1.Research on Objective Characteristics of Tongue Manifestation in 315 Patients with Coronary Heart Disease
Mengyao DUAN ; Chuhao WANG ; Yuquan TAN ; Kun LIAN ; Xintian SHOU ; Yang JIANG ; Boyan MAO ; Zhixi HU
Journal of Traditional Chinese Medicine 2024;65(9):921-927
ObjectiveTo investigate the objective characteristics of tongue manifestations in patients with coronary heart disease (CHD). MethodsA total of 315 participants with CHD were recruited in the CHD group, and 211 healthy participants who underwent physical examination were recruited as the healthy control group. In addition, according to the common comorbidities (primary hypertension, carotid atherosclerosis, type 2 diabetes mellitus, fatty liver, hyperlipidaemia, heart failure, and cerebral infarction) in 315 participants with CHD, each comorbidity was classified into a group of comorbidities with that disease and a group of non-comorbidities. Tongue images were captured using a TFDA-1 tongue diagnostic instrument to characterise the tongue body (TB) and tongue coating (TC), comparing the RGB, HIS, and Lab colour spaces in the chromaticity index (R, red; G, green; B, blue; H, hue; I, intensity; S, saturation; L, lightness; a, red-green axis; b, yellow-blue axis), the tongue coating thickness index (per-All), contrast (CON), angular second moment (ASM), entropy (ENT), and mean (MEAN) in texture metrics. ResultsCompared with the healthy control group, the characteristic indexes of tongue body in CHD group showed lower TB-R, TB-G, TB-B, TB-I, TB-L and higher TB-H, TB-b; and the characteristic indexes of tongue coating in CHD group showed lower TC-R, TC-B and higher TC-CON, TC-MEAN, TC-H, TC-b (P<0.05 or P<0.01). Compared with non-combined primary hypertension group, CHD combined primary hypertension group showed higher per-All, TB-G, TB-L, and lower TB-a, TC-a (P<0.05); compared with the non-combined carotid atherosclerosis group, CHD combined carotid atherosclerosis group showed higher TB-CON, TB-ENT, TB-MEAN, and lower TB-ASM (P<0.05 or P<0.01); compared with the non-combined type 2 diabetes mellitus group, CHD combined type 2 diabetes mellitus group showed lower per-All and higher TB-H (P<0.05 or P<0.01); compared with the non-combined fatty liver group, CHD combined fatty liver group showed higher TB-CON, TB-MEAN, TB-ENT, and lower TB-ASM and TC-S (P<0.05 or P<0.01); compared with the non-combined hyperlipidaemia group, CHD combined hyperlipidaemia group showed lower TB-S and TB-a (P<0.05); compared with non-combined heart failure group, CHD combined heart failure group showed lower TB-R, TB-G, TB-I, TB-L, and higher TB-a (P<0.05 or P<0.01); compared with non-combined cerebral infarction group, CHD combined cerebral infarction group showed higher TC-CON, TC-ENT, TC-MEAN, and lower TC-ASM (P<0.05 or P<0.01). ConclusionCompared to healthy individuals, patients with CHD tend to have darker tongue colours and rougher TC textures. Compared with non-comorbidity participants, those with primary hypertension tended to be lighter tongue colour and thicker tongue coating, those with carotid atherosclerosis had paler tongue body, those with type 2 diabetes mellitus had thinner tongue coating, those with fatty liver disease had paler tongue body and whiter tongue colour, those with hyperlipidaemia and heart failure had paler tongue colour, and those with cerebral infarction had rougher tongue texture.
