Making routine clinical-care-data available for medical research requires adequate consent to legitimize use and exchange. While, public interest in supporting medical research is increasing, individuals often find it difficult to actively enable researchers to access their data. In addition to broad consent, the idea of (consent-free) data donation has been brought into play as another way to legitimize secondary research use of medial data. However, flanking the implementation of broad consent policies or data donation, the attitude of patients, and the general public toward different aspects of these approaches needs to be assessed. We conducted two empirical studies to this end among Dutch patients (n = 7430) and representative German citizens (n = 1006). Wide acceptance of broad consent was observed among Dutch patients (92.3%), corroborating previous findings among German patients (93.0%). Moreover, 28.8% of the Dutch patients generally approved secondary data-use for non-academic research, 42.3% would make their decision dependent upon the type of institution in question. In the German survey addressing the general population, 78.8% approved data donation without explicit consent as an alternative model of legitimization, the majority of those who approved (96.7%) would allow donated data to be used by universities and public research institutions. This willingness to support contrasted sharply with the fact that only 16.6% would allow access to the data by industry. Our findings thus not only add empirical evidence to the debate about broad consent and data donation, but also suggest that widespread public discussion and education about the role of industry in medical research is necessary in that context.
Increasingly, data from routine clinical care are made available systematically and comprehensively for medical research. Various funding schemes have been implemented to this end in many countries, including the Medical Informatics Initiative (MII) instigated by the German Federal Ministry of Education and Research [1, 2] and recent research data programs funded by the Dutch Association of University Hospitals  and the Dutch Ministry of Health, Welfare and Sports [4, 5]. In addition, biospecimens collected in the course of clinical care in The Netherlands are made available to researchers through a nationwide histo- and cytopathology registry (PALGA) . In Germany, biobanks at university hospitals have formed the German Biobank Association (GBA), coordinated by the German Biobank Node (GBN) of the European BBMRI-ERIC initiative, to coordinate the sampling, storage, and provision of research-relevant biospecimens from prospective studies as well as routine clinical care . All these activities immediately raise the issue of adequate patient consent to legitimize the exchange and use of data and biomaterial.
For prospective medical research involving human subjects to be ethically sound, participants need to give prior informed consent (e.g., [8, 9]). This means that the individuals concerned must be informed beforehand about the purpose, nature, risks, and benefits of the study in question, and that they are able to decide about participation voluntarily and without coercion. However, this approach is difficult to translate from prospective clinical studies to the secondary research use of medical data collected in the course of clinical care, where not all potential purposes of the future use of the data can be anticipated at the time of collection. Consequently, there has been a discussion going on for sometime (e.g., ) about alternative types of consent suitable for secondary data use that would balance the autonomy of patients and the freedom of research . From an ethical point of view, this dilemma undoubtedly echoes the commonly perceived conflict between individual autonomy and the common good .
The concept of so-called “broad consent” is becoming increasingly important for patient-based medical research. In fact, international bodies governing health research, including the World Medical Association and the Council for International Organizations of Medical Sciences/ World Health Organization [8, 9], have approved the implementation of broad consent as “an acceptable alternative” [9, p. 42]. Moreover, in the context of biobanking, research institutions in many countries have already adopted broad consent policies . Following this approach for data as well would not only legitimize a wide, yet underminable scope of research use in the future but could also facilitate comprehensive data sharing within the research community, if the consent process was designed accordingly. This way, broad consent would address the many relevant demands with regard to openness and transparency, for example in the form of the FAIR principles  or through corresponding statements by the International Committee of Medical Journal Editors (ICMJE) .
At the same time, public interest in supporting medical research through the provision of access to medical data increases [16,17,18]. Vis-a-vis the growing amount and scientific potential of such data, however, this development led to an ethically problematic asymmetry: On the one hand, the importance of data for improving population health is widely acknowledged. At the same time, individuals find it difficult to enable researchers directly to actually access their data, which infringes upon their decision autonomy if they want their data to be used . In view of this misalignment, the German Ethics Council (Deutscher Ethikrat) recently brought into play the concept of “data donation” as a way forward for individuals to facilitate research use of their medical data [20, p. 266f]. Like others, the German Ethics Council understands “data donation” as giving consent to the use of one’s data without limiting its timing and purpose provided that (a) the possible consequences, especially for family members, are made sufficiently clear and (b) an appropriate infrastructure for managing and protecting the data is in place.
