TY - JOUR N2 - The supply of and market demand for assistive products (APs) are complex and influenced by diverse stakeholders. The methods used to collect AP population-level market data are similarly varied. In this paper, we review current population-level AP supply and demand estimation methods for five priority APs and provide recommendations for improving national and global AP market evaluation. Abstracts resulting from a systematic search were double-screened. Extracted data include WHO world region, publication year, age-groups, AP domain(s), study method, and individual assessment approach. 497 records were identified. Vision-related APs comprised 65% (n = 321 studies) of the body of literature; hearing (n = 59), mobility (n = 24), cognitive (n = 2), and studies measuring multiple domains (n = 92) were proportionately underrepresented. To assess individual AP need, 4 unique approaches were identified among 392 abstracts; 45% (n = 177) used self-report and 84% (n = 334) used clinical evaluation. Study methods were categorized among 431 abstracts; Cross-sectional studies (n = 312, 72%) and secondary analyses of cross-sectional data (n = 61, 14%) were most common. Case studies illustrating all methods are provided. Employing approaches and methods in the contexts where they are most well-suited to generate standardized AP indicators will be critical to further develop comparable population-level research informing supply and demand, ultimately expanding sustainable access to APs. ID - discovery10141189 UR - https://doi.org/10.1080/10400435.2021.1957039 PB - TAYLOR & FRANCIS INC JF - Assistive Technology A1 - Danemayer, J A1 - Boggs, D A1 - Polack, S A1 - Smith, EM A1 - Ramos, VD A1 - Battistella, LR A1 - Holloway, C KW - Rehabilitation KW - assessment KW - auditory impairment KW - mobility KW - outcomes KW - service delivery KW - visual impairment KW - VISION IMPAIRMENT KW - DEVICE USE KW - SUBSTITUTABILITY KW - BLINDNESS TI - Measuring assistive technology supply and demand: A scoping review Y1 - 2021/12/01/ AV - public VL - 33 SP - 35 EP - 49 N1 - © 2021 The Author(s). Published by Taylor & Francis Group, LLC on behalf of the RESNA. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ER -