2.Atrial fibrillation detection using millimeter-wave radar
Hengji ZHOU ; Yihan YANG ; Yuanhui HU ; Yuguang CHU ; Xintian SHOU ; Yaping YOU ; Wenjing XUE ; Shaowei FAN ; Yong WANG ; Huiliang SHEN
Chinese Journal of Medical Physics 2024;41(1):81-87
A novel technology is proposed for non-contact and real-time detection of atrial fibrillation using millimeter-wave radar.A 60 GHz PCR millimeter wave radar is used to continuously detect the chest echo signal of the subject.After signal acquisition,I-Q signal is generated through I-Q demodulation,and the signal phase information is extracted using effective points phase trend evaluation for obtaining the signals from oscillations in the chest wall,from which the respiratory signals and cardiac signals are extracted through digital filtering for the analysis of cardiac movement.Whether the atrial fibrillation occurs or not is determined by the characteristics of atrial fibrillation wave in the time domain.The effective points phase trend evaluation for extracting more accurate signal phase information and the time-domain method for real-time atrial fibrillation detection are the innovations of the study.The experimental results show that the proposed method achieves a detection accuracy of 99.2%in clinic.
3.Clinical study of modified suspension reduction method combined with percutaneous vertebroplasty in the treatment of thoracolumbar osteoporotic compression fracture
Yu-Zhou LU ; Yu WANG ; Xiao-Xu YANG ; Cheng-Qiang WU ; Shou-Cui ZHANG ; Jin-Guo WANG ; Ya-Dong WU ; Dong QIN ; Lin DING
China Journal of Orthopaedics and Traumatology 2024;37(1):21-26
Objective To investigate the clinical effect of modified suspension reduction method combined with percuta-neous vertebroplasty in the treatment of osteoporotic thoracolumbar compression fractures.Methods From February 2020 to October 2021,92 patients with thoracolumbar osteoporotic compression fracture were treated by percutaneous vertebroplasty.According to different treatment methods,they were divided into the observation group and the control group.The observation group was treated with modified suspension reduction and then percutaneous vertebroplasty,while the control group was treated with percutaneous vertebroplasty alone.The observation group(47 cases),including 20 males and 27 females,the age ranged from 59 to 76 years old with an average of(69.74±4.50)years old,fractured vertebral bodies:T10(2 cases),T11(7 cases),T12(19 cases),L1(14 cases),L2(5 cases);the control group(45 cases),including 21 males and 24 females,the age ranged from 61 to 78 years old with an average of(71.02±3.58)years old,fractured vertebral bodies:T10(3 cases),T11(8 cases),T12(17 cas-es),L1(12 cases),L2(5 cases);The leakage of bone cement were observed,the visual analogue scale(VAS),Oswestry lumbar dysfunction index(ODI),anterior vertebrae height(AVH),Cobb angle of kyphosis and the amount of bone cement injected before and after operation were recorded and compared between the two groups.Results All patients were followed up,ranged from 6 to1O with an average of(8.45±1.73)months.Two patients ocurred bone cement leakage in observation group and 3 pa-tients in control group.AVH of observation group increased(P<0.05)and Cobb angle of injured vertebrae decreased(P<0.05).Cobb angle of injured vertebrae and AVH of the control group were not significantly changed(P>0.05).Cobb angle of injured vertebrae of the observation group was lower than that of control group(P<0.05)and AVH was higher than that of the control group(P<0.05).In the observation group,VAS before operation and 1 week,3 and 6 months after operation respective-ly were(7.32±1.05)scores,(3.56±1.18)scores,(1.83±0.67)scores,(1.27±0.34)scores,and ODI were(40.12±14.69)scores,(23.76±10.19)scores,(20.15±6.39)scores,(13.45±3.46)scores.In the control group,VAS before operation and 1 week,3 and 6 months after operation respectively were(7.11±5.26)scores,(3.82±0.68)scores,(1.94±0.88)scores,(1.36± 0.52)scores,and ODI were(41.38±10.23)scores,(25.13±14.22)scores,(20.61±5.82)scores,(14.55±5.27)scores.The scores of VAS and ODI after operation were lower than those before operation(P<0.05),but there was no significant difference between the two groups(P<0.05).Conclusion Modified suspension reduction method combined with PVP surgery for osteo-porotic thoracolumbar compression fractures has achieved good clinical results,which can effectively relieve lumbar back pain,restore vertebral height,correct kyphosis,improve lumbar function and patients'quality of life.
