Facilitators, barriers, and recommendations related to the informed consent of Marshallese in a randomized control trial
Research Article
Rachel S Purvis, Leah R Eisenberg, Christopher R Trudeau, Christopher R Long, Pearl A McElfish
Clinical Ethics, 2 February 2020
Abstract
Background
The Pacific Islander population is the second fasting growing population in the United States and Arkansas is home to the largest Marshallese population in the continental US. The Marshallese community have significant health disparities with high prevalence of diabetes, heart disease, and obesity compared to the general US population. Using a community-based participatory research approach, researchers and Marshallese community stakeholders identified diabetes as the top health issue for research.
Methods
From 2014 to 2018, a randomized control trial was conducted comparing standard diabetes management education with a culturally adapted family model of standard diabetes management education delivered in participants’ homes by Marshallese community health workers and certified diabetes educators. Interviews were held with Marshallese participants to document their experiences with and perceptions of the informed consent process for this randomized control trial.
Results
Participants provided feedback on the process of enrolling in the study, describing barriers and facilitators to giving informed consent from their perspective, and offering recommendations for improving the informed consent process.
Conclusion
Findings suggest that informed consent with underserved communities, including immigrant and migrant populations who do not speak English or have limited English proficiency, is possible, and that using a community-based participatory research approach can help facilitate the informed consent process.

Translations of informed consent documents for clinical trials in South Africa: are they readable? [MA DISSERTATION]
Makiti Thelma Leopeng
University of Cape Town, Maternal and Child Health in the Department of Pediatrics and Child Health, February 2019
Open Access
Abstract
Introduction
Obtaining Informed consent is an ethical prerequisite for enrollment in clinical research. There is a perception that Informed consent documents used in biomedical research are lengthy, overly complex and above the reading capability of typical research participants. In South Africa, ethical committees regulating research on human participants (HRECs) are mandated by the Department of Health’s National Health Research Ethics Council’s (NHREC) guidelines to ensure that researchers have made special considerations for vulnerable groups when conducting research. This includes considerations made for populations with low literacy. For example, the Standard Operating Procedure (SOP) of the University of Cape Town’s Human Research Ethics Committee (UCTHREC), requires that the language used in Informed consent documents should be directed at a reading level of grade 6 to 8 and that common, everyday words should be used rather than complex language syntax. The HREC expects researchers to translate the approved English version documents into local languages such as isiXhosa and Afrikaans. Since ethics committee focus approval on the English language consent documents and only acknowledge translated versions, a potential gap in this process is whether the translated versions meet the same required readability levels. This study aims to investigate whether translated versions of English language informed consent documents used at a single busy clinical research site are readable and meet the readability levels specified by UCTHREC. 14
Methodology
A quantitative descriptive statistical design was used to explore readability levels of informed consent documents used at a single clinical research facility based in a semi-rural community. Informed consent documents approved by UCTHREC over the past thirteen years (2004 to 2017) that met the inclusion criteria were analysed for readability. The LIX readability test tool was used to calculate readability scores and the levels of reading difficulty. These scores were then matched to a grade level conversion chart to determine the equivalent number of education years required to be able to easily understand the information. Readability levels were determined for isiXhosa and Afrikaans translations of the documents and compared to the levels of the English document.
Results
The results indicate that informed consent documents used at this single clinical research facility, independent of language type, are difficult to read. A total of 259 sub-sections of informed consent documents from 10 different studies were analysed. The analysis showed that informed consent documents were classified as “very difficult to read” according to the LIX readability tool in a large proportion of English, isiXhosa and Afrikaans languages: 41 (16%), 255 (98%), and 85 (33%) of informed consent sections respectively. Of all the subsections of English, isiXhosa and Afrikaans documents respectively, 98 (38%), 0 (0%) and 126 (49%) were classified as “difficult to read”, while 79 (31%), 3 (1%) and 38 (15%) were found to have an “average” readability level. Twenty eight (11%), 1 (0%) and 10 (4%) were found to be “easy to read” and 13 (5%), 0 (0%) and 0 (0%) had a “very easy” readability level. The mean LIX readability scores across English, isiXhosa, and Afrikaans languages were respectively 42.27 (95% CI 41.20 – 43.34) corresponding to a readability level of “average”, 74.64 (95% CI 73.79-75.49), corresponding to “very difficult to read” and 46.73 (95% CI 15 45.66-47.8) “difficult to read”. These findings suggest a high level of difficulty in reading of the text in the Informed consent documents.
Conclusion
Translations of Informed consent documents used at a single busy clinical research site are difficult to read and are written at high school to tertiary reading level. These reading levels are above the recommended level prescribed by the site’s research ethics committee (UCTHREC). Local ethics committees should employ more stringent guidelines and checks to ensure readability of translated informed consent documents. Researchers and Sponsors should include readability outcomes in the design and with submissions of new protocols.