A Gift of Blood: Opinions and Experience of Voluntary Blood Donors on Repeat Blood Donation

Donating blood is an essential practice that can help save lives. Effective strategies are necessary to attract and keep blood donors to meet the demand for safe blood. To evaluate the experience of voluntary blood donors in Zanzibar, a survey was conducted, and purposive sampling was used to select participants who had donated blood multiple times. The study involved interviewing 15 repeat blood donors, and the data collected was analyzed thematically. Two main themes emerged from the analysis: motivators and barriers. Despite a few negative effects, most participants had positive experiences with repeat blood donation, and only few experienced physical reactions during or after the process. The study concludesthat blood donors in Zanzibar generally have good experience towards repeat blood donation, although community participation, education, and sensitization are needed to recruit and maintain more donors.

Pre-and post-donation ferritin level of blood donors attending University of Calabar Teaching Hospital, Donor Clinic in Southern Nigeria

While trying to save the patient via blood transfusion, the safety of the blood donor is paramount. This study evaluated the pre-and post-donation ferritin and packed cell volume (PCV) of donors attending University of Calabar Teaching Hospital.Method: The study adopted descriptive longitudinal approach. A total of 18 donors with age range of 18 ­48years were enrolled and followed up for 30 days post-donation. The serum ferritin was analyzed using ELISA method while the PCV was analyzed using the microhematocrit method. Difference between means was performed using repeated measure ANOVA while post hoc was done using Bonferroni adjustment. Prediction of return to baseline values were performed using logistic regression. Alpha value was placed at 0.05 There was a decline in ferritin and packed cell volume from pre-to post-donation. The decline in ferritin was imminent until day 14 when recovery was initiated. Significant difference was observed between the pre-donation ferritin and the rest of the days except day 30. There was also a decline in PCV from pre-donation all through with recovery noticeable after day 7. The PCV of the pre-donation was only comparable to the day 30 post-donation. Approximately 5.6% (n=1) of the subjects was iron deficient pre-donation.Approximately 25% (n=4) of the subject have returned to baseline PCV while 0% of the subjects have returned to baseline ferritin at day 30 post-donation.Conclusion: For the safety of the donor, donation interval should be widened, and iron supplement followed up

Voluntary blood donation among the youth: Time to consider service-improving strategies?

@#Voluntary blood donation is a key strategy in improving availability of, and access to, a life-saving product for populations requiring blood transfusion for a variety of medical conditions.1 In the Philippines, the value of voluntary blood donation is recognized by the state through Republic Act No. 7719, enacted nearly three decades ago.2 Among others, this piece of legislation aims to encourage citizens to donate blood through educational and advocacy activities that will “instill public consciousness of the principle that blood donation is a humanitarian act.” But is this appeal to altruism sufficient? The repeated calls for action by the Department of Health (DOH), through its National Voluntary Blood Services Program, may indicate otherwise. For instance, it was noted that in 2009, about one in four blood units collected were from replacement donation (i.e., blood donation from family and friends in exchange for stored blood used by a patient).3 The low voluntary blood donation rates were further exacerbated by the pandemic situation amidst a constant demand for blood transfusion, hence the DOH taps its regular donors such as uniformed personnel.4 Stakeholders particularly appealed to the youth to donate blood to boost supply.5,6 But how do the youth fare? In the paper by Mappala et al.7 in this issue of the Acta Medica Philippina, the authors reported that among a sample of relatively young, educated, internet-savvy, and urban-dwelling respondents, only about one in three ever donated blood, and of this number, about two-thirds either donated blood only when needed, or just did the practice once. Most of the respondents have a relatively high knowledge and awareness of blood donation, and were motivated to donate blood for altruistic and pro-social purposes. From this data alone, appealing to humanitarian and civic duty, the very heart of the current national policy and program, appears to be not enough to encourage the practice of blood donation, at least in so far as this population segment is concerned. Other results from the same survey, however, point to one other area that stakeholders in the voluntary blood donation program can focus on to increase uptake by the population, and this is with respect to the availability and accessibility of the service to the target population. Participants rated highly the statements pertaining to the geographic proximity of the facility, attitude of staff towards blood donors, and availability of communication lines for addressing queries, as motivators for blood donation. From a management perspective, these align with the value chain strategic service delivery model, which can be considered by stakeholders in designing the voluntary blood donation service and facility.8 More specifically, blood donation services can look into incorporating value-adding service delivery strategies in their design of their offering, considering the experience of the service user before, during, and after the service has been rendered. These strategies are described in detail elsewhere, and I will just attempt to list down some considerations specific to the blood donation service. Pre-service strategies include market analysis (including market segmentation and differentiation, in this case possibly developing different approaches and messages for target donors such as the youth, older adults, etc.), pricing (while voluntary blood donation is free, some facilities are authorized to charge a fee for the processing of the donated blood), location (of the blood donation facilities, and deciding whether these should be fixed post or mobile units), and promotion (among others, how to inform the target donors about the service). Point-of-service considerations, meanwhile, pertain to the totality of the donor experience from the time they arrive, and eventually leave, the blood donation facility, and encompasses all aspects of clinical operations, quality assurance, process innovation, and patient satisfaction. Lastly, after-service strategies will have to include aspects on how to encourage a person who donated blood once to become a regular donor, as well as an advocate and ambassador for blood donation who can encourage and influence family and friends to likewise donate blood in a voluntary manner (i.e., as part of follow-up and follow-on activities). I write this Editorial on the eve of the 29th year since Republic Act No. 7719 was promulgated. Given the evolving characteristics of the target blood donor pool, this may be the opportune time to shift from focusing purely on promotion of the pro-social value of blood donation, and incorporate service-improving strategies in the blood donation system, to bring us closer to the policy vision of mobilizing “all sectors of the community to participate in mechanisms for voluntary and nonprofit collection of blood.”