4.Effect of different blood pressure stratification on renal function in diabetic population
Yong-Gang CHEN ; Shou-Ling WU ; Jin-Feng ZHANG ; Shuo-Hua CHEN ; Li-Wen WANG ; Kai YANG ; Hai-Liang XIONG ; Ming GAO ; Chun-Yu JIANG ; Ye-Qiang LIU ; Yan-Min ZHANG
Medical Journal of Chinese People's Liberation Army 2024;49(6):663-669
Objective To investigate the effect of varying blood pressure stratification on renal function in the diabetic population.Methods A prospective cohort study was conducted,enrolling 9 489 diabetic patients from a total of 101 510 Kailuan Group employees who underwent health examinations between July 2006 and October 2007.The follow-up period was(8.6±4.0)years.Participants were categorized into four groups based on their baseline blood pressure levels:normal blood pressure(systolic blood pressure<120 mmHg and diastolic blood pressure<80 mmHg),elevated blood pressure(systolic blood pressure 120-130 mmHg and diastolic blood pressure<80 mmHg),stage 1 hypertension(systolic blood pressure 130-140 mmHg and/or diastolic blood pressure 80-90 mmHg),and stage 2 hypertension(systolic blood pressure≥140 mmHg and/or diastolic blood pressure≥90 mmHg).The incidence density of chronic kidney disease(CKD)was compared among these groups.A multivariate Cox proportional hazards regression model was employed to assess the effects of different blood pressure levels on renal function in diabetic patients,with the stability of the results confirmed using a multivariate time-dependent Cox proportional hazards model.Sensitivity analysis was conducted after excluding cases of cardiovascular disease(CVD)during follow-up,and cases using antihypertensive and antidiabetic medications at baseline.Results(1)At baseline,stage 1 hypertension patients demonstrated statistically significant higher differences with age and body mass index(BMI)compared to normal blood pressure group(P<0.05).(2)By the end of the follow-up,2 294 cases of CKD were identified,including 1 117 cases of estimated glomerular filtration rate(eGFR)decline and 1 575 cases of urinary protein.The incidences density of CKD,eGFR decline and urinary protein for stage 1 hypertension group were 39.4,16.3 and 25.5 per thousand person-years,respectively,all of which were statistically significant different from normal blood pressure group(log-rank test,P<0.01).(3)Multivariate Cox regression analysis revealed that,compared to the normal blood pressure group,stage 1 hypertension was associated with a 29%increased risk of CKD(HR=1.29,95%CI 1.09-1.52)and a 40%increased risk of eGFR decline(HR=1.40,95%CI 1.08-1.80)in diabetic individuals.Conclusion Stage 1 hypertension significantly increases the risk of CKD and eGFR decline in diabetic individuals,with a particularly notable effect on the risk of eGFR decline.
