each group were compared after antiviral therapy. Clinical characteristics (platelet, liver and kidney function, liver stiffness, and virological response) of patients with different regressions were analyzed. Measurement data were analyzed by independent sample t-test, one-way ANOVA, Mann-Whitney U test and Kruskal-Wallis H test, and Chi-Square test was used for count data.Results:All patients received entecavir-based antiviral therapy. The median treatment time was 3.1 (2.5-4.4) years. The proportion of patients without esophageal varices increased from 30.8% to 51.9%, the proportion of mild esophageal varices decreased from 40.4% to 30.8%, and the proportion of patients with moderate-to-severe esophageal varices decreased from 28.8% to 17.3% ( χ2=14.067, P=0.001). A total of 40.4% of patients had esophageal varices regression, and 13.5% had esophageal varices progression. The progression rate was significantly higher in patients with moderate-severe esophageal varices than patients with mild and no esophageal varices ( χ2=28.126, P<0.001), and 60.0% of patients with moderate-severe esophageal varices still remained in moderate-severe state after antiviral treatment. Baseline platelet count and 5-year mean change rates were significantly lower in patients with progressive moderate-to-severe esophageal varices than in those without progression (+3.3% vs. +34.1%, Z=7.00, P=0.027). Conclusion:After effective antiviral treatment, 40.4% of patients with hepatitis B virus-related cirrhosis combined with esophageal varices has obtained esophageal varices regression, but those with moderate to severe esophageal varices still have a considerable risk of progression while receiving mono antiviral treatment only. Thrombocytopenia and without significant improving are the clinical signs of progression risk after receiving antiviral treatment.
10.Influencing factors of visits of residents to contracted family doctors in a Beijing community
Yan JI ; Jidong WU ; Ai FENG ; Qingyun XUE ; Jing DING
Chinese Journal of General Practitioners 2022;21(10):937-941
Objective:To analyze the influencing factors related to visiting rate of residents to contracted family doctors in a community health service center in Beijing.Methods:One thousand patients with contracted family doctor services who visited our center from January 2019 to December 2019 were selected for retrospective analysis. According to the corresponding visiting rate of contracted family doctors,patients were divided into low corresponding visiting rate, medium corresponding visiting rate and high corresponding visiting rate, and the influencing factors were analyzed.Results:Among the 1 000 patients, 481 (48.1%) were in the high corresponding visiting rate group, 342 (34.2%) in the middle corresponding visiting rate group, and 177 (17.7%) in the low corresponding visiting rate group. Univariate analysis showed that the corresponding visit rate was significantly associated with the age, marital status and educational level of patients, history of hypertension, the number of family doctor visits, the total visiting time and the consultation time per year (χ 2=12.55, 12.42, 7.69, 21.69, 253.97, 49.54, 9.07, all P<0.05). Multivariate logistic regression analysis showed that compared with the high corresponding visiting rate group, fewer of family doctor visits ( OR=0.68, 95 %CI: 0.58-0.78), lower education level( OR=0.65, 95 %CI: 0.46-0.92), history of hypertension ( OR=0.09, 95 %CI: 0.02-0.49), and 18-65 years old( OR=1.80, 95 %CI: 1.27-2.55) were the influencing factors for the low corresponding family doctor visiting rate(all P<0.05); while fewer of family doctor visits( OR=0.91, 95 %CI: 0.83-0.99),lower education level ( OR=0.74, 95 %CI: 0.55-0.98)and history of hypertension( OR=0.09, 95 %CI: 0.02-0.44)were the related factors of the medium corresponding visiting rate(all P<0.05). Conclusions:The visiting rate of patients to the contracted family doctor needs to be improved. The number of consultations of the contracted family doctor, educational background, history of hypertension, and age are the influencing factors of the corresponding visiting rate.

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