Frequency of Transfusion transmissible infections in voluntary and family replacement donors at The Alotau Provincial Health Authority Blood Transfusion Service, Papua New Guinea

@#Transfusion Transmissible Infections (TTI) in blood donors continue to be a threat to recipients, therefore, to increase accessibility to infection-free donor blood, voluntary non-remunerated donation has been recommended. This was a retrospective observational study aimed at establishing a data base for transfusion transmissible infections in family replacement and voluntary donors at the Alotau Provincial Health Authority (PHA) Blood Bank Service using donor data recorded from 2015 to 2018. Statistical significance was determined using the chi-square test with p-values of <0.05 considered significant. Ethical clearance was approved by the School of Medicine and Health Sciences Research Ethics Committee. Consent to collect data from the Alotau PHA Blood Transfusion Service and the Blood Bank Laboratory was granted on the 17/06/2019 reference #: RCO1/6/19. A total of 2852 blood donors were analyzed, of which 90% (n=2567) were males and 10% (n=285) were females. Of these, 69% (n=1959) were Family-Replacement-Donors (FRDs) and 31% (n=893) were Voluntary Donors (VDs). Donations by FRDs increased with increasing years from 2015 to 2017 and declined slightly by 1% in 2018. The complete opposite was observed in VDs. TTIs were higher in FRDs than in VDs (20.1% vs 16.8%, p=0.04), in single infections, (18.6% vs 15.2%, p=0.03), infection with HBV (9.9% vs 7.2%, p=0.02), and in those aged over 45 years (2.7% vs 0.1%, p=<0.01). The differences were statistically significant. TTI was significantly higher in male FRDs than VDs (19.1 vs 14.3, p=0.00) and in females, it was significantly higher in VDs than in FRDs (2.5% vs 1.0%, p=0.00). TTIs were significantly high in older male FRDs which seem to indicate that the primary route of transmission in this setting could be mostly sexual. This calls for establishment of effective educational awareness about risk factors in the older population, and promotion of voluntary non-remunerated donations in this setting.