5.Ultra-fast track anesthesia management for transcatheter mitral valve edge-to-edge repair
Zhi-Yao ZOU ; Da ZHU ; Yi-Ming CHEN ; Shou-Zheng WANG ; Jian-Bin GAO ; Jing DONG ; Xiang-Bin PAN ; Ke YANG
Chinese Journal of Interventional Cardiology 2024;32(5):250-256
Objective To retrospectively analyze the ultra-fast track anesthesia(UFTA)methods and perioperative anesthesia management experiences of transcatheter mitral valve edge-to-edge repair(TEER)in the treatment of functional mitral regurgitant.Methods In this retrospective study,patients underwent the TEER procedure and received UFTA in Fuwai Yunnan Hospital,from May 2022 to September 2022 for heart failure combined with moderate to severe or severe functional mitral regurgitant were included.Baseline,preoperative complications,cardial function and anesthesia classification,amino-terminal probrain natriuretic peptide(NT-proBNP),ultrasound examination results,surgery time,extubation time,intraoperative anesthetic and vasoactive drug,complications related to TEER and UFTA,perioperative,and postoperative 30-day and one-year follow-up data were collected.All perioperative clinical data were recorded and analyzed.Results A total of 30 patients were enrolled,11 patients(36.7%)were female,mean age was(63.6±6.1)years,NYHA classification IV 14 patients(46.7%),left ventricular ejection fraction(LVEF)(36.0±8.1)%,the end-diastolic volume of the left ventricle(66.0±8.2)mm,mitral regurgitation 4+14 patients(56.7%),3+17 patients(43.3%),NT-proBNP(1 934.1±1 973.5)pg/ml,1 patient(3.3%)used high-dose vasoactive drugs during surgery.All patients did not experience nausea,vomiting,delirium,respiratory depression,perioperative transesophageal echocardiography-related gastrointestinal bleeding,pericardial effusion,cerebrovascular accidents,emergency surgery or secondary intervention,or other serious adverse events within 24 hours after surgery.No 30-day all-cause death occurred;the mean postoperative hospital stay was(7.4±2.8)days.All patients completed one-year follow-up,LVEF(37.6±11.1)%,the end-diastolic volume of the left ventricle(63.2±8.6)mm,mitral regurgitation 2+7 patients(23.3%),1+23 patients(76.7%),NT-proBNP(1 949.2±2 576.6)pg/ml.Conclusions Ultra-fast track anesthesia can be safely applied to TEER in treating functional mitral regurgitant patients.
6.Interpretation of report on cardiovascular health and diseases in China 2023
Ming-Bo LIU ; Xin-Ye HE ; Xiao-Hong YANG ; Zeng-Wu WANG ; Sheng-Shou HU
Chinese Journal of Interventional Cardiology 2024;32(10):541-550
Due to the prominent unhealthy lifestyle of residents,accelerated population aging,and urbanization processes in our country,the impact of cardiovascular disease(CVD)risk factors on public health is becoming increasingly significant.The prevalence of cardiovascular disease(CVD)in China is still on the rise.It is estimated that there are 330 million people with CVD,including 13 million cases of stroke,11.39 million cases of coronary heart disease,8.9 million cases of heart failure,5 million cases of pulmonary heart disease,4.87 million atrial fibrillation,2.5 million cases of rheumatic heart disease,2 million cases of congenital heart disease,45.3 million cases of peripheral arterial disease,and 245 million cases of hypertension.The economic burden of CVD on residents and society is increasingly heavy,making it a significant public health issue.The turning point for the prevention and control of CVD has not yet arrived,and it is urgent to strengthen government-led efforts in CVD prevention and control.
7.Epidemiological and Clinical Characteristics of Imported Malaria in Wuhan,China,2012-2019
Shu-Kun YU ; Shou-Nan ZHANG ; Li ZHANG ; Yu-Xin WANG ; Ya-Xin TAN ; Sheng WEI ; Zi-Wei SHI ; Kai WU ; Zhi-Yang TAO
Chinese Journal of Zoonoses 2024;40(6):583-589
Although indigenous malaria has been eliminated in Wuhan since 2013,imported malaria remains a potential threat as an infectious source of local malaria transmission.The epidemiological and clinical characteristics of imported malaria are particularly important in areas where local malaria has been eliminated.This study was aimed at analyzing the epidemiological and clinical characteristics of imported malaria in Wuhan from 2012 to 2019,to provide a basis for further improving the preven-tion and control of imported malaria.Patients in Wuhan diagnosed with imported malaria from January 1,2012,to December 31,2019,were included in this study.A case-control study was con-ducted to analyze the features of patients with severe malaria.Uni-variate and multivariate logistic regression was used to identify risk factors for prolonged hospital length of stay(LOS).Among 229 imported malaria cases,212(92.6%)were in Chinese citizens,and most cases were in men(96.5%).The gender ratio is 28:1,and the age of cases is mainly concertrated between 18 and 50 years old(89.1%).More than 80%of patients were mi-grant workers,and most cases were infections from African countries(92.6%).Plasmodium falciparum(80.8%)was the dominant species.Fifty-three severe malaria cases were identified during the study period.Compared with uncomplicated cases,severe cases tended to occur in patients with no history of malaria(P=0.008),patients infected with Plasmodium falciparum(P=0.009),and patients who were initially misdiagnosed(P<0.001).The median LOS was 6 days,and the species of infec-tion(Plasmodium falciparum),the use of antimalarial drugs(group B),antipyretic time(longer than 3 days),and the turn-around time of blood smear microscopy(longer than 3 days)were significantly associated with longer LOS(all P<0.05).Al-though malaria has been eradicated in Wuhan for many years,imported cases continue to pose a threat.Efforts should be made to strengthen malaria knowledge education for outbound personnel.Additionally,medical institutions must enhance diagnosis and treatment capabilities for malaria,and adhere to standardized treatment processes,and the development of drug resistance and occurrence of severe malaria must be prevented.
