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Objective:To investigate the diagnostic value of myocardial blood flow quantitative imaging with cadmium zinc telluride (CZT) SPECT in patients with high-risk coronary artery disease (CAD).Methods:A total of 148 patients (82 males, 66 females, age: (63.8±8.2) years) who successfully completed CZT SPECT dynamic acquisition and routine SPECT myocardial perfusion imaging (MPI) in TEDA International Cardiovascular Hospital from November 2018 to October 2020 were analyzed retrospectively. According to the results of coronary angiography (CAG), patients were divided into two groups: high-risk CAD group and low-to-medium-risk CAD group. At the case level, quantitative parameters (stress myocardial blood flow (sMBF), rest myocardial blood flow (rMBF) and myocardial flow reserve (MFR)), semi-quantitative parameters (summed stress score (SSS), summed rest score (SRS), summed difference score (SDS) and transient ischemic dilation (TID)) and left ventricular function parameters of two groups were compared. Diagnostic accuracy was evaluated by ROC curve analysis. At the vascular level, the correlation between the degree of coronary artery stenosis and some parameters was analyzed. Mann-Whitney U test, logistic regression, Spearman rank correlation analysis and DeLong test were used for statistical analysis. Results:Case level analysis showed that MFR and sMBF in high-risk CAD group were significantly lower than those in low-to-medium-risk CAD group (1.36(0.87, 1.64) vs 2.74(2.30, 3.33), 1.06(0.69, 1.48) vs 2.50(1.73, 2.95) ml·g -1·min -1; U values: 628.0 and 853.5, both P<0.001). MFR and SDS were independent predictors of high-risk CAD patients (odds ratio ( OR)=0.251(95% CI: 0.136-0.464), P<0.001; OR=1.188(95% CI: 1.026-1.375), P=0.021), and MFR was more capable of predicting high-risk CAD. MFR and sMBF had the highest accuracy in diagnosing high-risk CAD (AUCs: 0.885 and 0.844). Differences of AUCs between MFR and other parameters were statistically significant ( z values: 1.99-6.77, all P<0.05), and the best diagnostic cut-off value was ≤1.83 (sensitivity: 85.90%; specificity: 85.71%). Vascular level analysis showed that MFR and sMBF( R2 values: 0.39 and 0.35, both P<0.001) were negatively correlated with the degree of coronary stenosis, while SSS, SRS and SDS ( R2 values: 0.22, 0.12 and 0.14, all P<0.001) were positively correlated with the degree of coronary stenosis. Conclusion:Compared with conventional SPECT MPI, CZT SPECT myocardial blood flow quantitative imaging has better diagnostic efficacy and clinical value in patients with high-risk CAD.
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Objective@#To explore the relationship between parent child relationship and rebelliousness of junior middle school students in boarding schools and to provide a scientific basis for preventing the occurrence of youth rebellion.@*Methods@#A cluster sampling method was used to investigate parent child separation, family intimacy, and rebellion among 1 790 junior high school students in one boarding middle school in Lujiang County, Hefei City, Anhui Province in January 2020, and the influence of parent child relationship on students rebelliousness was analyzed by Chi square test and binary Logistic regression.@*Results@#The detection rate of rebelliousness among participants was 21.45%(384/ 1 790 ). Junior middle school students who were in senior grade (second and third grades), reported higher household economic status and no communication with parents during the past month were more likely to have rebelliousness( OR=1.83, 1.89, 1.80, 1.77 , P <0.05); Junior middle school students with higher parental warmth and intimacy were less likely to have rebelliousness( OR=0.52, 0.71, P <0.05); Gender, length of boarding, maternal education, frequency of meeting parents during boarding, and childhood experience of separation with parents showed no statistical significance on rebelliousness( P >0.05).@*Conclusion@#The detection rate of rebellious psychology among junior high school students in boarding schools is high, and good parent child relationship is the protective factor of rebellious psychology. Parents should pay attention to contact with their boarding children and strengthen communication to reduce rebelliousness among them.
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Objective@#To explore the relationship between parent child relationship and rebelliousness of junior middle school students in boarding schools and to provide a scientific basis for preventing the occurrence of youth rebellion.@*Methods@#A cluster sampling method was used to investigate parent child separation, family intimacy, and rebellion among 1 790 junior high school students in one boarding middle school in Lujiang County, Hefei City, Anhui Province in January 2020, and the influence of parent child relationship on students rebelliousness was analyzed by Chi square test and binary Logistic regression.@*Results@#The detection rate of rebelliousness among participants was 21.45%(384/ 1 790 ). Junior middle school students who were in senior grade (second and third grades), reported higher household economic status and no communication with parents during the past month were more likely to have rebelliousness( OR=1.83, 1.89, 1.80, 1.77 , P <0.05); Junior middle school students with higher parental warmth and intimacy were less likely to have rebelliousness( OR=0.52, 0.71, P <0.05); Gender, length of boarding, maternal education, frequency of meeting parents during boarding, and childhood experience of separation with parents showed no statistical significance on rebelliousness( P >0.05).@*Conclusion@#The detection rate of rebellious psychology among junior high school students in boarding schools is high, and good parent child relationship is the protective factor of rebellious psychology. Parents should pay attention to contact with their boarding children and strengthen communication to reduce rebelliousness among them.