Correlation between voluntary blood donation and autonomous motivation / 预防医学

Objective@#To explore the relationship between voluntary blood donation and autonomous motivation based on self-determination theory, so as to provide insights into optimizing voluntary blood donation recruitment. @*Methods@#Participants meeting the blood donation criteria were selected from blood stations and medical institutions in Hangzhou City, Jiaxing City and Quzhou City, Zhejiang Province. A self-designed questionnaire based on self-determination theory was used to collect basic information, awareness and source of blood donation knowledge, autonomous motivation and controlled motivation. The correction between autonomous motivation and voluntary blood donation was analyzed using a multivariable logistic regression model.@*Results@#A total of 986 participants at ages of 18-55 years were surveyed, including 730 females (74.04%) and 256 males (25.96%). Among them, 705 participants (71.50%) had experience of voluntary blood donation. The mean score for blood donation knowledge was (5.76±1.17) points, and the total motivation score for blood donation was (58.21±8.17) points, with autonomous motivation scoring (40.86±5.46) points and controlled motivation scoring (17.35±3.26) points. Multivariable logistic regression analysis identified gender (female, OR=0.419, 95%CI: 0.273-0.644), occupation (medical profession, OR=4.027, 95%CI: 2.440-6.646), blood donation knowledge (OR=1.307, 95%CI: 1.159-1.475) and autonomous motivation (OR=1.074, 95%CI: 1.033-1.116) as factors affecting voluntary blood donation. @*Conclusions@#Autonomous motivation may promote voluntary blood donation. In blood donation recruitment efforts, it is vital to enhance autonomous motivation and make appropriate use of controlled motivation.

Analysis of ABO and RhD blood group detection results among voluntary blood donors in Huainan of Anhui province / 中国基层医药

Objective:To analyze the distributions of ABO and RhD blood groups by analyzing the basic data of blood group detection among voluntary blood donors in Huainan in 2021, to provide data support for blood recruitment, clinical use of blood, and emergency guarantee of rare groups of blood.Methods:ABO and RhD blood groups of 24 484 voluntary blood donors eligible for blood donation in 2021 were detected using the Metis150-8 automatic blood group analyzer, manual saline method, antihuman globulin method, and manual polybrene test. The blood group results were statistically analyzed.Results:Among 24 484 voluntary blood donors in Huainan in 2021, A blood group accounted for the highest proportion (7 463 cases, 30.48%), followed by O blood group (7 444 cases, 30.40%) and B blood group (7 056 cases, 28.82%), and the last was AB blood group (2 521 cases, 10.30%). A total of 143 cases of RhD-negative blood were detected, and the negative frequency of RhD was 0.58% (143/24 484). Among the RhD-negative blood samples, 43 cases of type A, 41 cases of type B, 46 cases of type O, and 13 cases of type AB were RhD-negative, accounting for 30.07%, 28.67%, 32.17%, and 9.09%, respectively. There was no statistical difference in the detection rate of Rh-negative blood among different ABO blood groups in Huainan ( χ2 = 0.36, P = 0.948). The ABO blood group distribution of voluntary blood donors in Huainan in 2021 was not identical to those of voluntary blood donors in Guangzhou, Yueyang, Xinjiang Bozhou, Zhangzhou, and Liuzhou. The proportion of type A blood donors in Yueyang was higher than those in other regions. The proportions of type B blood donors in Huainan, Xinjiang Bozhou, and Zhangzhou were higher than those in other regions. The proportion of type O blood donors in Liuzhou was higher than those in other regions. The proportions of type AB blood donors in Huainan and Xinjiang Bozhou were higher than those in other regions. Conclusion:The distributions of ABO and RhD blood groups among voluntary blood donors in Huainan region have certain regional characteristics. Central blood banks and medical institutions should reasonably store and supply blood according to the blood collection from voluntary blood donations and the needs of clinical transfusion, to prevent the occurrence of situations such as blood expiration and waste.

Ethical Thinking on Chinese Traditional Culture and Voluntary Blood Donation / 中国医学伦理学

Although voluntary blood donation may be hindered by traditional Chinese culture, Chinese traditional culture does not only have a negative effect on voluntary blood donation. Among them, the concepts of "self-restraint" and "benevolence" can help people devote themselves to voluntary blood donation, but the value pursuit of body integrity in traditional culture is still noteworthy. From the perspective of "sacrificing life for righteousness", the traditional culture’s emphasis on the inviolability of the body is not absolute. Under special circumstances, moderate and slight damage to the body for the public interest is permitted and supported by Confucian ethics. Voluntary blood donation obviously belongs to this special situation, and its legitimacy can be justified by the body ethics advocated by Mencius. "Self-restraint" and "benevolence" are ideological helps to guide people to practice voluntary blood donation.