8.Quality Assessment of Ginger and Its Processed Products Based on Fingerprints and Chemometrics
Xiujuan YANG ; Jianqiao HE ; Jingjing GUO ; Jiajia WANG ; Pengxian NIU ; Zhijun YANG ; Yuefeng LI ; Shou LI
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(10):1593-1599
Objective To establish the fingerprint map and method of multi-component content determination of ginger and its processed products,and to evaluate their quality. Methods High performance liquid chromatography (HPLC) was used to establish the fingerprint of ginger and its processed products (dried ginger,baked ginger,ginger charcoal) and the method for the simultaneous determination of content of five components. The data were analyzed by similarity evaluation and chemical pattern recognition. Results The fingerprint of ginger and its processed products was established. The similarity was ranged from 0.931 to 0.996. A total of 15 common peaks were confirmed. Five components (6-ginger phenol,8-ginger phenol,10-ginger phenol,6-ginger enol,zingiberone) were identified when compared with the standard. The content of 6-ginger phenol,8-ginger phenol and 10-ginger phenol in ginger and its processed products(dried ginger,baked ginger,ginger charcoal),which were determined by HPLC,met the standard of Chinese Pharmacopoeia(2020 edition). The content of 6-ginger enol and zingiberone in fresh ginger was very low,but their content increased significantly after processing into dried ginger and baked ginger. Ginger and its processed products can be divided into different category in cluster analysis. Five components with VIP greater than one were selected by orthogonal partial least squares discriminant analysis. Conclusion The HPLC fingerprint and assay method established in this study are specific,simple and feasible,stable and reliable. With the help of chemical pattern recognition method,it can provide reference for the quality evaluation of ginger and its processed products.
9.Long-term outcome of EVAHEART I implantable ventricular assist device for the treatment of end stage heart failure: clinical 3-year follow-up results of 15 cases.
Hai Bo CHEN ; Xian Qiang WANG ; Juan DU ; Jia SHI ; Bing Yang JI ; Li SHI ; Yi Sheng SHI ; Xing Tong ZHOU ; Xiao Han YANG ; Sheng Shou HU
Chinese Journal of Cardiology 2023;51(4):393-399
Objective: To evaluate the long-term efficacy and safety of the implantable ventricular assist system EVAHEART I in clinical use. Methods: Fifteen consecutive patients with end-stage heart failure who received left ventricular assist device therapy in Fuwai Hospital from January 2018 to December 2021 were enrolled in this study, their clinical data were retrospectively analyzed. Cardiac function, liver and kidney function, New York Heart Association (NYHA) classification, 6-minute walk distance and quality of life were evaluated before implantation and at 1, 6, 12, 24 and 36 months after device implantation. Drive cable infection, hemolysis, cerebrovascular events, mechanical failure, abnormally high-power consumption and abnormal pump flow were recorded during follow up. Results: All 15 patients were male, mean average age was (43.0±7.5) years, including 11 cases of dilated cardiomyopathy, 2 cases of ischemic cardiomyopathy, and 2 cases of valvular heart disease. All patients were hemodynamically stable on more than one intravenous vasoactive drugs, and 3 patients were supported by preoperative intra aortic balloon pump (IABP). Compared with before device implantation, left ventricular end-diastolic dimension (LVEDD) was significantly decreased ((80.93±6.69) mm vs. (63.73±6.31) mm, P<0.05), brain natriuretic peptide (BNP), total bilirubin and creatinine were also significantly decreased ((3 544.85±1 723.77) ng/L vs. (770.80±406.39) ng/L; (21.28±10.51) μmol/L vs. (17.39±7.68) μmol/L; (95.82±34.88) μmol/L vs. (77.32±43.81) μmol/L; P<0.05) at 1 week after device implantation. All patients in this group were in NYHA class Ⅳ before implantation, and 9 patients could recover to NYHA class Ⅲ, 3 to class Ⅱ, and 3 to class Ⅰ at 1 month