The discussion about adequate forms of consent to research data use gained momentum when the EU General Data Protection Regulation (Regulation 2016/679 EU, EU-GDPR) became enforceable law in May 2018. According to Article 6 of the EU-GDPR, processing of personal medical data is forbidden unless (a) the data subject (i.e., the patient) has given consent or (b) the processing (i.e., the research) is carried out in the public interest and under conditions laid down by EU or member state law . However, Section 2(j) of Article 9 of the EU-GDPR allows processing of personal data also if “necessary for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes” . This exemption from prior consent is given in accordance with Article 89, which explicitly leaves room for national law to provide derogations under the requirement of safeguards [ibid.].
Against the above background, it appears worthwhile exploring whether data donation (as defined, for example, by the German Ethics Council) represents an acceptable and adequate alternative form of consent, arguing that with its intention to actively support medical research, data donation clearly has the common good as its main foundational ethical principle [12, 22, 23]. With the results of the two studies reported upon in the following, we hope to be able to contribute further to the exploration of new (and possibly more adequate) forms of consent in medical research.
The present work comprises two surveys, carried out in Germany and The Netherlands in 2019, that addressed the attitude of different societal groups toward the secondary research use of personal medical data under certain consent frameworks.
Both surveys drew upon two earlier studies of ours from Northern Germany. The first one, carried out in 2015, was questionnaire-based and comprised 700 outpatients of the Comprehensive Center for Inflammation Medicine (CCIM), University Hospital Schleswig-Holstein (UKSH) Campus Kiel. The study was mostly concerned with the understanding and acceptance of, and motivation to give, broad consent for healthcare-embedded biobanking . The second study, from 2018, was conducted under the same conditions and assessed the level of acceptance of a no-consent policy to legitimize secondary data use in medical research. Both studies revealed that German patients were not only willing to give broad consent but were also likely, under certain circumstances, to accept use of their medical data for research without explicit consent .
As a first step toward generalizing our earlier results to other countries and other societal groups, we assessed the attitude toward, and understanding of, broad consent to a large sample of Dutch individuals from outside the clinical context (“Acceptance of broad consent in The Netherlands” section). Notably, Dutch university hospitals have traditionally followed an “opt out” policy to legitimize secondary research use of medical data and biospecimens. However, first hospitals have recently introduced , or are currently piloting, broad consent (“opt in”) solutions. In a second, representative population survey, we asked members of the general public in Germany for their attitude toward data donation, i.e., toward the practical implementation of a no-consent policy (“Attitude toward data donation without explicit consent in Germany” section).
Descriptive statistics were calculated using IBM SPSS Statistics for Windows . For categorical variables, e.g., the agreement, or not, to a given statement, we determined absolute as well as relative frequencies and used χ2 or Fisher’s exact tests, as appropriate, to assess the statistical significance of any differences noted between Germany and The Netherlands. P values smaller than 0.05 were regarded as statistically significant.
Acceptance of broad consent in The Netherlands
Materials and methods
In co-operation with Patiëntenfederatie Nederland and with support of the Dutch Ministry of Health, Welfare, and Sports, we conducted a web-based survey among 22,000 Dutch patients in 2019, using a questionnaire comparable to that employed in two previous German surveys [17, 18]. In addition, patients were provided an information brochure and a (hypothetical) consent form that represented near-verbatim translations of the corresponding documents routinely issued at UKSH Campus Kiel, Germany, with minor modifications of language, including more informal and simpler language as well as shorter sentences. The only notable difference with regard to content concerned the policy of reporting incidental findings, which had to be re-phrased for the Dutch study in order to comply with national law.
