Incentives for plasma donation.

BACKGROUND AND OBJECTIVES: This work provides an overview of the incentives used for plasma donation in Europe and beyond. The overview can provide new ideas to blood establishments. MATERIALS AND METHODS: We conducted a systematic online search of incentives used and asked national experts to validate the data across all European Union countries as well as other European and non-European countries. We categorized the data into level of incentive (using the Nuffield Council on Bioethics' rungs [2011]) and country. RESULTS: We analysed more than 490 organizations across 26 countries. Our findings reveal different incentives used in these countries. Snacks and pre-donation health checks are commonly provided. In addition, loyalty programmes, small gifts, vouchers, lotteries, travel compensations and time off from work extend the strategic incentive portfolio. Only seven countries offer financial compensation ranging from the equivalent of 10-35€ for European countries. In countries with a decentralized model, where more than one organization collects plasma, we observe that more diversified incentive strategies are generally used, including monetary and non-monetary incentives. In countries with a centralized model, where only one organization is allowed to collect plasma, financial compensation is usually not offered. Centralized plasma collection without financial compensation relies on a wider range of non-monetary incentives than with financial compensation. CONCLUSION: The country group analysis offers valuable insights into the relationship between incentive strategies and the prevailing centralized versus decentralized plasma collection model. This overview provides a broader understanding of incentives used by blood establishments and offers avenues for future practice.

Blood Donor Incentives across 63 Countries: The BEST Collaborative Study.

Incentives for blood donors are a much-debated strategy intended to ensure a sufficient supply of blood. Yet, there is a fundamental lack of knowledge about which incentives are offered by different blood collectors. We provide a comprehensive description of incentive policies for whole blood donors across 63 countries and 50 states of the United States. We collected data on incentive policies by conducting 2 surveys among representatives of blood collection establishments. Additionally, we integrated incentive data from an existing study and the World Health Organization (WHO). Lastly, we performed a web content analysis of blood collector websites and news releases to extend incentive data for the United States as well as underrepresented regions. We present descriptive analyses illustrating the type and value of incentives and their geographical distribution around the globe. Approximately half of the countries in our sample employ financial incentives, which include cash and tax benefits, but also less conventional incentives, such as healthcare supplements and raffles. Time off work is also commonly offered to blood donors and varies across blood collection establishments in duration and whether it is granted to all donors or only to those whose employer allows it. There is a geographical clustering of incentives, such that neighboring countries are more likely to employ similar incentives. This study provides insights into the strategies used for incentivizing blood donation and highlights the global diversity of incentive policies for whole blood donors. In stark contrast to WHO guidelines, half of the countries surveyed employ some kind of high-value incentive for blood donors. More realistic guidelines that are adapted to the local cultural and institutional context may be needed to maintain an adequate blood supply.

How public trust and healthcare quality relate to blood donation behavior: Cross-cultural evidence.

Blood donors are indispensable for enabling a myriad of medical procedures and treatments. We examined how public trust in the healthcare system and healthcare quality relate to individuals' likelihood of donating blood, using survey data from representative samples of 28 European countries (N = 27,868). Our preregistered analyses revealed that country-level public trust, but not healthcare quality, predicted individual propensity to donate blood. Notably, public trust decreased over time in many countries, while healthcare quality increased. Our results highlight the role of subjective perceptions of the healthcare system, rather than the objective state of healthcare, for blood donation behavior in Europe.

The social contagion of prosocial behaviour: How neighbourhood blood donations influence individual donation behaviour.

Life-saving transfusions and numerous other medical treatments are enabled by a minority of people that donate blood. But why do some people repeatedly engage in such prosocial behaviour, especially when it is costly to themselves? This study examines to what extent social contagion within neighbourhoods - changing behaviour in response to the behaviour of others - affects repeated blood donation behaviour. We draw on longitudinal survey and register data from a representative sample of blood donors in the Netherlands from 2007 to 2014 (N = 15,090). Using a panel data model and an instrumental variable approach, we find that donors are positively affected by donations made by other donors living in their neighbourhood. This effect does not seem to be mediated by normative or informational social influence. Exploratory analysis further attributes this finding to social contagion within donor couples. Our study contributes to the literature on repeated blood donation behaviour, and can inform retention strategies of blood banks.

