Systematic review and content analysis of Australian health care substitute decision making online resources
Authors: Tran Julien , Sellars Marcus , Nolte Linda , White Ben P. , Sinclair Craig , Fetherstonhaugh Deirdre , Detering Karen 
Published: January 2021

Objective Substitute decision makers (SDMs) can be required to make difficult health care decisions on behalf of individuals lacking decision-making capacity. Online resources may be helpful in preparing and supporting SDMs. This study systematically explored the frequency, content and usability of Australian online resources containing health care substitute decision-making content written for consumers. Methods In April 2019, Google searches were conducted to identify online resources containing health care substitute decision-making content for consumers. Analysis comprised mapping resource characteristics, including target audience (individual-specific, SDM-specific, mixed) and thematic analysis of content. Usability was assessed using the Patient Education Materials Assessment Tool (PEMAT). Results Of the 61 resources identified, the most frequent were webpages (57%), individual-specific (43%) and those produced by government organisations (31%). Only 15 resources (24%) were written for SDMs. Content themes identified were: defining the scope of the SDM role (93%); recommended traits or characteristics of SDMs (80%); instructions or principles regarding standards for decision making (75%); duties of SDMs (70%); and supports (46%), rights (16%), barriers (8%) and benefits (5%) for SDMs. The median (interquartile range) PEMAT scores (out of 100) were 66 (27) for understandability and 60 (55) for actionability. Conclusions SDMs have a vital role in making decisions for people lacking decision-making capacity. Online resources are a potential source of information and support for SDMs in Australia. This study identified key gaps in availability, content and usability of existing SDM resources, highlighting the need for the further development of such resources. We suggest that future resource development include SDMs in the design and evaluation processes. What is known about the topic? An aging population and a greater need for decisions to be made on behalf of others who lack capacity means that health care substitute decision-making is occurring more frequently. Appointing one or more SDMs may occur as part of the advance care planning process. However, being a healthcare SDM can be difficult and stressful. People frequently use the Internet to search for health-related information. What does this paper add? This paper systematically examined the frequency, content and usability of existing Australian online resources with substitute decision-making content written for a consumer audience in English, and identified key gaps in online resources available to support SDMs. What are the implications for practitioners? Although there is a need for resources written for SDMs, authors of online resources need to pay careful attention to the purpose, content and usability of their resource. Future resource development should include input from SDMs and involve them in evaluation to assess whether the resources meet target audience needs.