Voluntary blood donation intention of students in middle vocational school in Jinhua and its influencing factors / 中国输血杂志

【Objective】 To explore the intention of voluntary blood donation in students from a middle vocational school in Jinhua and its influencing factors. 【Methods】 A total of 400 students were enrolled from a middle vocational school in Jinhua by convenience sampling, and a self-designed questionnaire was issued to each student to investigate the cognition, intention and attitude of voluntary blood donation. The influencing factors of voluntary blood donation intention were analyzed by Logistic regression. 【Results】 A total of 394 valid questionnaires(98.50%) were collected. For 394 surveyed students, the average score of cognition of voluntary blood donation was (7.27±2.69) points, and the overall rate of intention to voluntary blood donation was 21.32%. Logistic regression analysis equation consisted of family support, better cognition, feeling happy about blood donation and worrying about blood donation, with risk ratios(OR) as 31.78, 188.69, 26.27 and 0.01, respectively(all P<0.05). 【Conclusion】 Students from a middle vocational school showed poor congnition and intention of voluntary blood donation.Family support for voluntary blood donation, better cognition of voluntary blood donation and happiness for blood donation were positive factors, and the fear of blood donation was a negative factor.It is necessary to strengthen the publicity of blood donation among students in middle vocational school to improve their congnition and intention to voluntary blood donation.

Investigation on whole blood collection in Tianjin after fully lifting COVID-19 prevention and control measures / 中国输血杂志

【Objective】 To investigate the situation of whole blood collection in Tianjin after COVID-19 prevention and control measures were fully lifted. 【Methods】 The relevant data on whole blood collection of voluntary blood donors in Tianjin 15 days before Spring Festival (2023.01.07-2023.01.21, when China has managed COVID-19 with measures against Class B infectious disease instead of Class A infectious diseases) and 15 days before Spring Festival in 2018 (2018.02.01- 2018.02.15) and 2019 (2019.01.21-2019.02.04) before the breakout of COVID-19 were retrospectively collected and compared. 【Results】 The comparison between the above period in 2023, 2018 and 2019 was as follows: the number of blood donors was 6 124 vs 3 940 vs 4 069; blood collection volume (U) was 9 623 vs 7 378 vs 7 808; the proportion of first-time blood donors, local blood donors and group blood donors was 69.17% (4 236/6 124) vs 65.86% (2 595/3 940) vs 62.05% (2 525/4 069), 59.31% (3 632/6 124) vs 23.27% (9170) vs 18.19% (740/4 069) and 43.42% (2 659/6 124) vs 8.05% (317/2 595) vs 0.15% (6/4 069) (all P<0.05). 【Conclusion】 The adjustment of COVID-19 prevention and control policy has a significant impact on voluntary blood donation, and the corresponding adjustment of blood donor recruitment strategy in blood centers should be conducted to increase the whole blood collection.

Implementation of points-based household registration policy for voluntary blood donors in Nanjing / 中国输血杂志

【Objective】 To analyze the implementation effect of points-based household registration policy for blood donors in Nanjing, so as to provide reference for other provinces and cities to develop incentive policies for blood donation. 【Methods】 The basic demographic profile, registration situation and deferral reasons of blood donors who applied for points-based household registration from 2017 to 2021 were analyzed by Excel. 【Results】 1) A total of 388 blood donors applied for points-based household registration for blood donation from 2017 to 2021, accounting for 0.042% of the total blood donors in Nanjing (388/923 160), and 357 applications were approved, accounting for 0.039% (357/923 160). 2) The proportion of male applicants was higher than that of female applicants (55.15% vs 44.85%). Applicants aged 26~35 accounted for the largest, followed by applicants aged 36~45, and applicants aged 18~25 accounted for the least. The proportion of applicants in Jiangsu province(23.27%) was higher than that of applicants from other provinces. The top three occupations were employees, workers and jobless. In terms of education level, applicants with junior high school education or below accounted for the largest, followed by high school and secondary school (35.05% vs 29.38% vs 23.20%). The proportion of first-time blood donors was the highest (33.24%). Among the repeated blood donors, blood donors who donated blood 2~3 times were with the highest share (23.93%). Nineteen donors(4.90%) got more than 100 points. 3) A total of 31 blood donors were deferred from 2017 to 2021, accounting for 7.90% of the total applicants. Among them, 23 applicants donated in other cities than Nanjing, 5 applicants failed to provide valid blood donation certificates, and 3 applicants submitted irrelevant material. 【Conclusion】 The implementation of points-based household registration policy for voluntary blood donors in Nanjing helped blood donors who could not reach other points due to low education level and income to become registered permanent residence in Nanjing