In contrast to the two German surveys, where the attitude toward broad consent was evaluated in the clinic, the goal of the Dutch study was to find out whether patients would accept broad consent even if only affecting them sometime in the future. After answering some general questions about their views on using personal data and biospecimen for scientific research, patients had the choice to read the informational brochure and consent form as well. Patients who did so were then asked to answer questions assessing their understanding of the documents and their attitude toward the approach, and whether this attitude had changed after reading the documents.
As in the German surveys, Dutch patients were also asked to rate their own social attitude. To this end, the German version of the Short Schwartz’s Value Survey (SSVS)  was translated into Dutch. The SSVS is a well-established tool world-wide [27, 28] and has been validated before in its German version . The underlying theory assumes the existence of ten basic human values (power, achievement, hedonism, stimulation, self-direction, universalism, benevolence, tradition, conformity, and security) that can be identified across most human societies and that shape behavior and decision-making of human individuals.
Acceptance of broad consent
Of the 22,000 Dutch patients approached, 7430 participated in the web-based survey (33.8%) and 5258 (70.8% of those who participated) also read the (hypothetical) broad consent documents, followed by completion of the corresponding part of the survey. The study thus achieved an acceptable level of participation for its type (i.e., questionnaire delivery). Most patients were over 60 years of age and highly educated [details were published before by Patiëntenfederatie Nederland, 30] but, since age and education were not found to be of any significant influence on the attitude of patients in the previous German surveys [17, 18], the Dutch and German studies should be well comparable. Of the 5258 participants who agreed to regard the broad consent documents, a total of 3708 (70.5%) had also revealed their attitude toward research use of their data earlier in the survey. Some 3422 of these (92.3%) expressed subsequent willingness to give broad consent, suggesting an approval rate among Dutch patients that is comparable to that noted in the German surveys [17, 18].
Understanding of broad consent
Objective understanding of the broad consent approach was better in the Dutch than in the 2016 German survey (Table 1) despite the fact that the German documents were developed further during the survey. Significantly higher proportions of correct answers (p < 0.05) were given to questions concerning the scientific scope of data and biospecimen use (54.1%), the right to withdraw (76.8%), the possible use of data and biospecimen by external researchers (59.0%), the lack of absoluteness of data protection (84.5%), and the lack of immediate personal benefit from consenting (91.6%). Only with regard to the policy for reporting incidental findings, i.e., the only item where the contents of the Dutch information brochure differed from the German, understanding was significantly poorer among Dutch patients (54.5% vs. 65.0% for Dutch and German patients, respectively; Table 1).
Motivation and human values
In the 2018 German survey , most participants who gave broad consent did so mainly for pro-social reasons, including altruism, reciprocity, solidarity, and gratitude (Table 2). In the Dutch survey reported here, support of research in general was also found to be the main reason for giving broad consent (n = 1375, 40.2%), although at a substantially lower level than in the Germany survey (86.1%). All other aspects of altruism, solidarity, and reciprocity were prevalent among Dutch patients at a consistent albeit low level (20–25%), and gratitude seemed to play an even more minor role (n = 487, 14.2%; Table 2). The predominant SSVS human value in both the Dutch and the German 2018 survey was benevolence. While security was by far the second most important value for German participants, security, universalism, and self-direction played an almost equally important role among the Dutch (data not shown).
Attitude toward secondary use of medical data for purposes other than academic research
Inspired by critical aspects of the German study on data donation reported in Materials and methods in “Attitude towards data donation without explicit consent in Germany” section below, the Dutch questionnaire also asked participants for their attitude toward the secondary use of medical data for purposes other than academic research, including the commercial development of pharmaceuticals or apps. While 2139 patients (28.8%) fully approved and 624 (8.4%) entirely disapproved such use (Fig. 1), the willingness of 3146 patients (42.3%) to grant permission for secondary data use was found to depend upon the nature of the beneficiary institution or the purpose of the data usage. A total of 1521 patients (20.5%) were indifferent toward the issue (“do not know”).
