Factors affecting donation-associated adverse reactions among volunteer blood donors / 预防医学

Objective @#To identify the factors affecting donation-associated adverse reactions among volunteer blood donors, so as to provide the evidence for improving the quality of blood donation services.@*Methods @#The volunteer blood donors in Quzhou Blood Center in 2019 were recruited. The Self-rating Anxiety Scale ( SAS ), Social Support Rating Scale ( SSRS ) and Pittsburgh Sleep Quality Index ( PSQI ) scores were measured prior to blood donation, and the presence of donation-associated adverse reactions was observed in the field of blood donation and within one week through short-message-service follow-up. The factors affecting donation-associated adverse reactions were identified using multivariable logistic regression analysis.@*Results @#A total of 8 240 volunteer blood donors were enrolled, and adverse reactions occurred in 236 subjects, with an incidence rate of 2.86%. The SSRS, PSQI and SAS scores were 37.68±7.14, 5.97±1.25 and 52.82±3.25 among the donors with adverse reactions, respectively. Multivariable logistic regression analysis identified the educational level ( high school, OR=0.508, 95%CI: 0.289-0.891; diploma and above, OR=0.306, 95%CI: 0.253-0.734 ), SSRS score ( OR=0.399, 95%CI: 0.175-0.913 ), PSQI score ( OR=1.962, 95%CI: 1.116-3.450 ) and SAS score ( OR=2.013, 95%CI: 1.279-3.903 ) as factors affecting donation-associated adverse reactions.@*Conclusion @#The development of donation-associated adverse reactions correlates with educational level, social support, sleep quality and anxiety among volunteer blood donors.

Epidemiology characteristics analysis on HIV infection of volunteer blood donors in Shaoxing area / 中华实验和临床病毒学杂志

Objective@#To analysis HIV infection status among volunteer blood donors in Shaoxing area from 2001 to 2014, and to provide evidence for recruiting strategy of volunteer blood donors.@*Methods@#A statistical analysis was conducted on the confirmed HIV-positive cases of volunteer blood donors from 2001 to 2014 in Shaoxing area.@*Results@#36 volunteer blood donors were confirmed anti-HIV positive, and the positive rate was 0.09‰. Only 1 volunteer blood donor was confirmed anti-HIV positive before 2006, and the HIV-positive rate rose and the changes in volatility after 2006. The HIV-positive rate in Zhuji was highest compared to other blood center of Shaoxing. The HIV-positive rate in male and female were 4.14∶1, men who had sex with men remain at great risk for HIV infection.@*Conclusions@#Anti-HIV positive rate was lower among volunteer blood donors in Shaoxing area. Since 2006 years, anti-HIV positive rate increased. The anti-HIV positive rate were different in the different blood center in Shaoxing area, HIV antibody confirmatory positive is more common in young males volunteer blood donors.

Analysis on the results of domestic HCC RNA genotype diagnostic kit / 国际检验医学杂志

Objective To evaluated the HCV genotyping results which obtained by genotype diagnostic kit in Shenzhen area. Methods 158 samples which ELISA test of anti-HCV were positive were collected from voluntary blood donors from 2014 to 2015,and were tested by PCR fluorescence probe method for viral load.The samples which viral load were greater than 1.0 ×103 IU/mL were then tested by HCV RNA genotype diagnostic kit.To analysis the proportion of different genotypes and the correla-tion between genotypes with vrial load.Results 54 HCV RNA reactive sample were quantity by PCR fluorescence probe method from 158 anti-HCV positive samples.The genotyping data for 45 cases which vrial load greater than 1.0×103 IU/mL were obtained by HCV RNA genotype diagnostic kit.The frequencies HCV genotype 1b,2,3 and 6 were 57.78%(26/45),6.67%(3/45),8.89%(4/45)and 26.67%(12/45),respectively.One-way ANOVA analysis showed that significant difference in viral loads was found be-tween different HCV genotype 1b and 2(F =2.861,P <0.05),and there was a significant difference in viral loads and anti-HCV S/CO by sex(P <0.05).Fisher′s exact test showed the significance difference between age and genotypes(P <0.05 ).Conclusion HCV 1b and 6 were the most predominant genotypes due to the higher viral load than the other subtypes among volunteer blood do-nors in Shenzhen,while the proportion of HCV 2,3 declined.