Analysis of heart rate variability during blood donation / 中国输血杂志

【Objective】 To observe the regulation of autonomic nerves in blood donors during blood donation by heart rate variability analysis and explore the possible mechanism of donation related vasovagal reaction. 【Methods】 Electrocardiogram (ECG) of 90 blood donors was monitored by Fontaine Ⅰlead during the whole process of blood donation, and the 5-min heart rate variation before, during and after blood donation was analyzed. 【Results】 During the whole process of blood donation, the sympathetic HRV index (LF nu) and the sympathetic and vagal balance ability index (LF/HF) increased, whereas the vagal nerve index (pNN50, RMSSD, HFnu) and heart rate variability index (SDNN, Total power) decreased. For baseline heart rate variability of different blood donors (first-time vs. repeated, male vs. female, 18-24 years old vs. ≥25 years old, <400 mL vs. 400 mL) before blood donation, the pNN50, RMSSD and Total power of 18-24 years old blood donors were higher, but other indicators showed no significant difference. There were differences in HRV indexes of different types of blood donors during blood donation compared with before blood donation. The decrease of pNN50 and HFnu and the increase of LF/HF were larger in experienced blood donors than in first-time blood donors. The decrease of RMSSD was larger in male blood donors than in female blood donors; the change of LF/HF was larger in blood donors aged≥25 years than in blood donors aged 18-24 years; other indicators had no significant difference. 【Conclusion】 Blood donation leads to reflex readjustment of the cardiac autonomic tone: the sympathetic nerve is excited while the vagal nerve is suppressed. The cardiac autonomic nerve function of first-time blood donors, female donors and low-age (18-24 years old) donors to blood donation stress is not fully regulated. Donation related vasovagal reaction may be related to the autonomic nerve regulation function of blood donors.

Demographic difference and influencing factors of motivations between whole blood and plasmapheresis donors: a comparative study / 中国输血杂志

【Objective】 To explore the difference of demographics and influencing factors of motivations between whole blood donors and plasmapheresis donors, so as to provide scientific reference for effective recruitment strategy. 【Methods】 A total of 200 whole blood donors from Guangyuan Blood Center and 200 plasmapheresis donors from Jiange Plasmapheresis Station were selected in August 2021 for on-site questionnaire survey using the method of cross-sectional survey. Statistical analysis was performed by chi-square test, univariate and multivariate logistic regression. 【Results】 There were significant differences in gender, age, occupation, education level and annual family income between whole blood donors and plasmapheresis donors (P<0.05). Males accounted for a large proportion of whole blood donors(124/196, 63.3%), whereas females accounted for a large proportion of plasmapheresis donors(117/198, 59.1%). There was little difference in the number of whole blood donors in different age groups, while the age of plasmapheresis donors was concentrated in 40~59 years old (167/198, 84.3%). In terms of occupation, civil servants (including public institutions) accounted the highest proportion in whole blood donors (41/196, 20.9%), and farmers accounted the highest proportion (152/198, 76.8%) in plasmapheresis donors. The number of whole blood donors increased with the education level, and donors with college/university and above degree accounted the largest proportion (80/196, 40.8%). Plasmapheresis donors with junior middle school education and college/university and above accounted the largest and smallest proportion (49.5% vs 4.5%). The annual family income of whole blood donors ranged from 30 000 to 80 000 yuan accounted the largest proportion (109/196, 55.6%), and the annual family income of plasmapheresis donors less than 30 000 yuan accounted the largest proportion (132/198, 66.7%). 【Conclusion】 There were significant statistical differences in gender, age, education level, occupation and annual family income between whole blood and plasmapheresis donors. Therefore, targeted recruitment strategies should be formulated.