Did you donate? Talking about donations predicts compliance with solicitations for donations.

Many forms of prosocial behaviour are highly institutionalized. They are facilitated by organizations that broker between donors and recipients. A highly effective tool that organizations use to elicit prosocial behaviour are solicitations for donations (e.g., of blood, time, or money). Using register and survey data on blood donations in the Netherlands, we examine to what extent compliance with these solicitations is predicted by being recruited via word of mouth (WOM) and talking about donations. Our model predicts that donors that are one unit higher on our measure of talking about donations (range = 1-4) have a 2.9 percentage points higher compliance with solicitations for donations. In addition, this association is stronger for novice donors. Our study demonstrates the social embedding of the donors' decision-making processes about compliance. For practice, our results imply that organizations may increase their contributors' communication about donations to increase the effectiveness of their solicitations.

Blood Donation Narratives on Social Media: A Topic Modeling Study.

Social media have shown great potential for producing significant changes in behavior and have become the cornerstone for many public health and agency efforts. The nonprofit sector -including blood collection agencies- has adopted social media to aid their cause and reach their goals. However, despite the tremendous impact of social media on society and its promising role for donor recruitment and retention, it has been overlooked in donor research. This study therefore sought to map the social media landscape around blood donation. We showcase an inductive computational method to make sense of vast amounts of dynamic unstructured blood donation text data that exists on social media. With this method, we display what is discussed about blood donation on social media, how these topics are distributed on Facebook and Twitter, and how the prevalence of these topics changes over time. We applied structural topic modeling on 7 years of Dutch blood donation Facebook and Twitter data by the general public. We found 25 topics clustered in 6 distinct clusters. Over time, there is a substantial reduction of messages in which donors announce their donations. Topics that emphasize the positives of blood donation, including donor identity-related topics, are rising. In addition, the findings show a clear social media platform contrast. Topics related to campaigns and controversial policies were found more on Twitter and positive donation topics and topics related to the donation process more on Facebook. To make optimal use of social media for recruitment and retention campaigns and efforts, blood collection agencies should recognize the turbulent environment in which they take place. Monitoring public opinions about blood donation will help blood collection agencies make strategic choices and utilize social media more effectively.

Low awareness of past SARS-CoV-2 infection in healthy plasma donors.

Awareness of infection with SARS-CoV-2 is crucial for the effectiveness of COVID-19 control measures. Here, we investigate awareness of infection and symptoms in relation to antibodies against SARS-CoV-2 in healthy plasma donors. We asked individuals donating plasma across the Netherlands between May 11th and 18th 2020 to report COVID-19-related symptoms, and we tested for antibodies indicative of a past infection with SARS-CoV-2. Among 3,676 with antibodies, and from questionnaire data, 239 (6.5%) are positive for SARS-CoV-2 antibodies. Of those, 48% suspect no COVID-19, despite the majority reporting symptoms; 11% of seropositive individuals report no symptoms and 27% very mild symptoms at any time during the first peak of the epidemic. Anosmia/ageusia and fever are most strongly associated with seropositivity. Almost half of seropositive individuals do not suspect SARS-CoV-2 infection. Improved recognition of COVID-19 symptoms, in particular, anosmia/ageusia and fever, is needed to reduce widespread SARS-CoV-2 transmission.

New blood donors in times of crisis: Increased donation willingness, particularly among people at high risk for attracting SARS-CoV-2.

