Assistive devices non-use, abandonment, or non-adherence? Toward standard terminology for assistive devices outcomes.

For individuals with disabilities, failure to use prescribed assistive technology devices (ATDs) according to professional recommendations can have detrimental health consequences. The literature has employed various terms to describe this phenomenon such as nonuse, abandonment, and non-adherence to characterize this behavior, lacking clear and standardized definitions. Consistent use of a standardized language is critical for advancing research in this area. This study aims to identify and describe the concepts related to the failure to use prescribed ATDs, along with the associated contexts, and proposes a framework for standardizing terminology in this domain. A narrative literature review encompassing studies from inception to June 2023 was conducted to elucidate these concepts. Out of 1029 initially identified articles, 27 were retained for in-depth analysis. The review unveiled a significant inconsistency in the use of terms like nonuse, abandonment, noncompliance, and non-adherence. Some articles even employed these terms interchangeably without clear definitions. Only 10 of the 27 reviewed articles provided definitions for the terminology they used. This highlights the crucial need for adopting valid conceptual models to select appropriate terms. Researchers are strongly encouraged to furnish operational definitions aligned with theoretical models and relevant to their research context to advance this field consistently.