Objective To explore the application value of cellular automata(CA)in simulating the epidemic spread of out-break of influenza A(H1N1).Methods The publications regarding influenza A(H1N1)from January 2009 to March 2015 were collected from the China National Knowledge Infrastructure(CNKI),epidemiological data of H1N1 were retrieved ac-cording to inclusion criteria,the Matlab 7.0 software was adopted to construct CA model for simulating and analyzing the epidemic of H1N1 occurred in a university in Chongqing between October 12 and November 20,2009.Results There were a total of 17 820 students in this university,the epidemic of influenza lasted 40 days in 2009;When the parameter,the ef-fective infection rate was 0.04,the model of CA fit well,and gave estimate for basic reproduction number (R0 )1.202. Conclusion CA has certain reliability in simulating epidemics of airborne infectious diseases,it can provide reference for the prevention and control of disease.

Objective To investigate the efficacy ,safety and compliance of mesalazine sustained‐release (SR) granules taking once daily or multi‐times daily in the treatment of patients with mild to moderate active ulcerative colitis .Methods Sixty patients with mild to moderate active ulcerative colitis were divided into group A ,B and C with 20 patients in each group .Group A received mesalazine SR granules 4 g once daily ,Group B with 2 g each time and twice daily ,Group C with 1 g each time and four times daily . The total course was eight weeks . The vital signs ,Mayo score ,compliance and adverse effects of patients were monitored at 0 ,4th ,8th weeks .At 0 and 8th weeks ,colonoscopy were performed . The parameters of efficacy assessment were clinical complete remission rate , clinical remission rate , efficacy rate ,mucosal healing rate ,remission time and safety .The F test ,t test or Chi‐square test was performed for comparison among groups .Results The clinical complete remission rate of group A ,B and C was 20% (4/20) ,10% (2/20) and 10% (2/20) ,respectively .The clinical complete remission rate was 70% (14/20) ,65% (13/20) and 70% (14/20) ,respectively .The efficacy rate was 95% (19/20) ,85%(17/20) and 90% (18/20) ,respectively .The mucosal healing rate was 70% (14/20) ,60% (12/20) and 50% (10/20) ,respectively .The side effects rate was 20% (4/20) ,15% (3/20) and 20% (4/20) .There was no significant difference between groups (all P > 0 .05) .The remission time of group A and B was (15 .4 ± 3 .7) days and (15 .6 ± 2 .9) days ,which were both shorter than that of group C (18 .4 ± 3 .6) days ,and the differences were statistically significant (t= 2 .661 and 2 .710 ,both P< 0 .05) .There was no significant difference among three groups in gender ,disease course , severity , location and clinical remission rate of sub‐groups .Conclusions The efficacy and safety of mesalazine SR granules taking once daily or multi‐times daily are similar in the treatment of patients with mild to moderate active ulcerative colitis .Once daily have better compliance than other regimens .

Objective To observe the clinical efficacy and safety of Biyuan Tongqiao granule combined with triamcinolone acetonide spray in the treatment of patients with chronic rhinosinusitis .Methods A total of 106 patients with chronic rhinosinusitis in the Traditional Chinese Medicine Hospital of Anji County from February 2015 to February 2017 were selected as study objects .According to different treatment plan , the patients were randomly divided into the control group and the combined group , with 53 cases in each group .The control group received triamcinolone acetonide nasal spray 220μg, 1 time/d, one week later , the dosage adjusted to 110μg, 1 time/d.The combined group was given Biyuan Tongqiao granules 15 g,three times /d on the basis of the treatment of the control group.The clinical efficacy,SONT -20,VAS score,paranasal sinus CT score and incidence rate of adverse reaction were analyzed before and after treatment in the two groups .Results The total effective rate of the combined group was 94.34％,which was higher than 81.13％ of the control group,the difference was statistically significant (χ2 =4.296,P=0.038).The SNOT-20,VAS and Lund-Mackey sinus CT score in the combined group were better than those in the control group,the differences were statistically significant (t=7.661,9.189,7.183, 9.269,10.470,all P<0.05).The incidence rate of adverse reactions in the two groups was 7.55％,the difference was not statistically significant (χ2 =0.000,P =1.000).Conclusion Biyuan Tongqiao granule combined with triamcinolone acetonide spray in the treatment of patients with chronic rhinosinusitis can improve the clinical efficacy and reduce pain of patients ,it is worthy of popularization and promotion in clinical .