BACKGROUND: Traditionally, during crises the number of new blood donors increases. However, the current coronavirus disease 2019 (COVID-19) pandemic created additional barriers to donate due to governmental prevention measures and increased personal health risks. In this report, we examined how the pandemic affected new donor registrations in the Netherlands, especially among groups with higher risk profiles for severe COVID-19. Additionally, we explored the role of media for blood donation and new donor registrations. STUDY DESIGN AND METHODS: We analyzed new donor registrations and attention for blood donation in newspapers and on social media from January until May 2020, in comparison to the same period in 2017 to 2019. RESULTS: After the introduction of nationwide prevention measures, several peaks in new donor registrations occurred, which coincided with peaks in media attention. Interestingly, people with a higher risk profile for COVID-19 (e.g., due to age or region of residence) were overrepresented among new registrants. DISCUSSION: In sum, the first peak of the current pandemic has led to increased new blood donor registrations, despite the associated increased health risks. Time and future studies will have to tell whether these new donors are one-off 'pandemic' donors or if they will become regular, loyal donors.

Validation of a standardized donor health questionnaire across substances of human origin.

BACKGROUND AND OBJECTIVES: A donor health questionnaire (DHQ) aims to ensure the safety of donors and recipients of transfusions or transplantations with blood components, plasma-derived medicinal products, tissues, haematopoietic stem cells and medically assisted reproduction (in short substances of human origin; SoHO). Currently, many different DHQs exist across countries and SoHO. TRANSPOSE (TRANSfusion and transplantation PrOtection and SElection of donors) developed and validated a standardized DHQ to use across countries and SoHO. We tested whether participants understand the questions and provide honest answers. METHODS: For the validation of the standardized DHQ, two demographically representative online surveys were conducted in Germany (N = 3329) and Austria (N = 3432). We surveyed whether participants understood each DHQ question and would answer the questions truthfully. We used experimental settings to test whether there is a difference between mode of administration (print vs. online), the order of the questions (subject vs. chronological order), and the positioning of the general state of health question (beginning vs. end) in the DHQ. Using regression models, we tested the DHQ's impact on participant mood after completion and on socially desirable response behaviour. RESULTS: Participants understood the DHQ questions well and would answer them honestly. Nevertheless, the data show different levels of understanding and honesty when responding. Administration mode was the only characteristic that had a significant influence on mood, with the online version resulting in a more favourable mood in comparison to the printed version. CONCLUSION: The DHQ was well understood and had a low dishonest tendency. Our findings can serve as an impulse for further research on DHQ criteria across other SoHO and countries.

Altruism in blood donation: Out of sight out of mind? Closing donation centers influences blood donor lapse.

In this paper, we use register data on all blood donors (n = 259,172) and changes in geographical locations of blood donation centers in the Netherlands over the past decade, to examine the strength of altruistic motivations in blood donation by testing how blood donor behavior changes after the cost of donating in the form of time and inconvenience increases. We examined whether closing donation centers influences blood donor lapse, and whether the risk for lapse varies between donors with different blood groups. A lower lapsing risk for donors with universal, O-negative blood as costs increase is considered as evidence of altruism: continued efforts in making a societal impact despite the increased time commitment would indicate altruism in donor behavior. In the total sample, 137,172 (52.9%) donors lapsed at least once. We found a very strong effect of changes in the distance to the nearest collection point on donor lapse. Donors whose nearest donation center closed were 53% more likely to lapse than donors whose donation center remained open, with the risk for donor lapse increasing with each extra kilometer distance to the new nearest donation center. While O-negative donors were 10.5% less likely to lapse after closing a donation center compared to donors with other blood groups, the effect of closing was similar across blood groups. Based on these results, we conclude that blood donors are clearly sensitive to cost changes imposed by blood banks and that they are not particularly motivated by altruistic concerns. Future studies are recommended to further examine the role of contextual factors in motivational change across the blood donor career. Blood banks are advised to strategically place donation centers throughout the country to promote blood donations, and design interventions to reduce donation barriers after changing their donation centers' locations.

How donor selection criteria can be evaluated with limited scientific evidence: lessons learned from the TRANSPOSE project.

