Publications

Papers

Accelerometer techniques for capturing human movement validated against direct observation: A scoping review

Letts, E, Jakubowski, JS, King-Dowling, S, Clevenger, KA, Kobsar, D, Obeid, J. Physiological Measurement: 1-61. 2024. https://doi.org/10.1088/1361-6579/ad45aa

Available here

Interactive visualizations available here

Risk factors associated with missing incidents among persons living with dementia: A scoping review

Perez, H, Miguel Cruz, A, Neubauer, N, Daum, C, Comeau, AK, Marshall, SD, Letts, E, Liu, L. Canadian Journal on Aging / La Revue canadienne du vieillissement: 1-15. 2024. https://doi.org/10.1017/S0714980823000776

Available here

Investigating the validity of the Ages and Stages Questionnaire to detect gross motor delays in a community sample of toddlers: A cross-sectional study

Letts, E, King-Dowling, S, Calotti, R, Di Cristofaro, N, Obeid, J. Early Human Development: 187. 2023. https://doi.org/10.1016/j.earlhumdev.2023.105882

Available here

Cost effectiveness of physiotherapy services for chronic condition management: A systematic review of economic evaluations conducted alongside randomized controlled trials

Smith-Turchyn, J, Richardson, J, Sinclair, S, Xu Y, Choo, S, Gravesande, J, Lai, A, Letts, E, Masrur, M, Morgan, A, Petrusevski, C, Edward, H, Xie, F.  (2023) Physiotherapy Canada: advance access, 1-24. https://doi.org/10.3138/ptc-2022-0016

Available here

PRISMA flow chart for scoping review

A scoping review of measures examining the environments of persons with neurodevelopmental disorders in a supported housing setting

Letts, E, Freeman, M, Gambino, C, & Di Rezze, B. (2022) International Journal of Developmental Disabilities: ahead-of-print, 1-13. https://doi.org/10.1080/20473869.2022.2099508

Available here

cropped chart with 4 coloured signmoidal lines

Evaluating the Effect of Semantic Congruency and Valence on Multisensory Integration

Letts, E, Basharat, A, & Barnett-Cowan, M. (2022). Multisensory Research: 35(4), 309-334. https://doi.org/10.1163/22134808-bja10073

Available here

Data set available here

Presentations

Preliminary machine learning models to detect physical activity and sedentary time from a hip-worn accelerometer in toddlers.

Letts, E*, King-Dowling, S, Di Cristofaro, N, Tucker, T, Cairney, J, Timmons, BW, Obeid, J. [Oral presentation] McMaster Child Health Research Day, McMaster University, Department of Pediatrics, March 27, 2024 (Hamilton, Canada)

🏆 Top Oral Presentation Award

Development of a preliminary machine learning model to detect toddler physical activity from a hip-worn accelerometer.

Letts, E*, Sara King-Dowling, S, Di Cristofaro, N, Tucker, P, Cairney, J, Timmons, BW, Obeid, J. [Poster presentation]. ActiGraph Digital Data Summit 2024, February 27, 2024 (Pensacola, United States)

Models for systematically conducting discussions after a missing person living with dementia is found: Implementation in Canada.

Daum, C*, McLennan, L, Letts, E, Conway, C, Liu, L. [Oral presentation] 52nd Annual Scientific and Education Meeting, Canadian Association on Gerontology, October 27, 2023 (Toronto, Canada)

An exploratory factor analysis of risk factors associated with dementia-related missing incidents from the perspective of stakeholders.

Perez, H, Miguel-Cruz, A*, Daum, C, Rutledge, E, Faller-Saunders, A, Letts, E, Liu, L. [Oral presentation] 52nd Annual Scientific and Education Meeting, Canadian Association on Gerontology, October 27, 2023 (Toronto, Canada)

Validation of a scale to assess an individual living with dementia’s risk of getting lost.

Perez, H, Letts, E*, Daum, C, Miguel-Cruz, A, Liu, L. [Demo presentation] 2023 Age-Well Conference, October 24, 2023 (Toronto, Canada)

Preschooler Physical Activity Classification Using Ankle Accelerometry and Machine Learning. 

Letts, E*, Trost, S, Ahmadi, M. [Oral presentation] Paediatric Work Physiology 2023, September 6-9, 2023 (Swansea, Wales)

Abstract available here

Epoch length selection for accelerometer measurement of physical activity and sedentary time in toddlers.

Letts, E*, King-Dowling, S, Di Cristofaro, N, Obeid, J. [Poster presentation]. ActiGraph Digital Data Summit 2022, November 14, 2022 (Pensacola, United States)

Returned Missing Persons with Dementia: What Role Can First Responders and Service Providers Play?