Attitude toward data donation without explicit consent in Germany
Our previous 2018 German survey  was carried out shortly before the EU-GDPR came into force. The goal of that study was to assess the attitude of patients toward the EU-GDPR stipulation that, under certain conditions, patients no longer would have to consent to the use of their personal data for scientific research. The main outcome of the survey, namely that a considerable majority of participants (75.7%) approved of such a consent-free approach, brought into play the possibility of data donation as an alternative form of legitimizing the secondary research use of medical data. In order to assess the generalizability of the survey results to non-patients, a population-based study on the topic was instigated in 2019 by TMF e.V. (Technologies, Methods and Infrastructure for Networked Medical Research), an umbrella non-profit organization for medical research based in Berlin, Germany.
Materials and methods
The aim of the 2019 TMF survey reported here was to evaluate the attitude of the general population in Germany toward medical data donation for research purposes. It was conceptualized and carried out against the background of almost 20 years of experience, by TMF, of negotiating with data protection authorities and ethics committees in the different German federal states. The goal of these consultations, namely a uniform broad consent for all states, turned out to be a critical prerequisite for the German Medical Informatics Initiative (MII), launched in 2017 by the federal government and coordinated by TMF. The 2019 survey on data donation also marked the beginning of a comprehensive dialogue between the German university hospitals, represented by the MII, and patient organizations as well as self-help groups, which are well organized in Germany and have a strong interest in medical research. The survey was designed as a standardized telephone questionnaire of a representative population sample (n = 1006) and was conducted by the German Forsa Institute between 13 and 18 August 2019. The study sample was drawn from Forsa’s population-representative survey panel “forsa.omninet”. The survey included three questions: (i) attitude toward data donation from digital health records, (ii) possible beneficiaries of data donation, and (iii) duration of research use after data donation.
Of the 1006 participants, a majority of 793 (78.8%) approved donation of data from their digital health records as well as sharing of these data with third parties for medical research, anonymously and free of charge. A small minority of participants disagreed or strongly disagreed (n = 204, 20.3%; Fig. 2) mainly because of worries about data security (n = 122, 58.8%). Only nine participants (0.9%) were indifferent toward the issue (“do not know”).
A vast majority of those who approved data donation would allow their data to be used by scientists from universities and public research institutions (n = 767, 96.7%), but only a minority (n = 132, 16.6%) of mostly younger respondents would also share their health data with scientists from industry and private institutions, including pharmaceutical and biotech companies (Fig. 3).
When asked for how long their personal health data should be available for medical research after data donation, a majority agreed to long-term data use. Thus, 440 of the 793 approving participants (55.5%) responded that their data could be used for an unlimited period of time whereas 133 (16.8%) wanted to see research limited to the next five years. To be asked for re-consent for each individual research project was preferred by 212 individuals (26.7%).
We observed significantly better understanding of the broad consent issues in the Dutch survey, compared to the 2016 study in Germany , likely due to the overall higher educational level in the Dutch sample, which may point toward a lack of comparability as a limitation of our current study. However, public awareness of the issues of secondary data use for medical research has improved in the recent past (e.g., ). Therefore, the different levels of comprehension could also be due to the fact that the topic has received more public attention over the last three years in The Netherlands, thereby resulting in better prior knowledge among the Dutch patients. In any case, it is not likely that the Dutch had better prior knowledge because, of those Dutch patients who did not change their opinion (n = 3562) upon reading the broad consent brochure, only 21.1 % (n = 751) claimed to have known the information beforehand. Another possible cause of the different understanding in different countries may be that the documents were translated from German into slightly easier Dutch language. This explanation receives further credit from our 2016 study in Germany  where linguistic simplification improved the understanding of the information material as well.
As a means to legitimize the secondary research use of medical data, broad consent policies are becoming adopted more and more widely in Germany and The Netherlands. At the same time, however, the creation of ever more complex infrastructures for data integration from different sources, as currently exemplified by the German Medical Informatics Initiative, calls for further development of the consent process. Although there seems to be wide expert agreement on the preconditions for responsible and, hence, ethically acceptable data sharing, including the protection of privacy, minimization of risks, data security, transparency as well as public information and trust , little is known about the attitude of the data subjects themselves [31, 33].