after operation. All patients recovered to class Ⅰ-Ⅱ at 6 months after operation. The 6-minute walk distance, total quality of life and visual analogue scale were significantly increased and improved at 1 month after implantation compared with those before operation (P<0.05). All patients were implanted with EVAHEART I at speeds between 1 700-1 950 rpm, flow rates between 3.2-4.5 L/min, power consumption of 3-9 W. The 1-year, 2-year, and 3-year survival rates were 100%, 87%, and 80%, respectively. Three patients died of multiple organ failure at 412, 610, and 872 d after surgery, respectively. During long-term device carrying, 3 patients developed drive cable infection on 170, 220, and 475 d after surgery, respectively, and were cured by dressing change. One patient underwent heart transplantation at 155 d after surgery due to bacteremia. Three patients developed transient ischemic attack and 1 patient developed hemorrhagic stroke events, all cured without sequelae. Conclusion: EVAHEART I implantable left heart assist system can effectively treat critically ill patients with end-stage heart failure, can be carried for long-term life and significantly improve the survival rate, with clear clinical efficacy.
Humans
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Male
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Adult
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Middle Aged
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Female
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Heart Failure/complications*
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Follow-Up Studies
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Retrospective Studies
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Heart-Assist Devices
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Quality of Life
10.HbA1c comparison and diagnostic efficacy analysis of multi center different glycosylated hemoglobin detection systems.
Ping LI ; Ying WU ; Yan XIE ; Feng CHEN ; Shao qiang CHEN ; Yun Hao LI ; Qing Qing LU ; Jing LI ; Yong Wei LI ; Dong Xu PEI ; Ya Jun CHEN ; Hui CHEN ; Yan LI ; Wei WANG ; Hai WANG ; He Tao YU ; Zhu BA ; De CHENG ; Le Ping NING ; Chang Liang LUO ; Xiao Song QIN ; Jin ZHANG ; Ning WU ; Hui Jun XIE ; Jina Hua PAN ; Jian SHUI ; Jian WANG ; Jun Ping YANG ; Xing Hui LIU ; Feng Xia XU ; Lei YANG ; Li Yi HU ; Qun ZHANG ; Biao LI ; Qing Lin LIU ; Man ZHANG ; Shou Jun SHEN ; Min Min JIANG ; Yong WU ; Jin Wei HU ; Shuang Quan LIU ; Da Yong GU ; Xiao Bing XIE
Chinese Journal of Preventive Medicine 2023;57(7):1047-1058
Objective: Compare and analyze the results of the domestic Lanyi AH600 glycated hemoglobin analyzer and other different detection systems to understand the comparability of the detection results of different detectors, and establish the best cut point of Lanyi AH600 determination of haemoglobin A1c (HbA1c) in the diagnosis of diabetes. Methods: Multi center cohort study was adopted. The clinical laboratory departments of 18 medical institutions independently collected test samples from their respective hospitals from March to April 2022, and independently completed comparative analysis of the evaluated instrument (Lanyi AH600) and the reference instrument HbA1c. The reference instruments include four different brands of glycosylated hemoglobin meters, including Arkray, Bio-Rad, DOSOH, and Huizhong. Scatter plot was used to calculate the correlation between the results of different detection systems, and the regression equation was calculated. The consistency analysis between the results of different detection systems was evaluated by Bland Altman method. Consistency judgment principles: (1) When the 95% limits of agreement (95% LoA) of the measurement difference was within 0.4% HbA1c and the measurement score was≥80 points, the comparison consistency was good; (2) When the measurement difference of 95% LoA exceeded 0.4% HbA1c, and the measurement score was≥80 points, the comparison consistency was relatively good; (3) The measurement score was less than 80 points, the