Status analysis of informed consent of blood donors based on content analysis / 中国输血杂志

【Objective】 To understand the current status and shortcomings of the informed consent of blood donors, and to ensure that the informed consent of blood donors complies with ethical norms and management requirements. 【Methods】 From January 1 to 31, 2022, the " Informed Consent Form for Blood Donor" and " Health Status Consultation Form", issued by 6 blood services in Beijing, Shanghai, Tianjin, Chongqing, Guangzhou and Zhejiang, were collected. The contents regarding individual informed consent were set as an analysis unit; 7 first-level codes such as the form of information disclosure, 19 second-level codes such as the title of the content to be informed, and 56 items such as the content to be informed before blood donation were established to make frequency statistics. 【Results】 The informed consent, issued by six blood centers, included such elements as the form of information disclosure, blood donation process and risks, authenticity of information, donor shielding requirements, screening for transfusion-transmitted infections, other uses of blood, and consent decisions. The second-level coding with frequency≥ 4 included 12 items(63.16%), such as the title of informed consent, truthful provision of health consultation information, and blood donation under real-name, of which precautions after blood donation, privacy statement, and withdrawal were " unexplained" frequency codes. The proportion of 56 items with frequency 1~6 was 55.36%, 12.50%, 10.71%, 17.86%, 1.79% and 1.79%, respectively. 【Conclusion】 The informed consent forms and health status consultation forms play a certain role in explaining and conducting informed consent in different places, but some contents are scattered and lack of specifications, information notification weights in shielding requirements while lacks post-donation care and privacy protection, and the decision-making process is inadequate. A standardized content framework for informed consent of blood donors should be established, the caring for blood donors should be promoted, and the full process of consent decision-making should be valued seriously.

Analysis of confidential unit exclusion status of voluntary blood donors in Hefei / 中国输血杂志

【Objective】 To explore the status of confidential unit exclusion(CUE) status among voluntary blood donors in Hefei, so as to provide scientific basis for blood safety. 【Methods】 From 2012 to 2021, 57 out of the 1 158 272 voluntary blood donors in Anhui Blood Center, who requested CUE, were analyzed for population characteristics and their motives in asking for CUE. 【Results】 There were 57(0.004 9%) voluntary blood donors asking for CUE after donation, including 42 males (73.69%) and 15 females (26.32%). All the blood samples were negative in transfusion-transmitted viral marker testing except one positive in syphilis (TP) antibody. The reasons for CUE were as follows: high-risk behaviors (including multiple sexual partners, male-to-male homosexual behaviors, intravenous drug use, etc.) in 23 cases (40.35%), diseases unsuitable for blood donation in 7 cases (12.28%), and other reasons in 14 cases (24.56%). 【Conclusion】 Effective consultation before blood donation is particularly important to ensure blood safety and avoid the waste of blood.

Influence of blood donation before pregnancy on neonatal birth weight / 中国输血杂志

【Objective】 To explore the influence of maternal blood donation before pregnancy on neonatal birth weight. 【Methods】 A total of 6 428 full-term (gestational age ≥37 weeks) singleton pregnant women in Ningbo Medical Center Lihuili Hospital and Ningbo Women and Children′s Hospital from January 2020 to October 2020 were enrolled in this study. The cumulative whole blood donations before pregnancy were obtained through Alipay software. The relevant data of parturients and their fetuses were collected from electronic medical records. 【Results】 The maternal blood donation rate in Zhejiang Province before pregnancy was 14.69%. The average age of women was 29 (27-32), and the median of cumulative blood donation (except 0 mL) before pregnancy was 300 mL. Univariate analysis showed that there was no significant difference in neonatal gender, neonatal birth weight, proportion of low birth weight infants and proportion of macrosomia among non blood donation group, low blood donation group and high blood donation group (P>0.05). After multiple linear regression analysis, it was found that there was no correlation between blood donation before pregnancy and the neonatal birth weight (B=0.123, 95%CI: -1.013-8.461, P>0.05). Multivariate Logistic regression analysis showed that, compared with the non blood donation group, the occurrence of macrosomia was higher in both the low blood donation group and the total blood donation group (OR=1.366, 95%CI: 1.007-1.766, P<0.05; OR=1.369, 95%CI: 1.019-1.851, P<0.05). 【Conclusion】 Maternal blood donation before pregnancy may not be related to neonatal birth weight, but may be related to the probability of macrosomia in their offspring.