Character of HCV infected blood donors in Maoming City / 国际检验医学杂志

Objective To know the situation of the hepatitis C virus(HCV)infection in blood donors of Maoming City,and pro-vide the basic data for recruiting volunteer blood donors and preventing of HCV infection.Methods Blood samples were collected in Maoming blood center,and were detected by using HCV antibodies of different manufacturers and operated by different people.Du-plicate test was used to reexamine the specimens which were reactive in the initial test.Statistical analysis was performed.Results HCV prevalence of blood donors from Maoming was 0.74%.The prevalence of female was slightly higher than the male,but the difference was not statistically significant(P >0.05).The HCV prevalence of civil servant and medical personnel was relatively low-er.HCV prevalence of repeat blood donors was obviously lower than blood donors for the first time(P <0.05).Conclusion HCV prevalence of blood donors in Maoming City was in a relative low level.The risk of HCV infection in people who is younger than 35 years old and at the same time qualified to donate blood is quite low.Establish a stable volunteer blood donor group is beneficial to blood safety.It's necessary to strength the propaganda and prevention of HCV knowledge to population besides civil servant and medical personnel,which would be helpful for the control of HCV infection.

Significance of anti-HBc screening of blood donors & its association with occult hepatitis B virus infection: Implications for blood transfusion.

Background & objective: Expansions of blood donor screening and improved laboratory detection of viral markers have remarkably reduced the risk for infection with transfusion-transmitted viruses. This study was aimed to evaluate the presence of anti-HBc and to determine the presence or absence of HBV DNA in the serum samples from HBsAg negative, anti-HBc positive blood donors in a tertiary care hospital blood bank from Delhi. Methods: A total of 2175 HBsAg negative, first time volunteer blood donors were included in the study from blood bank, Lok Nayak Hospital, New Delhi. The blood specimens from all these subjects were evaluated for anti-HBV-core antigen (anti-HBc) serology, anti-HBV-surface antigen (anti-HBs) titres and HBeAg. The presence of HBV DNA was evaluated by testing, through polymerase chain reaction (PCR) techniques. Results: Of the 2175 HBsAg negative voluntary blood donors, 413 (19.8%) were tested to be positive for anti-HBc alone. Of these, 153 (group-I) were anti-HBs negative whereas group-II comprises a total of 260 anti-HBs positive cases i.e. 89 out of 413 had anti-HBs titres of 10-99 IU/l and the remaining 171 had anti-HBs titres of 100-500 IU/l. HBV DNA was detected in 7.5 per cent anti-HBc positive samples irrespective of anti-HBs status. Interpretation & conclusions: Our results showed that 18.9 per cent of our donor population was anti-HBc reactive, and hence inclusion of anti-HBc testing will lead to a high discard rate. The presence of HBV DNA in fairly high percentage of anti-HBc positive samples highlighted the need for a stringent and better screening system to prevent occult HBV infection.

Analysis of Reasons on Insufficient Blood Collection from Volunteer Donors / 中国医师杂志

Objective To investigate the factors affecting insufficient blood collection from volunteer donors. Methods Volunteer blood donors in our hospital were divided into two groups: group A (volunteer donors from January 2001 to December 2003) and group B (volunteer donors from January to June in 2004) after improving the environment of blood collection and service quality. The cases and main affecting factors of insufficient blood collection were analysed. Results The percentage of cases with insufficient blood collection in group A and group B was 0.95% and 0.53%, respectively, which had a significant difference between the two groups (P