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Inicio Cirugía Española (English Edition) The acceptance of xenotransplantation among African immigrants living in Spain
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Vol. 101. Núm. 6.
Páginas 456-459 (junio 2023)
Vol. 101. Núm. 6.
Páginas 456-459 (junio 2023)
Scientific letter
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The acceptance of xenotransplantation among African immigrants living in Spain
Aceptación del xenotrasplante de órganos entre los inmigrantes Africanos residentes en España
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Antonio Ríosa,
Autor para correspondencia
arzrios@um.es

Corresponding author.
, Ana López-Navasa,d, Marco Antonio Ayala-Garcíaa,e, Pablo Ramíreza,b,c
a Proyecto Colaborativo Internacional Donante (International Collaborative Donor Project), Murcia, Spain
b Unidad de Trasplantes, Hospital Clínico Universitario Virgen de la Arrixaca, IMIB-Arrixaca, Murcia, Spain
c Departamento de Cirugía, Pediatría, Obstetricia y Ginecología, Universidad de Murcia, Murcia, Spain
d Departamento de Psicología, Universidad Católica San Antonio de Murcia, Murcia, Spain
e Hospital Regional General Número 58 del IMSS, Guanajuato, México
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Despite the improvement in donation rates,1 human organs are insufficient to cover basic transplantation needs. In recent months and after overcoming various immunological problems, xenotransplantation has been growing in importance since the first clinical xenotransplantation was performed.2 This unlimited source of organs could be the definitive solution for transplantation.

However, xenotransplantation involves genetic manipulation of animals as well as ethical and moral factors that may lead to social rejection.3 In countries like Spain that have preclinical xenotransplantation programs, social acceptance among the existing population is quite favourable,4 but the same is not true of immigrant population groups.5,6 This is important in southern Europe, where the percentage of the immigrant population is increasing, specifically Latin American and African immigrants. The attitude of the Latin American population towards xenotransplantation has been shown to be less accepting than the Spanish population.6 The attitude of the African population, which is the largest immigrant population group in Spain and Europe, has not yet been studied.

The objectives of this study are to determine the attitude towards solid organ xenotransplantation among the population born in Africa residing in Spain and to analyze the associated psychosocial variables.

The project was carried out in the population ≥15 years of age born on the African continent and residing in Spain, taking advantage of the infrastructure of the project ‘Organ donation among the African immigrant population’ carried out by the International Donor Collaborative Project.7 The sample was stratified based on the nationality of origin of the respondent, age and sex.7 Their attitude was analyzed using the validated Xenotransplantation attitude questionnaire ‘PCID - XenoTx Rios’ (Questionnaire of the International Collaborative Donor Project on the attitude towards Xenotransplantation, developed by Dr Ríos)8 with a total explained variance of 61.18% and a Cronbach's alpha internal consistency reliability coefficient of 0.72.

The questionnaire was self-completed anonymously. In each of the population centers where the sampling was carried out, the cooperation of immigrant associations was necessary to locate potential participants. For each case, we verified that the potential survey subject met the stratification criteria, and the participants were explained that the opinion survey was completely anonymous.

For the statistical analysis, the Student’s t test, chi-squared test, and a logistic regression analysis were applied.

The degree of completion of the questionnaire was 87% (3618 surveys completed by 4145 selected participants). Regarding the attitude towards xenotransplantation, if the results were comparable to those achieved with human donors, 15% (n = 548) would be in favor, 40% (n = 1431) undecided, and the remaining 45% (n = 1639) against. Regarding the attitude if the results were worse than those achieved with human donors, 10% (n = 373) would be in favor, 42% (n = 1527) undecided and the remaining 48% (n = 1718) against.

After completing the bivariate analysis (Table 1), a logistic regression analysis was carried out, which obtained the independent variables associated with the attitude towards xenotransplantation (Table 2): (1) country of origin; (2) level of education; (3) religion of the respondent; (4) having discussed organ donation and transplantation with her/his family; (5) attitude towards human organ donation; (6) thoughts of possibly needing a transplant oneself in the future; and (7) participation in prosocial activities.

Table 1.

Factors associated with the attitude towards xenotransplantation between the African population residing in Spain; Bivariate analysis.

Variable  Attitude in favor of xenotransplantation  Attitude against xenotransplantation  P 
Geographical variables       
Country of birth  Cameroon  Mali  <0.001 
  Ivory Coast  Gambia   
Continental zone  Central Africa  North Africa  <0.001 
Traditional African areas  Central Africa  North Africa  0.005 
    West Africa   
Socio-Personal variables       
Age  31 ± 8 yrs  33 ± 9 yrs  <0.001 
Sex  –  –  0.560 
Marital status  –  –  0.852 
Children?  –  –  0.092 
Level of education  University studies  No studies  <0.001 
Religious variables       
Religion  Christian  Muslim  <0.001 
Opinion of religion about organ transplantation  Know that it is favorable  Believe that it is against  <0.001 
Social Interaction Variables       
Discuss organ donation and transplantation with the family  Yes  No  <0.001 
Opinion of spouse/partner about donation and transplantation  Favorable  Unfavorable  <0.001 
Cooperate in prosocial activities  Yes  No  <0.001 
Variables related with donation and human organ transplants       
Attitude towards human organ donation  In favor  Not in favor  <0.001 
Personal experience with organ donation and transplantation  –  –  0.135 
Believe that one might need a transplant in the future  Yes  No  <0.001 
Attitude towards related living donor  In favor  Not in favor  <0.001 
Table 2.

Factors associated with the attitude towards xenotransplantation among the African population living in Spain; Multivariant logistic regression analysis.