Current status of positive psychological qualities among voluntary blood donors in college / 中国输血杂志

【Objective】 To explore the current status of positive psychological qualities among college students who had participated in voluntary blood donation in Changsha area, so as to demonstrate that scientific blood donation can promote mental health. 【Methods】 From May to June 2022, 1 440 college students in Changsha was selected as the research subjects by stratified random sampling method. They were divided into groups based on their experience of blood donation. A questionnaire survey was conducted using the General Information Questionnaire, the Chinese College Student Positive Psychological Product Quality Scale, and the Repeated Blood Donation Behavior Survey Scale. 【Results】 There were differences in the six dimensions of positive psychological quality among different family and friends in terms of their support for blood donation, blood donation status among different family members, understanding of voluntary blood donation knowledge (P<0.05). There were differences in positive psychological qualities among different levels of blood reimbursement experiences (cognitive dimension, moderation dimension, transcendence dimension), different blood donation times (moderation dimension, interpersonal dimension), different blood donation volumes (moderation dimension, fairness dimension), different comprehensive blood donation experiences (moderation dimension, transcendence dimension, interpersonal dimension, emotional dimension) and reasons for blood donation (cognitive dimension, moderation dimension, interpresonal dimension, emotional dimension, fairness dimension)(P<0.05). The positive psychological quality of college students was positively correlated with their intention to repeat blood donation behavior (P<0.01), and the difference was statistically significant. 【Conclusion】 The positive psychological quality of college students with blood donation experience in Changsha surpassed those without blood donation experience, and their positive psychological quality was positively correlated to their intention to repeated blood donation. Therefore, it is recommended to encourage voluntary blood donation among college students.

Research on characteristics of potential blood donors and influencing factors of blood donation intention / 中国输血杂志

【Objective】 To investigate the demographic characteristics and factors affecting the willingness to donate blood among potential donors in China, so as to improve the recruitment efficiency for blood donors. 【Methods】 Non-blood donors aged 18-55 were investigated by online questionnaire to collect data in terms of sociodemographic characteristics (10 items), blood donation related behaviors (9 items), blood donation willingness and factors affecting their willingness (5 items) from October to December 2022. Logistic regression analysis was utilized to investigate their demographic characteristics, and linear regression analysis was used to explore the factors influencing their donation willingness. 【Results】 Logistic regression analysis was conducted with potential blood donors as dependent variable, revealed that individuals who were not only-child 59.6%(334/560) vs 45.4%(98/216), had friends received blood transfusion 63.8%(238/373) vs 48.3%(194/402), had relatives with blood donation experience 63.0%(194/308) vs 51.0%(238/467), and received blood donation information from relatives or friends 64.4%(152/236) vs 51.9%(280/539) were more likely to be potential donors(P0.05). While subjective norms, convenience of blood donation and personal empathy had positive effects on willingness to donate blood, the regression coefficients were all greater than 0, which were 0.58, 0.14 and 0.34 (P<0.05). 【Conclusion】 To establish a wider blood donor community in China, recruitment strategies should be tailored to specific potential donor groups, and efforts should be made to strengthen promotion through relatives and friends, reinforce subjective norms, and provide more flexible options for blood donation time and location selection. In addition, incentive measures should be carefully selected to encourage blood donation.