The two surveys reported upon here provide further insight into the attitude of data subjects in Germany and The Netherlands towards comprehensive secondary research use of their data, either under a broad consent opt-in policy or an explicit opt-out policy (“data donation”). In both surveys, we observed a strong positive attitude towards supporting medical research in general, corroborating previous studies . This positive attitude, which mainly reflects the human values of benevolence and security, should form a robust basis for reconciling the rights of data subjects with the needs of data-driven medical research.
The general concordance of their outcome notwithstanding, there are some notable differences between the German and Dutch studies. Whereas the German patients were approached in the waiting rooms of a university hospital, the Dutch study was web-based. In addition to linguistic and educational factors (see above), the significantly better understanding of the broad consent approach by Dutch patients may thus be attributable partly to these different interview settings.
When patients are expecting a serious diagnosis or waiting for an unpleasant or even dangerous intervention, they may simply not be receptive to the information provided. This calls for means to inform patients in a situation that is less stressful and burdensome for them, i.e., before they actually become patients. Our findings support the view that informed data donation in a non-clinical context may be an acceptable alternative type of legitimization for the secondary research use of medical data. In fact, the 2018 German patient survey and, even more so, the recent population survey by TMF revealed a generally positive attitude towards data donation for research by way of an opt-out policy, in line with other reports .
Both surveys also revealed that, whereas universities and public research institutions seem to enjoy great public trust, data use for commercial research of data is seen more critically by patients and the general population alike. This result corroborates previous work framing the participation in data-rich research as an activity geared towards solidarity and the common good . Moreover, transparency and public involvement are essential for the general acceptance of such research , and the failure to implement the “care.data” program in England, aimed at extracting anonymised patient data from GP records in order to build a central nationwide database, is proof to the point in this regard . In addition to the lack of patient awareness of the program, the fact that the database was intended to be accessible by third parties, including pharmaceutical companies, was a major cause of serious public concerns . In the discussions why “care.data” failed, and which future lessons could be learned from this setback, particular attention was paid to the concept of “social license”, whereby public acceptance of health research rests on its status as a socially valuable service to the public good . Such “social licenses” for the research use of patient data cannot be taken for granted but need to be acquired, particularly by the private sector, taking into account the diverse patient and public values, needs and interests .
In summary, we observed a generally positive public attitude in Germany and The Netherlands towards data donation for medical research, even without explicit consent. At the same time, however, we recognized considerable reluctance towards research use of the donated data by commercial institutions. Such resentments are not only difficult to take into account in real life, where the collaboration between publicly funded and commercial research is a reality also encouraged by many funding organizations. It also fails to acknowledge the critical importance of economic activity for societal progress. To overcome this incongruity in public attitude, we postulate that more widespread public discussion and education about the role of industry in medical research is necessary, particularly in the context of data donation.
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The authors gratefully acknowledge the invaluable support by all academic and non-academic staff of the CCIM, University Hospital Schleswig-Holstein Campus Kiel, and of the Patiëntenfederatie Nederland. Special thanks are due to all survey participants.
TMF e.V. is funded by the German Federal Ministry of Education and Research (funding reference number 01ZZ1805).
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The authors declare that they have no conflict of interest.
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The original online version of this article was revised: The article “Secondary research use of personal medical data: attitudes from patient and population surveys in The Netherlands and Germany”, written by Gesine Richter, et al., was originally published electronically on the publisher’s internet portal on 1 October 2020 without open access. With the author’ decision to opt for Open Choice the copyright of the article changed on 21 September 2021 to © Author(s) 2020 and the article is forthwith distributed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0.
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Richter, G., Borzikowsky, C., Lesch, W. et al. Secondary research use of personal medical data: attitudes from patient and population surveys in The Netherlands and Germany. Eur J Hum Genet 29, 495–502 (2021). https://doi.org/10.1038/s41431-020-00735-3
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