Variable  Regression coeficient (β)  Error Standard  Odds Ratio (Confidence Interval) 
Country of Origin:         
Mali (n = 402)       
Algeria (n = 441)  1.097  0.246  2.994 (4.854−1.848)  (0.001 
Morocco (n = 1188)  1.033  0.218  2.808 (4.310−1.831)  (0.001 
Senegal (n = 468)  1.180  0.239  3.257 (5.208−2.036)  (0.001 
Nigeria (n = 362)  1.056  0.249  2.873 (4.672−1.763)  (0.001 
Ghana (n = 237)  0.327  0.290  1.386 (2.450−0.784)  0.260 
Cameron (n = 41)  1.267  0.417  3.546 (8.064−1.567)  0.002 
Ivory Coast (n = 24)  0.928  0.536  2.531 (7.246−0.884)  0.083 
Mauritania (n = 22)  1.932  0.597  6.896 (22.222−2.145)  0.001 
Guinea (n = 337)  1.150  0.251  3.154 (5.154−1.930)  (0.001 
Gambia (n = 30)  1.425  0.609  4.149 (13.698−1.259)  0.019 
Other countries (n = 66)  1.462  0.399  4.310 (9.433−1.972)  (0.001 
Level of education:         
None (n = 1269)       
Primary (n = 1674)  0.065  0.129  1.067 (1.375−0.828)  0.613 
Secondary (n = 580)  0.025  0.164  1.025 (1.412−0.744)  0.878 
University (n = 95)  1.780  0.264  5.917 (10−3.533)  <0.001 
Religion:         
Islam (n = 2.816)       
Christianity (n = 475)  0.712  0.156  2.040 (2.770−1.503)  <0.001 
Other Religions (n = 80)  0.303  0.345  1.353 (2.659−0.688)  0.380 
Atheist – Agnostic (n = 247)  0.423  0.201  1.526 (2.262−1.029)  0.035 
Discuss organ donation and transplants with family members:         
No (n = 2550)       
Yes (n = 1068)  0.458  0.120  1.582 (1.250−2.202)  <0.001 
Attitude towards human organ donation:         
Not in Favor (n = 2506)       
In favor (n = 1112)  1.069  0.119  2.915 (3.676−2.304)  <0.001 
Believe that one may need a transplant in the future:         
Doubt (n = 2399)       
Yes (n = 871)  0.461  0.121  1.584 (2.012−1.251)  <0.001 
No (n = 348)  0.664  0.173  1.941 (2.724−1.383)  <0.001 
Collaborate in pro-social activities:         
No, and won’t (n = 681)       
Yes (n = 1.290)  1.288  0.187  3.623 (5.235−2.512)  <0.001 
No, but would like to. (n = 1626)  0.034  0.190  1.035 (0.712−1.503)  0.858 

The new social reality that migratory flow is causing worldwide has implications in healthcare. Therefore, it is necessary to take these groups into account for any activity with a social implication if they are to be successful. For xenotransplantation, in addition to overcoming immunological and technical barriers, social acceptance must also be achieved. Nonetheless, xenotransplantation acceptance rates vary greatly in population studies, ranging from 40% to 75%.4–6,9

In the African population residing in Spain, no studies have been published in their countries of origin that would allow us to compare the results obtained. In this study, it is observed that their attitude is not favorable, and in the Western world it is only comparable to the data obtained from the Latin American immigrant population residing in Florida, where only 10% are in favor.9 Compared to other studies that use this same questionnaire, this group presents the most negative attitude.4–6 In the Spanish population, however, the attitude in favor is around 70%.4

It should be noted that healthy persons find it difficult to imagine themselves so sick as to require xenotransplantation. In contrast, this situation is quite different in patients awaiting transplantation. Thus, some authors have reported greater willingness to receive xenotransplants among patients than among the general population due to their pragmatic viewpoint, where survival prevails over other ethical concerns.10

Finally, the close relationship observed between the attitude towards human organ donation and xenotransplantation can be used as indirect promotion, as this group preferentially requires campaigns promoting human organ donation due to their unfavorable attitude.7 Specific campaigns about xenotransplantation awareness are complex to design for this population, especially considering that they require a specific approach, and there is generally a language barrier. However, working groups with preclinical xenotransplantation projects must keep this population in mind as a priority group when designing information and social awareness activities, as this group is often not well informed.

In conclusion, we can say that the attitude towards xenotransplantation of Africans residing in Spain is unfavorable and is influenced by several psychosocial factors.

Financing

This study was co-financed by a Mutua Madrileña Research Project (ID98FMM020).

Acknowledgements

This study would not have been possible without the cooperation and support of the 31 immigrant associations that have collaborated in the development of this project.

Likewise, the authors would like to thank the many collaborators who participated in the field work of this study, without whose support and work this study could not have been carried out.

References
[1]
Council of Europe. International figures on organ, tissue & haematopoietic stem cell donation & transplantation activities. Documents produced by the council of Europe European Committer (partial agreement) on organ transplantation (CD-P-TO). Year 2020. Dominguez-Gil B editor. Newsletter Transplant 2021; 26 (Monographic volume). ISSN: 2171-4118. http://www.ont.es/publicaciones/Paginas/Publicaciones.aspx (Last Consult 21-22-2022).
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[8]
A. Ríos, A. López Navas, C. de Francisco, A. Sánchez, A.M. Hernandez, P. Ramírez, et al.
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Please cite this article as: Ríos A, López-Navas A, Ayala-García MA, Ramírez P. Aceptación del xenotrasplante de órganos entre los inmigrantes Africanos residentes en España. Cir Esp. 2022. https://doi.org/10.1016/j.ciresp.2022.05.012

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