Preliminary discussion on the causes and influencing factors of blood discarding / 中国输血杂志

【Objective】 To conduct a retrospective statistical analysis of the blood discarding situation in Xuzhou Central Blood Station in the past 5 years, so as to explore relevant measures and strategies to reduce blood discarding and save blood resources. 【Methods】 The discarding situation of our station from 2018 to 2022 was systematically sorted out, and Big data analysis base on the two causes, which was unqualified testing and non unqualified testing, was conducted. 【Results】 The total blood discarding rate of our station from 2018 to 2022 was 9.57% (94 273/985 178), and there was a difference in the total discarding rate between different years (Panti-TP(0.23%, 2 263/985 178)>anti-HCV(0.14%, 1 354/985 178)> HBsAg(0.13%, 1 285/985 178)>anti-HIV (0.12%, 1 140/985 178). The unqualified rate of ALT in males (0.63%, 1 993/317 437) was significantly higher than that in females (0.19%, 388/209 601) (P<0.05). The unqualified rate of ALT at the age of 18-25 accounted for 55% (0.49/0.89) of the total unqualified rate of ALT, and was significantly higher than other age groups (P <0.05). 【Conclusion】 It is suggested to improve the public awareness of voluntary blood donation, strengthen health consultation before blood donation, promote staff training so as to reduce blood discarding rate, as well as ensure sufficient, safe and effective clinical blood use.

Analysis of the re-entry status of voluntary blood donors with single reagent reactivity in Hohhot / 中国输血杂志

【Objective】 To statistically analyze the re-entry test and blood re-donation of HBV, HCV, TP and HIV single-reagent reactive blood donors in Hohhot from 2019 to 2021, so as to demonstrate the rationality, feasibility and necessity of the re-entry strategy of voluntary blood donors in Hohhot, and provide theoretical support for further standardizing of the reentry of blood donors. 【Methods】 A total of 225 samples of blood donors who applied for re-entry in Hohhot from 2019 to 2021 were collected, and HBV, HCV and HIV were tested by two reagent serological tests and nucleic acid tests. TP anti-TP was detected by two reagent serological methods. The test results were all non-reactive and met the requirements of re-entry. The blood donation status of blood donors after re-entry was followed up and analyzed. 【Results】 Among the 225 cases detected for HBV, HCV, TP and HIV from 2019 to 2021 in Hohhot, 178 were qualified for the returning, with a re-entry rate of 79.11%, and 75 donated blood again, with a after re-entry re-donation rate of 42.13%. 【Conclusion】 The strategy of returning for HBV, HCV, TP and HIV single reagent reactive blood donors in Hohhot is effective, and has positive significance for safeguarding the rights and interests of blood donors and alleviating regional blood supply shortages.

Analysis of the impact of setting up plasmapheresis station on the collection volume of voluntary blood donation based on panel vector autoregressive model / 中国输血杂志

【Objective】 To analyze the dynamic relationship between the setting up of plasmapheresis station and the volume of voluntary blood donation collected using panel vector autoregressive model, so as to provide scientific reference for the management policies of blood stations and plasmapheresis stations in China. 【Methods】 The data collected from blood stations in seven administrative regions of Guangyuan, Sichuan Province from 2011 to 2021, as well as plasma collection data from two plasmapheresis stations in the region within two years since their operation, were collected. A panel vector autoregressive model was constructed. Impulse response analysis and variance decomposition analysis were used to analyze the impact and time lag effects of simulated plasmapheresis station settings on the collection volume of voluntary blood donation. Covariance analysis was used to explore whether the establishment of plasmapheresis station had an impact on the volume of voluntary blood donation collected after excluding the impact of initial value differences. 【Results】 The pulse response results showed that after the plasmapheresis station was set up, there was a negative impact effect on the voluntary blood donation collection volume at the first stage, and its impact began to rise after the second stage, reached the highest value in the third stage, and then began to decline. After the seventh stage, it tended to be stable. However, within the 10 stage range, the confidence interval for the response strength of voluntary blood donation collection volume always included 0, indicating that the response of blood collection volume to the plasmapheresis station setting in the region was not statistically significant. The results of variance decomposition showed that the contribution of collection volume of voluntary blood donation to their own impact reached 94.3%. In terms of the contribution of plasmapheresis station factors, the number of plasma donors has a relatively greater impact on the volume of voluntary blood donation collected(2.2%). Covariance analysis showed that after removing the initial confounding factors, whether to establish a plasmapheresis station had no significant impact on blood donation volume in the two groups of regions (P>0.05). 【Conclusion】 The establishment of a new plasmapheresis station will have a certain impact on blood collection volume of blood stations in the region in a short term, but in the long term, it may not directly affect the voluntary blood donation collection in the region.