BACKGROUND AND OBJECTIVE: Donor selection criteria (DSC) are a vital link in the chain of supply of Substances of Human Origin (SoHO) but are also subject to controversy and differences of opinion. Traditionally, DSC have been based on application of the precautionary principle. MATERIALS AND METHODS: From 2017 to 2020, TRANSPOSE (TRANSfusion and transplantation PrOtection and SElection of donors), a European research project, aimed to identify discrepancies between current DSC by proposing a standardized risk assessment method for all SoHO (solid organs excluded) and all levels of evidence. RESULTS: The current DSC were assessed using a modified risk assessment method based on the Alliance of Blood Operators' Risk-based decision-making framework for blood safety. It was found that with limited or diverging scientific evidence, it was difficult to reach consensus and an international standardized method for decision-making was lacking. Furthermore, participants found it hard to disregard their local guidelines when providing expert opinion, which resulted in substantial influence on the consensus-based decision-making process. CONCLUSIONS: While the field of donation-safety research is expanding rapidly, there is an urgent need to formalize the decision-making process regarding DSC. This includes the need for standardized methods to increase transparency in the international decision-making process and to ensure that this is performed consistently. Our framework provides an easy-to-implement approach for standardizing risk assessments, especially in the context of limited scientific evidence.

Barriers to blood donation on social media: An analysis of Facebook and Twitter posts.

BACKGROUND: To better understand donor behavior and ensure a safe and sufficient blood supply, various observational studies have examined barriers to blood donation. This study used Facebook and Twitter data to enhance existing research on donation barriers and associated emotions communicated on social media by both donors and non-donors. STUDY DESIGN AND METHODS: We conducted a semantic network analysis (SNA) with 168 232 public Dutch language social media messages from Facebook and Twitter during 2012-2018. SNA uses concepts as nodes in a network and the relationship (ie, co-occurrence) as links between them. We identified the relationship between donation barriers, non-donation (voluntary and involuntary), and dissatisfaction (anger and disappointment) within social media messages. This computational method was combined with an analysis examining significant relationships in-depth. RESULTS: Twelve donation barriers were identified: lifestyle, donation location, medical reasons, no invitation, opening times, physical reactions, pregnancy, remuneration, sexual risk behavior, time constraints, travels, and waiting times. More messages related to involuntary non-donation compared to voluntary non-donation. Involuntary non-donation was associated most strongly with medical reasons and sexual risk behavior, while voluntary non-donation was associated most strongly with resentment regarding remuneration of the blood bank's top management. Anger associated most strongly with sexual risk behavior and disappointment most strongly with medical reasons. CONCLUSION: Discussions around blood donation are increasingly taking place online. Donation barriers found in this study differ from those in survey research. Insights into how donation barriers are communicated in an ever-growing online environment can be utilized to enhance recruitment and retention strategies.

Beyond Description: The Predictive Role of Affect, Memory, and Context in the Decision to Donate or Not Donate Blood.

BACKGROUND: Research on the recruitment and retention of blood donors has typically drawn on a homogeneous set of descriptive theories, viewing the decision to become and remain a donor as the outcome of affectively cold, planned, and rational decision-making by the individual. While this approach provides insight into how our donors think about blood donation, it is limited and has not translated into a suite of effective interventions. In this review, we set out to explore how a broader consideration of the influences on donor decision-making, in terms of affect, memory, and the context in which donation takes place, may yield benefit in the way we approach donor recruitment and retention. SUMMARY: Drawing on emerging research, we argue for the importance of considering the implications of both the positive and the negative emotions that donors experience and we argue for the importance of directly targeting affect in interventions to recruit nondonors. Next, we focus on the reconstructed nature of memory and the factors that influence what we remember about an event. We discuss how these processes may impact the retention of donors and the potential to intervene to enhance donors' recollections of their experiences. Finally, we discuss how our focus on the individual has led us to neglect the influence of the context in which donation takes place on donor behavior. We argue that the amassing of comprehensive large data sets detailing both the characteristics of the individuals and the context of their giving will ultimately allow for the more effective deployment of resources to improve recruitment and retention. KEY MESSAGES: In suggesting these directions for future research, our want is to move beyond the ways in which we have traditionally described blood donation behavior with the aim of improving our theorizing about donors while improving the translational value of our research.

The impact of age and sex on first-time donor return behavior.

