The current article details a position statement and recommendations for future research and practice on planning and implementation intentions in health contexts endorsed by the Synergy Expert Group. The Group comprised world-leading researchers in health and social psychology and behavioural medicine who convened to discuss priority issues in planning interventions in health contexts and develop a set of recommendations for future research and practice. The Expert Group adopted a nominal groups approach and voting system to elicit and structure priority issues in planning interventions and implementation intentions research. Fortytwo priority issues identified in initial discussions were further condensed to 18 key issues, including definitions of planning and implementation intentions and 17 priority research areas.Each issue was subjected to voting for consensus among group members and formed the basis of the position statement and recommendations. Specifically, the Expert Group endorsed statements and recommendations in the following areas: generic definition of planning and specific definition of implementation intentions, recommendations for better testing of mechanisms, guidance on testing the effects of moderators of planning interventions, recommendations on the social aspects of planning interventions, identification of the preconditions that moderate effectiveness of planning interventions, and recommendations for research on how people use plans.

Female donors report more VVRs than male donors, but male donors have a higher stopping risk after a VVR than female donors. Coping differences and possible reporting tendencies might play a role. For donor retention purposes, prevention and coping techniques should take sex differences into account.

Motivational differences already exist between future whole blood and plasma donors before their first donation. Although a feeling of self-efficacy is necessary for all new donors, more favorable cognitions are important for future plasma donors. Recruitment strategies for plasma donors should focus on attracting the more self-confident donors by highlighting the usefulness of plasma donation.

Objective: To conduct a meta-analysis of studies examining the determinants of behaviors performed by parents to promote the health of their child, termed parent-for-child health behaviors, based on an extended theory of planned behavior. Specifically, the study aimed to meta-analyze correlations among theory of planned behavior constructs, planning, and past behavior, and use them to test theory predictions and effects of salient moderators. Methods: A systematic search identified 46 studies that provided correlations between at least one theory construct and intention or behavior for parent-forchild behaviors. Theory predictions were tested using meta-analytic structural equation modeling. Studies were also coded for candidate moderators of model effects: child age, sample type, time lag between measures of theory constructs and parent-for-child health behavior, study quality, and behavior type, and estimated the proposed model at each level of the moderator. Results: Results supported theory predictions with attitudes, subjective norms, and perceived behavioral control predicting parent-for-child health behavior participation mediated by intention. Perceived behavioral control and planning also directly predicted behavior, and planning partially mediated effects of intention on behavior. Model effects held when controlling for past behavior, supporting the sufficiency of the theory in this behavioral domain. Few moderator effects were found on relations between theory constructs. Conclusions: Findings identified the social cognition determinants of parent-for-child health behaviors, and highlight the potential processes by which they relate to behavior. The current model signposts potentially modifiable targets for behavioral interventions aimed at fostering parental participation in behaviors that promote the health of their children.

In addition to decreasing vasovagal reactions, retention interventions could productively target coping with fatigue and reducing subjective distress after adverse reactions.

What is known?1. Due to increasing migration, blood collection establishments are increasingly required to supply blood for patients from different ethnic backgrounds 2. People from minority groups are generally less actively involved in the blood supply than people from the indigenous population 3. Different ethnic groups can differ in blood group and tissue antigen expression, which can cause alloimmunisation if donor and patient are not from the same ethnic background What this paper adds1. Knowledge on the proportion of ethnic minority groups in the donor panels in 23 countries 2. Knowledge on current and expected shortages in blood supply in 42 blood supply establishments, with a focus on shortages due to ethnic diversity 3. A first inventory of methods used to recruit minority donors, including barriers and obstacles to recruitment ABSTrACT 1. Stable national blood supplies from donated human blood are essential to healthcare services worldwide. Migration has increased over the last years and so more and larger minority groups require blood products in their new countries, often with special characteristics that are not present in the majority population. In many countries however, minorities are less active in blood donations. The Missing Minorities (MIMI) project was initiated by the European Blood Alliance to investigate the problem of low donation rates among minorities. The MIMI project group surveyed 42 blood donation organisations worldwide. The results show a great awareness of the topic, but it is also evident that the applied management strategies are at a very early stage in many countries and that many blood donation organisations in Europe, Australia, Canada and the United States are not yet very successful in recruiting and retaining donors from minority groups. This paper also reports on the different methods of minority blood donor recruitment which have been used by the organisations. These methods require more systematic research in order to verify the findings of the most successful strategies identified in this paper. Overall, this paper can be seen as a first step towards better recruitment methods by showing the current situation, but it is also as a call for more research on the topic.

The findings of this review can be used as a starting point to develop recruitment and retention strategies for Sub-Saharan African persons. Further research is needed to gain more insight in the role of these determinants in specific contexts as socioeconomic features, personal histories and host country regulations may differ per country.

Retention of blood donors has benefits over recruitment of new blood donors. Retention is defined as preventing donors from lapsing and eventually becoming inactive. This review paper discusses literature on the importance of efforts to retain donors, specifically new donors, since lapsing is most common before the fifth donation. Studies have found that intention to donate, attitudes towards blood donation and self-efficacy (does one feel capable of donating blood) are predictors of blood donation. Feelings of 'warm glow' predict donation behaviour better than altruism. The existing literature further suggests that first time donors can be retained by paying extra attention to adverse events (vasovagal reactions and fatigue). These events could be reduced by drinking water and muscle tension exercises. Feelings of anxiety (in regular donors) and stress can further prevent donors from returning. Planning donations amongst busy lives can help retention, and suggestions are given on which interventions might be helpful.