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Objective To investigate the current status of HIV infection and the related factors in HIV antibody positive clients of female sex workers (FSWs) recently reported in Shaanxi province.Methods The HIV/AIDS cases newly diagnosed in males living in Shaanxi from January 1th of 2013 to June 30th of 2014 were selected and those infected through "commercial heterosexual behavior" were identified.The information about their demographic characteristics,previous unprotected heterosexual sex and the sample sources were collected,and serum or plasma samples were collected from them and tested with BED-CEIA.The proportion of recent HIV infections and associated factors were investigated.Results The proportion of recent HIV infection and HIV-antibody detection rate in 212 HIV antibody positive male clients of FSWs were 25.5％ and 6.6％ respectively.The cases who had the educational level of junior middle school or high middle school were wore likely to have long term HIV infections than those with lower educational level (aOR=0.28,95％ CI:0.08-0.93).Compared with patients identified by hospitals or sexually transmitted diseases clinics,recent HIV infections were more likely to be found through preoperative test or blood transfusion test (aOR=3.14,95％ CI:1.06-9.30) and blood donation test (aOR=4.19,95％ CI:1.01-17.42).Compared with the cases who had commercial sex only in Xi'an or other province or both in Xi'an and other province,the cases who had commercial sex in other cities in Shaanxi were more likely to be infected recently (aOR=0.19,95％CI:0.07-0.57).Compared with the cases had temporary heterosexual sex partner,those who had no temporary sex partners were more likely to be infected recently (aOR=9.03,95％CI:3.00-27.18)(P＜0.05).Conclusions The proportion of recent HIV infections among HIV antibody positive clients of FSWs was high and the HIV-antibody detection rate among them was low.The educational level,sample source,geographic area and temporary heterosexual partner were related factors for recent HIV infection.The HIV infection in the clients of FSWs,especially those with lower educational level,was serious in Shaanxi.It is necessary to strengthen behavior intervention and improve HIV defection according to the characteristics of this population
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Objective To investigate the current status of HIV infection and the related factors in HIV antibody positive clients of female sex workers (FSWs) recently reported in Shaanxi province.Methods The HIV/AIDS cases newly diagnosed in males living in Shaanxi from January 1th of 2013 to June 30th of 2014 were selected and those infected through "commercial heterosexual behavior" were identified.The information about their demographic characteristics,previous unprotected heterosexual sex and the sample sources were collected,and serum or plasma samples were collected from them and tested with BED-CEIA.The proportion of recent HIV infections and associated factors were investigated.Results The proportion of recent HIV infection and HIV-antibody detection rate in 212 HIV antibody positive male clients of FSWs were 25.5％ and 6.6％ respectively.The cases who had the educational level of junior middle school or high middle school were wore likely to have long term HIV infections than those with lower educational level (aOR=0.28,95％ CI:0.08-0.93).Compared with patients identified by hospitals or sexually transmitted diseases clinics,recent HIV infections were more likely to be found through preoperative test or blood transfusion test (aOR=3.14,95％ CI:1.06-9.30) and blood donation test (aOR=4.19,95％ CI:1.01-17.42).Compared with the cases who had commercial sex only in Xi'an or other province or both in Xi'an and other province,the cases who had commercial sex in other cities in Shaanxi were more likely to be infected recently (aOR=0.19,95％CI:0.07-0.57).Compared with the cases had temporary heterosexual sex partner,those who had no temporary sex partners were more likely to be infected recently (aOR=9.03,95％CI:3.00-27.18)(P＜0.05).Conclusions The proportion of recent HIV infections among HIV antibody positive clients of FSWs was high and the HIV-antibody detection rate among them was low.The educational level,sample source,geographic area and temporary heterosexual partner were related factors for recent HIV infection.The HIV infection in the clients of FSWs,especially those with lower educational level,was serious in Shaanxi.It is necessary to strengthen behavior intervention and improve HIV defection according to the characteristics of this population
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Objective To learn 2009~2014 Shaanxi Province sentinel surveillance six classes of HIV infection focus groups, and estimates of HIV-1 new infection.Methods Used enzyme-linked immunosorbent assay (ELISA)and Western blot (WB)experiments for the 2009~2014 HIV sentinel surveillance Shaanxi Province Category 6 focus groups conducted a total of 77 778 HIV antibody screening and confirmatory testing estimates of HIV-1 new infection.Results 2009~2014 men who had sex with men and people with HIV infection rate were 3.75%,8.77%,3.50%,5.00%,6.20% and 5.75%,and a slow upward trend;HIV-1 new infection were 5.04%,8.96%,5.01%,5.95%,4.68% and 6.39%,the overall downward trend. Young students,drug addicts,sex workers,pregnant women,and male STD clinic attenders five people with HIV infection and HIV-1 new infection were emerging to remain low.But male STD clinic attenders of HIV infection and HIV-1 new in-fection was emerging slowly rising trend.Conclusion Shaanxi MSM HIV infection and HIV-1 new infection were high,but HIV-1 new infection had decreased slowly.Emerging trend should continue to increase the population of the intervention ef-forts.The infection rate in other monitoring population was relatively low but a few people on the rise,the need to take the necessary coping methods.