McLennan, L, Letts, E, Daum, C*, Conway, C, Liu, L. [Poster presentation] 2022 GSA Annual Scientific Meeting, Gerontological Society of America (GSA), November 5, 2022 (Indianaoplis, United States)

Perspectives on the Risk Factors Associated with Missing Incidents in Persons Living with Dementia.

Perez, H, Miguel-Cruz, A, Daum, C*, Letts, E, Rutledge, E, Liu, L. [Poster presentation] 2022 GSA Annual Scientific Meeting, Gerontological Society of America (GSA), November 4, 2022 (Indianaoplis, United States)

Risk Factors Associated with Dementia-Related Missing Incidents: Perspectives of Persons Living with Dementia and Care Partners.

Perez, H*, Miguel-Cruz, A, Daum, C, Letts, E, Rutledge, E, Mark, M, Liu, L. [Oral presentation] The 51st Annual Scientific and Education Meeting, Canadian Association on Gerontology, October 22, 2022 (Regina, Canada)

When a missing person with dementia returns: What role can first responders and service providers play? 

McLennan, L, Letts, E, Daum*, C, Conway, C, Liu, L. [Poster presentation] The 51st Annual Scientific and Education Meeting, Canadian Association on Gerontology, October 21, 2022 (Regina, Canada)

Risk factors for getting lost in persons living with dementia: A conceptual framework.

Perez, H*, Miguel-Cruz, A, Daum, C, Letts, E, Rutledge, E, Faller-Saunders, A, Liu, L.  [Demo presentation] 2022 Age-Well Conference, October 18, 2022 (Regina, Canada)

Investigating the relationship of daily physical activity and social development in toddlers.

Letts, E*, King-Dowling, S, Di Cristofaro, N, Obeid, J. [Oral presentation]. NASPEM 2022: The Child’s Right to be Fit, August 4, 2022 (Saskatoon, Canada)

Abstract available here

Effect of accelerometer epoch length on physical activity and sedentary time in toddlers.

Letts, E*, King-Dowling, S, Di Cristofaro, N, Obeid, J. [Virtual poster presentation]. ICAMPAM 2022, June 22, 2022 (Online Conference)

Abstract available here

toddler infront of wooden blocks wearing an accelerometer

Investigating the validity of accelerometer-based measures of physical activity and sedentary time in toddlers.

Letts, E*, King-Dowling, S, Di Cristofaro, N, Timmons, BW, Cairney, J, Tucker, T, Obeid, J. [Oral presentation] Child Health Research Day, McMaster University, Department of Pediatrics, March 30, 2022 (Online Conference)

Risk Factors of Going Missing in People Living With Dementia: A Scoping Review.

Perez, H*, Miguel-Cruz, A, Daum, C, Marshall, S, Letts, E, Liu, L. [Poster presentation] The Gerontological Society of America (GSA) 2021 Annual Scientific Meeting, November 13, 2021 (Online Conference)

View the abstract here

title slide of a presentation entitled "Return home interviews for older adults with dementia: A scoping review"

Return home interviews for missing older adults living with dementia: A scoping review. 

McLennan, L*, Letts, E, Daum, C, Miguel-Cruz, A, Neubauer, N, Liu, L. [Paper presentation] The Gerontological Society of America (GSA) 2021 Annual Scientific Meeting, November 11, 2021 (Online Conference)

View the abstract here

image of a presentation slide with 4 main images

Four factors associated with critical wandering in persons with dementia: a scoping review

Perez, H*, Miguel-Cruz, A, Daum, C, Marshall, S, Letts, E, Liu, L. [Oral presentation] Canadian Association on Gerontology Conference 2021, October 22, 2021 (Online Conference)

5 small images showing main results of study: 5 risk factors the predict the risk of going missing or getting lost for persons living with dementia

The risk of going missing in persons living with dementia: A scoping review.

Perez, H*, Letts, E, Marshall, S, Neubauer, N, Daum, C, Miguel-Cruz, A, Liu, L. [Twitter presentation] AGE-WELL EPIC Conference 2021.  June 8, 2021  

View this presentation here

Image contains search hits and inclusion criteria. The academic search had 19 databases, 1493 hits, and 11 included. The grey literature search used the internet and website keyword searching and included 94 sources. Inclusion criteria included any language, any year, any publication type, any research method, and terms similar to RHIs, missing person(s), etc.

Return home interviews for missing older adults living with dementia: A scoping review.

McLennan, L, Letts, E*, Daum, C, Miguel-Cruz, A, Neubauer, N, Liu, L. [Twitter presentation] AGE-WELL EPIC Conference 2021. June 1, 2021  

View this presentation here

 

Other works



Measuring Toddlers' Moves: McMaster GradFlix 2023



Toddlers on the Move: McMaster GradFlix 2022