Objective To explore and analyze the implementation effect of the combined traditional Chinese medicine(TCM)and Western medicine DRG payment model in TCM hospitals,aiming to provide a reference for the reform of medical in-surance payment methods in such hospitals.Methods R language was utilized to statistically analyze the costs and other indica-tors of the sample hospitals before and after the implementation of the combined TCM and Western medicine DRG payment within 1-2 years.Results Following the implementation of the combined TCM and Western medicine DRG payment,there was a de-crease in average hospitalization costs and average length of stay,accompanied by an increase in CMI(average weight).The cost structure underwent changes:the proportions of western medicine fees and auxiliary examination fees decreased,whereas the pro-portion of TCM treatment fees increased.Significant statistical differences were observed in each group of data(p＜2.2e-16).Conclusion The combined TCM and Western medicine DRG payment reform model can facilitate TCM hospitals in reducing medical costs,controlling medical expenses,optimizing the cost structure,and promoting the development of TCM diagnosis and treatment characteristics.

Objective To explore and analyze the implementation effect of the combined traditional Chinese medicine(TCM)and Western medicine DRG payment model in TCM hospitals,aiming to provide a reference for the reform of medical in-surance payment methods in such hospitals.Methods R language was utilized to statistically analyze the costs and other indica-tors of the sample hospitals before and after the implementation of the combined TCM and Western medicine DRG payment within 1-2 years.Results Following the implementation of the combined TCM and Western medicine DRG payment,there was a de-crease in average hospitalization costs and average length of stay,accompanied by an increase in CMI(average weight).The cost structure underwent changes:the proportions of western medicine fees and auxiliary examination fees decreased,whereas the pro-portion of TCM treatment fees increased.Significant statistical differences were observed in each group of data(p＜2.2e-16).Conclusion The combined TCM and Western medicine DRG payment reform model can facilitate TCM hospitals in reducing medical costs,controlling medical expenses,optimizing the cost structure,and promoting the development of TCM diagnosis and treatment characteristics.

Background The serious air pollution of highway toll booths poses a high occupational exposure risk to toll collectors. It is urgent to develop purification methods suitable for airborne particles and microbial pathogens in highway toll booths. Objective To verify the purification effect of low temperature plasma air purifiers on airborne particles and microbes in highway toll booths. Methods Based on controlled-intervention design, we selected three toll booths in an expressway toll station as on-site experimental locations for 6 d (no-intervention period: the low-temperature plasma purifier was turned off in the first three days; intervention period: the purifier was turned on from 9:00 to 17:00 in the following three days). The indoor and outdoor PM_2.5 and PM₁₀ concentrations were continuously monitored during the study. At 9:00, 12:00, and 17:00 of every day during the experiment, indoor and outdoor air samples were collected to analyze the concentration of airborne culturable colonies with a plankton sampler. Airborne particle samples were collected in the outermost exit continuously from 9:00 to 17:00 every day during the experiment using a medium flow particulate sampler, and the species and relative abundance of fungi and bacteria contained in the samples were analyzed by gene sequencing. Independent-sample t test was used to compare the concentration of indoor PM_2.5, PM₁₀, and culturable colonies between the intervention period and the non-intervention period. α diversity analysis, β diversity analysis, and t test were used to compare the diversity and relative abundance of specific species of bacteria and fungi, as well as typical pathogenic bacteria and fungi in the samples between the non-intervention period and the intervention period to reflect the purification effect of low temperature plasma air purifier on airborne PM_2.5, PM₁₀, and microorganisms. Results During the intervention period, the mean indoor concentrations of PM_2.5, PM₁₀, and culturable colonies were lower than those of the no-intervention period (P<0.01 or P<0.001). The ratios of indoor to outdoor concentration (I/O) of PM_2.5 and PM₁₀ during the intervention period were significantly lower than those of the no-intervention period (P<0.001), except the I/O of culturable colonies. Compared with the average concentration at 9:00, the average cleaning rates at 12:00 and 17:00 for PM_2.5 were 49.0% and 46.1%, for PM₁₀ were 49.7% and 45.4%, for airborne culturable colonies were 50.8% and 49.9%, respectively. The β diversity analysis showed that there were significant differences in composition at the level of species of bacteria, and at the levels of genus and species of fungi between the intervention and the no-intervention periods. The relative abundances of 10 species of bacteria such as Lactobacillus and 7 species of fungi such as Torula in the intervention period were significantly lower than those in the non-intervention period, but the relative abundances of fungi such as unclassified_f_cladosporiaceae, trichomerium, and cercospora were higher (P<0.05). For typical pathogenic bacteria, the relative abundances of Lactobacillus and Clostridium_sensu_stricto_1 during the intervention period were 73.5% and 86.9% lower than those in the no-intervention period, and the relative abundance of Talaromyces was 53.5% lower (P<0.05). Conclusion Low temperature plasma air purifier has a good purification effect on indoor PM_2.5, PM₁₀, and culturable colonies in highway toll booths, and likely a limited effect on some fungi.