comparison consistency was poor. The difference between the results of different detection systems was tested by paired sample T test or Wilcoxon paired sign rank sum test; The best cut-off point of diabetes was analyzed by receiver operating characteristic curve (ROC). Results: The correlation coefficient R2 of results between Lanyi AH600 and the reference instrument in 16 hospitals is≥0.99; The Bland Altman consistency analysis showed that the difference of 95% LoA in Nanjing Maternity and Child Health Care Hospital in Jiangsu Province (reference instrument: Arkray HA8180) was -0.486%-0.325%, and the measurement score was 94.6 points (473/500); The difference of 95% LoA in the Tibetan Traditional Medical Hospital of TAR (reference instrument: Bio-Rad Variant II) was -0.727%-0.612%, and the measurement score was 89.8 points; The difference of 95% LoA in the People's Hospital of Chongqing Liang Jiang New Area (reference instrument: Huizhong MQ-2000PT) was -0.231%-0.461%, and the measurement score was 96.6 points; The difference of 95% LoA in the Taihe Hospital of traditional Chinese Medicine in Anhui Province (reference instrument: Huizhong MQ-2000PT) was -0.469%-0.479%, and the measurement score was 91.9 points. The other 14 hospitals, Lanyi AH600, were compared with 4 reference instrument brands, the difference of 95% LoA was less than 0.4% HbA1c, and the scores were all greater than 95 points. The results of paired sample T test or Wilcoxon paired sign rank sum test showed that there was no statistically significant difference between Lanyi AH600 and the reference instrument Arkray HA8180 (Z=1.665,P=0.096), with no statistical difference. The mean difference between the measured values of the two instruments was 0.004%. The comparison data of Lanyi AH600 and the reference instrument of all other institutions had significant differences (all P<0.001), however, it was necessary to consider whether it was within the clinical acceptable range in combination with the results of the Bland-Altman consistency analysis. The ROC curve of HbA1c detected by Lanyi AH600 in 985 patients with diabetes and 3 423 patients with non-diabetes was analyzed, the area under curve (AUC) was 0.877, the standard error was 0.007, and the 95% confidence interval 95%CI was (0.864, 0.891), which was statistically significant (P<0.001). The maximum value of Youden index was 0.634, and the corresponding HbA1c cut point was 6.235%. The sensitivity and specificity of diabetes diagnosis were 76.2% and 87.2%, respectively. Conclusion: Among the hospitals and instruments currently included in this study, among these four hospitals included Nanjing Maternity and Child Health Care Hospital in Jiangsu Province (reference instrument: Arkray HA8180), Tibetan Traditional Medical Hospital of TAR (reference instrument: Bio-Rad Variant Ⅱ), the People's Hospital of Chongqing Liang Jiang New Area (reference instrument: Huizhong MQ-2000PT), and the Taihe Hospital of traditional Chinese Medicine in Anhui Province (reference instrument: Huizhong MQ-2000PT), the comparison between Lanyi AH600 and the reference instruments showed relatively good consistency, while the other 14 hospitals involved four different brands of reference instruments: Arkray, Bio-Rad, DOSOH, and Huizhong, Lanyi AH600 had good consistency with its comparison. The best cut point of the domestic Lanyi AH600 for detecting HbA1c in the diagnosis of diabetes is 6.235%.
Pregnancy
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Child
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Humans
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Female
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Glycated Hemoglobin
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Cohort Studies
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Diabetes Mellitus/diagnosis*
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Sensitivity and Specificity
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ROC Curve

Result Analysis
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