Publications
Papers
Machine learning derived physical activity in preschool children with developmental coordination disorder
Letts, E, King-Dowling, S, Kwan, MYW, Obeid, J, Cairney, J, Trost, SG. Developmental Medicine & Child Neurology: 1-8. 2024. https://doi.org/10.1111/dmcn.16186
Available here
Return Discussions to Reduce Missing Incidents in Persons Living with Dementia: Findings from a Scoping Review and Individual Interviews
Letts, E, McLennan, L, Daum, C, Conway, C, Neubauer, NA, Miguel-Cruz, A, Liu, L. Canadian Journal on Aging / La Revue canadienne du vieillissement: 1-12. 2024. https://doi.org/10.1017/S0714980824000382
Available here
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
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
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
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
Presentations
Influence of Epoch on 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] NASPEM 2024, August 9, 2024 (Louisville, USA)
🏆 1st Place Student Oral Presentation
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] ICAMPAM 2024, June 20, 2024 (Rennes, France)
🏆 Best Oral Talk Runner Up
Testing the consensus method for sedentary time from a hip-worn accelerometer.
Letts*, E, Montoye, AK, Clevenger, K. [Oral presentation] ICAMPAM 2024, June 19, 2024 (Rennes, France)
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)
Development of a preliminary machine learning model to detect toddler physical activity from a hip-worn accelerometer.
Letts, E*, 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
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
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
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)
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
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
The More You Share, The More You Learn: Creating an Openly Available Toddler Activity Measurement Tool
Sherman Centre for Digital Scholarship Blog
Read the full blog post here
Measuring Toddlers' Moves: McMaster GradFlix 2023
Toddlers on the Move: McMaster GradFlix 2022