Objective In order to reasonably reduce QY group and improve the accuracy of DRG,we analyzed the data of QY(ambiguity)group in the Diagnosis Related Groups in urology department of a three A and tertiary hospital.Methods Medical insurance settlement statements of urology department of a hospital in the DRG sub-platform of a municipal medical insur-ance bureau were collected from April 1,2022 to November 30,2022,extracting QY cases.The medical records of QY cases were extracted from the digital medical record browser of a hospital.Senior quality control physicians were organized to check medical records,disease classification and medical insurance settlement statements of QY group cases,analyzing the cases.Excel 2010 was used for statistical analysis of the data.Results ① 2 810 copies of medical insurance settlement statements were obtained,of which 43 cases were in the QY groups,accounting for 1.53％.②The cases mainly distributed in urinary system tumors(27.91％),neurogenic bladder(18.60％),prostatic hyperplasia(16.28％),ureteral diseases(11.62％),and ure-thral diseases(11.62％).(3)The total hospitalization cost of patients in QY groups was 731 684.1 yuan,and the average hospi-talization cost was 17 015.91 yuan.The total payment amount of DRG was 419 807.24 yuan,and the average payment amount was 9 762.96 yuan.④The causes of QY groups were as follows:There were 14 cases of DRG grouping rule defect,accounting for 32.56％;There were 29 cases of hospital management defects,accounting for 67.44％.Among the hospital management de-fects,13 cases(30.23％)of the medical insurance settlement statements were defective;There were 8 cases(18.60％)of er-rors in doctors'major diagnoses and major surgical operations.There were 8 cases(18.60％)of coding errors in major diagno-ses and major surgical operations.Conclusion To reasonable reduction QY group,it is necessary to optimize DRG grouping rules and strengthen hospital internal management.Only by paying attention to improve the connotation quality of medical re-cords,accurately classify disease and surgical name,strengthen the management and review of medical insurance settlement state-ments,and establish a long-term mechanism for DRG data quality control,we can further improve the accuracy of DRG and ac-tively promote the reform of medical insurance payment.

were no significant differences in the detection rate of recto-sigmoid colon,mid colon,right colon and total detection of polyps among the 3 groups (P >0.05).Conclusion 4-L split-dose PEG is better than the oth-er 2 regimens in the colon cleansing quality,so it can better reach the intestinal cleaning standards before enteroscopy,which is a more suitable regimen for bowel preparation.

Background/Aims: Risk of venous thrombosis is increased in patients with inflammatory bowel disease (IBD); data on Asian IBD patients is limited and status quo of thrombosis screening and prophylaxis are unknown. Therefore, we aimed to investigate the incidence, screening, prophylaxis, and risk factors for venous thrombosis among Asian IBD patients. Methods: Medical files of patients with Crohn’s disease (CD) and ulcerative colitis (UC) from 17 hospitals across China between 2011 and 2016 were reviewed for venous thrombosis, use of screening and prophylaxis. A case-control study was performed among hospitalized patients with venous thrombosis and their age-, sex-matched IBD controls hospitalized around the same period; disease characteristics and known provoking factors of venous thrombosis were recorded. Risk factors were analyzed in both univariate and logistic regression analyses. Results: A total of 8,459 IBD patients were followed for 12,373 person-year. Forty-six patients (0.54%) had venous thrombosis, yielding an incidence of 37.18 per 10,000 person-year. Incidence increased with age, especially among CD. Less than 20% of patients received screening tests and 35 patients (0.41%) received prophylaxis. Severe disease flare was an independent risk factor for venous thrombosis (odds ratio [95% confidence interval]: CD, 9.342 [1.813– 48.137]; UC, 5.198 [1.268–21.305]); past use of steroids and extensive involvement were 2 additional risk factors in CD and UC, respectively. Conclusions Incidence of venous thrombosis in China was 37.18 per 10,000 person-year (0.54%). Use of screening and prophylaxis were rare. Severe disease flare was an independent risk factor for thrombosis among hospitalized patients.

Background/Aims: Risk of venous thrombosis is increased in patients with inflammatory bowel disease (IBD); data on Asian IBD patients is limited and status quo of thrombosis screening and prophylaxis are unknown. Therefore, we aimed to investigate the incidence, screening, prophylaxis, and risk factors for venous thrombosis among Asian IBD patients. Methods: Medical files of patients with Crohn’s disease (CD) and ulcerative colitis (UC) from 17 hospitals across China between 2011 and 2016 were reviewed for venous thrombosis, use of screening and prophylaxis. A case-control study was performed among hospitalized patients with venous thrombosis and their age-, sex-matched IBD controls hospitalized around the same period; disease characteristics and known provoking factors of venous thrombosis were recorded. Risk factors were analyzed in both univariate and logistic regression analyses. Results: A total of 8,459 IBD patients were followed for 12,373 person-year. Forty-six patients (0.54%) had venous thrombosis, yielding an incidence of 37.18 per 10,000 person-year. Incidence increased with age, especially among CD. Less than 20% of patients received screening tests and 35 patients (0.41%) received prophylaxis. Severe disease flare was an independent risk factor for venous thrombosis (odds ratio [95% confidence interval]: CD, 9.342 [1.813– 48.137]; UC, 5.198 [1.268–21.305]); past use of steroids and extensive involvement were 2 additional risk factors in CD and UC, respectively. Conclusions Incidence of venous thrombosis in China was 37.18 per 10,000 person-year (0.54%). Use of screening and prophylaxis were rare. Severe disease flare was an independent risk factor for thrombosis among hospitalized patients.