BACKGROUND: This study examined the impact of age and sex of first-time donors who had not experienced an adverse event or deferral on their likelihood of and time to return. STUDY DESIGN AND METHODS: On behalf of the Biomedical Excellence for Safer Transfusion (BEST) Collaborative, international blood collection agencies (BCAs) were invited to provide data on first-time whole blood donors in 2014, including initial presentation date, collection site type, age, sex, blood type, return to donate within 24 months (yes/no), and subsequent presentation date. RESULTS: Eight BCAs contributed 706,789 records. The overall odds of returning to donate were slightly lower in female versus male donors, and the overall age trend was U-shaped with younger and older donors having higher odds for returning relative to middle-aged donors. However, variations by BCA were observed. Specifically, in three BCAs, women had higher odds of returning to donate than men. Further, while across seven BCAs the smallest cohort of older first-time donors returned at a higher rate and returned more quickly than middle-aged first-time donors, the behavior of younger donors varied substantially between BCAs. CONCLUSION: While older first-time donors are more likely to return and return more quickly than middle-aged donors they make up only a small proportion of first-time donors, whereas the larger group of younger donors exhibits less clear patterns of return compared to middle-aged donors. Further research is needed to determine whether targeting the recruitment of older donors or bolstering retention of middle-aged donors would be most effective in maintaining the blood supply.

Life events and donor lapse among blood donors in Denmark.

BACKGROUND AND OBJECTIVES: The likelihood of donating blood changes over the life course, with life events shown to influence entry to and exit from the donor population. While these previous findings provide valuable insights for donor management, blood collection agencies need to be cautious about generalizing findings to other countries as blood donor behaviour is context-specific. To examine cross-country variations in donor behaviour, the repeatability of a previous Dutch study on life events and blood donor lapse is examined by using a sample of Danish donors. MATERIALS AND METHODS: Register data from Statistics Denmark was linked to the Scandinavian Donations and Transfusions database (n = 152 887). Logistic regressions were conducted to examine the association between life events in 2009-2012 and blood donor lapse in 2013-2014. RESULTS: Of the total sample, 69 079 (45·2%) donors lapsed. Childbirth and losing a job increased the lapsing risk by 11% and 16%, respectively, while health-related events in the family (i.e. blood transfusion, disease and death) decreased the lapsing risk by 5%, 7% and 9%, respectively. CONCLUSION: Life events are associated with donor lapse of Danish donors. These results are comparable to previous findings from the Netherlands (i.e. childbirth and labour market transitions increased lapsing risk; health-related events decreased lapsing risk), with two thirds of the associations being in the same direction. Differences between study results were mainly related to effect sizes and demographic compositions of the donor pools. We argue contextual factors to be of importance in blood donor studies.

Do deferred donors continue their donations? A large-scale register study on whole blood donor return in the Netherlands.

BACKGROUND: Temporary deferral of whole blood donors is essential for a safe blood supply, yet deferral may impact donor return. Different deferral reasons may differently affect return, and donor experience may interfere with this. Therefore, we studied the joint effect of deferral reason and donor experience on return. STUDY DESIGN AND METHODS: We used a large-scale retrospective cohort design including all Dutch donors with a whole blood donation attempt in 2013 to 2015 (n = 343,825). We established details of the target donation (including deferral reason if applicable), details of attendances in the 2 years after the target donation, donor characteristics (blood type, sex, age), and donor experience (first-time, novice, experienced, reactivated). Descriptive statistics as well as time-to-events methods were used. RESULTS: Experienced donors were most likely to return, even after deferral (nondeferred 96% vs. deferred 92%). First-time and reactivated donors were less likely to return after deferral (69 and 61%, respectively) compared to their nondeferred counterparts (82 and 76%, respectively). First-time hemoglobin (Hb)-deferred donors were less likely to return and slower to return than other donors. Similar results were found for reactivated donors deferred for short-term medical reasons. CONCLUSION: Deferral reason and donor experience individually as well as jointly impacted donor return. Particularly first-time and reactivated donors were at risk of nonreturn, especially when deferred for Hb or short-term medical reasons, respectively. Blood banks designing and implementing donor retention strategies should thus not only take successful but also unsuccessful donation experiences and different experience levels into account.