ObjectiveTo evaluate the intervention effect of meteorological risk forecasting service on acute onset and medical expenses of chronic obstructive pulmonary disease（COPD） patients， and to provide scientific basis for the establishment of health management model for chronic obstructive pulmonary disease（COPD） patients. MethodsStudy subjects were recruited from chronic obstructive pulmonary patients aged ≥40 in Pudong New Area. Propensity score matching method was used to determine the intervention group and the control group. The control group received regular health education and follow-up management， and the intervention group was provided with meteorological and environmental risk forecasting services through WeChat， mobile phone short message service（SMS）and telephone. Finally， a total of2 589 subjects were included in the analysis， including 1 300 in the intervention group and 1 289 in the control group. General demographic data， past medical history and family history of COPD， COPD related knowledge and practice survey， COPD related symptom assessment， acute onset， health service utilization and medical expenses before and after intervention were collected through questionnaire survey. The differences of acute attack， health service utilization and related medical expenses between the two groups before and after intervention were compared to evaluate the intervention effect. ResultsIn terms of acute attacks， after intervention， the incidence of acute attacks in the intervention group was lower than that before intervention（χ²=52.901， P<0.001）， and the incidence of acute attacks in the groups with different intervention methods was lower than that before intervention （P<0.001）. WeChat had the best effect， decreasing the incidence by 14.4%， followed by mobile phone SMS SMS decreasing by 12.3%. In terms of utilization of health services， the outpatient rate due to acute attack was lower in the intervention group after intervention than that before intervention （χ²=7.129， P=0.008）， and the outpatient rate due to acute attack was lower in the subjects who received the forecast service through mobile phone SMS than that before intervention （χ²=4.675， P<0.001）. In terms of medical expenses， there was no significant difference between control group and intervention group with different intervention methods before intervention （P>0.05）. After intervention， the difference between the control group and the intervention group with different intervention methods was statistically significant （H=11.864， P<0.05）. The results of multiple comparisons showed that compared with the control group， the average annual medical expenses of patients receiving mobile phone SMS and telephone forecasting services after intervention were lower than those of the control group， and the difference was statistically significant （P<0.05）. ConclusionMeteorological risk forecasting service can reduce the acute onset of COPD， reduce the rate of consultation and medical expenses due to acute onset， and provide scientific basis for the basic COPD health management model.

Objective To assess the nutritional status of vitamin D and associated factors among adults of six ethnic minority groups native to Yunnan Province,and provide evidence for policy making.Methods Between May 2019 and August 2020,a total of 690 adults were selected from Jinuo,Bulang,Jingpo,Deang,Achang and Pumi ethnic groups according to the sex and age composition in the 6th national census.A questionnaire survey and an anthropometric examination were conducted by trained health workers,and serum 25(OH)D levels were determined with high-performance liquid chromatography-tandem mass spectrometry.Results The median of serum 25(OH)D was 28.7(P25～P75∶24.3～33.8)ng/mL,and the prevalence of vitamin D sufficiency,insufficiency and deficiency were 44.2%、47.5%and 8.3%,respectively.There were significant differences in serum 25(OH)D levels among the six ethnic groups(χ2=139.29,P<0.01).Multivariate logistic regression showed that ethnic groups living in higher latitude areas(Pumi,Jingpo,Deang,and Achang),women,and those whose BMI≥24.0 were more likely to be vitamin D insufficient or deficient.Conclusion More than half of the ethnic adults suffer from vitamin D malnutrition which also varies across ethnicities.Further surveillance and interventions among key areas and populations are needed.

