Ally R. Avery

Leveraging Google location history data to assess the impact of activities, locations, and time spent in green space on mental health during the COVID-19 pandemic

Solmaz Amiri, Ofer Amram, Funso Oje, Ally R. Avery et autres

The COVID-19 pandemic led to stay-at-home orders, resulting in sudden changes in movement patterns and social restrictions that impacted mental health. This study examined changes in individual behaviors during the pandemic using detailed smartphone-based activity data and determined whether behaviors and green …

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Quantifying the U.S. obesogenic environment and its quasi-causal association with obesity: a cross-sectional twin study

Bram J. Berntzen, Ally R. Avery, Joline W.J. Beulens, Jeroen Lakerveld et autres

Obesity is a chronic disease that develops via complex interactions between human biology and the obesogenic environment. This study aimed to develop a high-resolution index of combined obesogenic neighborhood exposures in the U.S. and examine its association with body mass index (BMI), …

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Using low-cost sensors and GPS to assess spatiotemporal variations in personal exposure to PM2.5 in the Washington State Twin Registry

Ningrui Liu, Ally R. Avery, Elena Austin, John Scott Meschke et autres

Epidemiological studies typically rely on exposure assessments based on ambient PM 2.5 concentrations at participants’ home addresses. However, these approaches neglect personal exposures indoors and across different non-residential microenvironments. To address this problem, our study combined low-cost sensors and GPS to conduct …

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Investigating Links Between Urban Residential Streetscapes and Physical Activity Using Deep Learning of Google Street View Imagery Applied to the Washington State Twin Registry

Bethany D. Williams, Ofer Amram, Andrew Larkin, Glen E. Duncan et autres

The evidence linking urban greenspace to individual's physical activity (PA) levels is mixed. This study examines relationships between street-level and satellite-derived greenspace measures with PA outcomes. Our sample included 7855 adult twins enrolled in the Washington State Twin Registry from 2009 to …

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Unfinished business: formaldehyde exposure from uniforms and the case for U.S. textile regulation

Pamela J. Anderson-Mahoney, Jenny Brook, Amy Rock Wohl, Jennifer Ewald et autres

INTRODUCTION: Formaldehyde is a known human allergen and irritant, yet health risks from exposure via treated textiles - especially occupational uniforms - remain underrecognized. This article combines a review of international literature and public data on formaldehyde sensitization rates and regulatory approaches …

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Longitudinal Association Between Walkability and Physical Activity in Twins

Glen E. Duncan, Ally R. Avery, Matthew J. D. Pilgrim, Ofer Amram et autres

INTRODUCTION: Research has focused on the built environment (e.g., neighborhood walkability) that supports or hinders physical activity because it is potentially modifiable. This study investigated the associations between changes in neighborhood walkability and changes in physical activity in an adult twin cohort. …

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Using low-cost sensors and GPS to assess spatiotemporal variations in personal exposure to PM 2.5 in the Washington State Twin Registry

Ningrui Liu, Ally R. Avery, Elena Austin, John Scott Meschke et autres

Epidemiological studies typically rely on exposure assessments based on ambient PM 2.5 concentrations at participants' home addresses. However, these approaches neglect personal exposures indoors and across different non-residential microenvironments. To address this problem, our study combined low-cost sensors and GPS to conduct …

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Association between neighborhood walkability and physical activity in a community-based twin sample

Glen E. Duncan, Philip M. Hurvitz, Bethany D. Williams, Ally R. Avery et autres

We investigated associations between neighborhood walkability and physical activity using twins (5477 monozygotic and same-sex dizygotic pairs) as "quasi-experimental" controls of genetic and shared environment (familial) factors that would otherwise confound exposure-outcome associations. Walkability comprised intersection density, population density, and destination accessibility. …

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Smartphone Google Location History: A Novel Approach to Outdoor Physical Activity Research

Ofer Amram, Olufunso Oje, Andrew Larkin, Kwadwo Boakye et autres

BACKGROUND: Outdoor physical activity (PA) is an important component of overall health; however, it is difficult to measure. Passively collected smartphone location data like Google Location History (GLH) present an opportunity to address this issue. OBJECTIVES: To evaluate the use of GLH …

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Epigenome-wide association study of systemic effects of obesity susceptibility in human twins

Glen E. Duncan, Ally R. Avery, Millissia Ben Maamar, Eric E. Nilsson et autres

The current study was designed to use an epigenome-wide association approach (EWAS) to identify potential systemic DNA methylation alterations that are associated with obesity using 22 discordant twin pairs. Buccal cells (from a cheek swab) were used as a non-obesity relevant purified …

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Cross-Sectional Study of Location-Based Built Environments, Physical Activity, Dietary Intake, and Body Mass Index in Adult Twins

Glen E. Duncan, Feiyang Sun, Ally R. Avery, Philip M. Hurvitz et autres

We examined relationships between walkability and health behaviors between and within identical twin pairs, considering both home (neighborhood) walkability and each twin’s measured activity space. Continuous activity and location data (via accelerometry and GPS) were obtained in 79 pairs over 2 weeks. …

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Quasi-causal associations between chronotype and post-traumatic stress disorder symptoms: A twin study

Catherine McCall, Eric N. Turkheimer, Siny Tsang, Ally R. Avery et autres

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