Total hip arthroplasty(THA)is an effective treatment for elderly femoral neck fractures,mid-to late-stage femoral head necrosis,and end-stage hip osteoarthritis.However,serious complications such as aseptic loosening of the prosthesis,peripheral fractures,and dislocation of the prosthesis still exist following THA,which makes the selection of the appropriate hip prosthesis type and placement position before THA an important challenge for surgeons.Currently,the commonly used preoperative planning methods for THA mainly rely on static images from two-dimensional(2D)X-ray or three-dimensional(3D)computed tomography(CT),which fail to adequately consider the hip joint in weight-bearing as well as motion,lumbar-hip joint changes,and prosthetic impingement during motion.Recently,the dual fluoroscopic imaging system,as a new in-vivo,dynamic radiological imaging technology,provides comprehensive and accurate dynamic 3D data for THA preoperative planning.However,the technical process and expert consensus on preoperative 3D planning of THA using a dual fluoroscopic imaging system have not yet been established,which affects the promotion and application of this technology.In light of the above,national orthopaedic experts and related professional representatives discussed and proposed seven consensus issues,and the'expert recommendation rate'and'strong recommendation rate'were obtained through a questionnaire survey on the recommendations of the participating experts.This consensus aims to provide guidance and reference for the standardised application of preoperative 3D planning of THA using the dual fluoroscopic imaging system.

Total hip arthroplasty(THA)is an effective treatment for elderly femoral neck fractures,mid-to late-stage femoral head necrosis,and end-stage hip osteoarthritis.However,serious complications such as aseptic loosening of the prosthesis,peripheral fractures,and dislocation of the prosthesis still exist following THA,which makes the selection of the appropriate hip prosthesis type and placement position before THA an important challenge for surgeons.Currently,the commonly used preoperative planning methods for THA mainly rely on static images from two-dimensional(2D)X-ray or three-dimensional(3D)computed tomography(CT),which fail to adequately consider the hip joint in weight-bearing as well as motion,lumbar-hip joint changes,and prosthetic impingement during motion.Recently,the dual fluoroscopic imaging system,as a new in-vivo,dynamic radiological imaging technology,provides comprehensive and accurate dynamic 3D data for THA preoperative planning.However,the technical process and expert consensus on preoperative 3D planning of THA using a dual fluoroscopic imaging system have not yet been established,which affects the promotion and application of this technology.In light of the above,national orthopaedic experts and related professional representatives discussed and proposed seven consensus issues,and the'expert recommendation rate'and'strong recommendation rate'were obtained through a questionnaire survey on the recommendations of the participating experts.This consensus aims to provide guidance and reference for the standardised application of preoperative 3D planning of THA using the dual fluoroscopic imaging system.

Objective To investigate the effect of micro RNA (miR)-122 on cerebral ischemia/reperfusion (I/R) injury and its mechanism in mice. Methods Thirty-six male C57BL mice were randomly divided into a sham-operated group, a model group, a miR-122 mimics group and a miR-122 inhibitor group (n=9). The miR-122 NCs, inhibitor fragments and overexpression fragments were injected into the lateral ventricles of mice from the later 3 groups; 10 min after that, middle cerebral artery I/R injury models were induced by reforming Longa method. Twenty-four h after model making, real-time fluorescent quantitative PCR (qRT-PCR) was used to detect the miR-122 and insulin like growth factor 1-receptor (IGF-1R) mRNA expressions; cell apoptosis in the peripheral region of cerebral infarction was detected by immunofluorescent staining; the volumes of cerebral infarction and brain edema were measured by TTC staining; and IGF-1R protein expression was detected by Western blotting. Results As compared with the sham-operated group, the model group had significantly increased miR-122 expression and significantly increased brain infarction volume and edema volume (P<0.05). As compared with the model group, miR-122 mimics group had significantly increased miR-122 expression and significantly increased brain infarction volume and edema volume (P<0.05), while miR-122 inhibitor group had statically decreased miR-122 expression and significantly decreased brain infarction volume and edema volume (P<0.05). The number of apoptosis of peripheral cells in the cortical infarction area of mice in the sham-operated group, model group and miR-122 mimic group became lager successively, while the number of apoptosis of peripheral cells in the cortical infarction area of mice in the miR-122 inhibitor group was smaller than that in the model group. The IGF-1R mRNA and protein expressions in the cortical infracted peripheral zone of model group were significantly decreased as compared with those in the sham-operated group (P<0.05); the IGF-1R mRNA and protein expressions in the miR-122 mimics group were significantly decreased as compared with those in the model group (P<0.05), while those in the miR-122 inhibitor group were significantly increased as compared with those in the model group (P<0.05). Conclusion MiR-122 may be involved in the regulation of cerebral I/R for brain injury by inhibition of IGF-1R pathway.

Objective To explore the implementation styles on the therapeutic effects on the neurosurgical intensive care unit (NICU) patients. Methods Patients were enrolled during February 3, 2015 to February 3, 2016. The key point time was August 3, 2015 when the treatment in our NICU was fully implemented by NICU professional doctors. Based on this time point, all the enrolled patients were divided into non-NICU professional doctor implementing (NNPDI) group and NICU professional doctor implementing (NPDI) group. Thus non-NICU professional doctors and professional doctors were the leaders of diagnosis and treatment in tow groups. The length of hospital stay, complications, prognosis and other therapeutic outcomes were compared between two groups. Results The length of hospital stay was longer in NPDI group than that in NNPDI group (P<0.05). The incidence of water-electrolyte imbalance was lower in NPDI group than that in NNPDI group (P<0.05). There were no significant differences in the incidence of the ventilator-associated pneumonia (VAP), the hepatic and renal insufficiency, the intracranial infections and stress ulcers between the two groups (P>0.05). The proportion of referral to other wards and fatality rate were both lower in NPDI group than those in NNPDI group (P<0.05). And the discharge rate from NICU was higher in NPDI group than that of NNPDI group (P<0.05). There was no significant difference in the rate of patients left hospital without treatment between the two groups (P>0.05). Conclusion The NICU professional doctor implementing may be contribute to, at least in part, the improving of prognosis of NICU patients without obvious advantages in most complications. The level of professional management remains to be improved.

Background and objectiveIt is so far not clear that how myasthenia gravis (MG) affected the prognosis of thymoma patients. The aim of this assay is to compare the postoperative survival between patients with thymoma only and those with both thymoma and MG.MethodsThe Chinese Alliance for Research in Thymomas (ChART) registry recruited patients with thymoma from 18 centers over the country on an intention to treat basis from 1992 to 2012. Two groups were formed according to whether the patient complicated MG. Demographic and clinical data were reviewed, Patients were fol-lowed and their survival status were analyzed.Results There were 1,850 patients included in this study, including 421 with and 1,429 without MG. Complete thymectomy were done in 91.2% patients in MG group and 71.0% in non-MG group (P<0.05). There were more percentage of patients with the histology of thymoma AB, B1, or B2 (P<0.05) in MG group, and more percentage of patients with MG were in Masaoka stage I and II. The 5 year and 10 year OS rates were both higher in MG group (93%vs 88%; 83%vs 81%,P=0.034) respectively. The survival rate was signiifcantly higher in patients with MG when the Masaoka staging was III/IV (P=0.003). Among patients with advanced stage thymoma (stage III, IVa, IVb), the constitu-ent ratios of III, IVa, IVb were similar between MG and Non-MG group. Histologically, however, there were signiifcantly more proportion of AB/B1/B2/B3 in the MG group while there were more C in the non-MG group (P=0.000). Univariate analyses for all patients showed that MG, WHO classiifcation, Masaoka stage, surgical approach, chemotherapy and radiotherapy and resectability were signiifcant factors, and multivariate analysis showed WHO Classiifcation, Masaoka stage, and resectability were strong independent prognostic indicators.ConclusionAlthough MG is not an independent prognostic factor, the sur-vival of patients with thymoma was superior when MG was present, especially in late Masaoka stage patients. Possible reasons included early diagnosis of the tumor, better histologic types, an overall higher R0 resection and less recurrence.