Chelsea Christie

• Doctor of Philosophy
• University of Toronto

The COVID-19 pandemic has led to an increase in the prevalence of substance use presentations. This study aims to assess the impact of the COVID-19 pandemic on the rate of primary care visits for substance use including tobacco, alcohol, and other drug use among primary care patients in Ontario, Canada. Diagnostic and service fee code data were col...

Background There has been conflicting evidence on the association between multimorbidity and blood pressure (BP) control. This study aimed to investigate this associations in people with hypertension attending primary care in Canada, and to assess whether individual long-term conditions are associated with BP control. Methods This was a cross-sect...

Background. There has been conflicting evidence on the association between multimorbidity and blood pressure (BP) control. This study aimed to investigate this associations in people with hypertension attending primary care in Canada, and to assess whether individual long-term conditions are associated with BP control. Methods. A cross-sectional st...

The neighbourhood built environment can support the physical activity of adults regardless of their individual-level socioeconomic status. However, physical activity supportive (walkable) neighbourhoods may not be accessible to those with lower incomes if homes in walkable neighbourhoods are too expensive. The objectives of this study were: 1) to e...

Background There is increasing evidence demonstrating the importance of the neighbourhood built environment in supporting physical activity. Physical activity provides numerous health benefits including improvements in health-related fitness (i.e., muscular, cardiorespiratory, motor, and morphological fitness). Emerging evidence also suggests that...

Background Although socioeconomic status (SES) has been shown to modify associations between the neighborhood built environment and physical activity, contradictory results exist. Objectives of this cross-sectional and longitudinal analysis were to: 1) examine whether overall neighborhood walkability and specific built characteristics were associat...

Background Walking is associated with the built environment, however, this association may be biased by residential self-selection. This study examined how walking duration changed with residential relocation, while accounting for unbalanced covariates that may contribute to residential self-selection, using two different propensity score inverse p...

Background Few studies have investigated potential links between the built environment and health-related fitness, even though there is some evidence linking neighbourhood built environments to physical activity behaviors and chronic health conditions. Methods Following PRISMA guidelines eight databases were searched from inception to August 2020...

Residential mobility is linked to higher incidence of cardiovascular disease (CVD) and mortality. A mechanism by which residential relocation may impact health is through the disruption of social networks. To examine whether moving to a new city is associated with increased CVD risk and whether the extent to which movers rebuild their social networ...

Objective: The objective of this review is to summarize the current literature on the association between the neighborhood built environment and components of health-related fitness. The findings may be useful for policy-makers and health professionals to inform the development of health-supportive neighborhood built environments. Introduction:...

Objective To synthesize literature on the associations between the built environment and physical activity among adults with low socio-economic status (SES) in Canada.Methods Using a pre-specified study protocol (PROSPERO ID: CRD42019117894), we searched seven databases from inception to November 2018, for peer-reviewed quantitative studies that (1...

Few Canadian studies have examined whether or not associations between neighbourhood walkability and physical activity differ by sex. We estimated associations between perceived neighbourhood walkability and physical activity among Canadian men and women. This study included cross-sectional survey data from participants in 'Alberta's Tomorrow Proje...

Two studies document the existence and correlates of a widespread social belief, wherein individuals who have recently moved to a new social environment see their peers as more socially connected than they themselves are. In Study 1, the prevalence of this belief was documented in a large sample of first-year students (N = 1,099). In Study 2, the p...

We argue that natural selection operates on emotional and cognitive capacities supporting the subjective experience of sentiments, rather than on discrete sentiments themselves. We support this argument by examining the case of oxytocin in relation to the sentiment of love. We also explore future directions for health psychology research that inclu...

It is well established that the amount eaten by other people affects how much we eat, but unanswered questions exist regarding how much the food choices of other people affect the types of food that we choose. Past research on food choice modeling has primarily been conducted in controlled laboratory situations and has focused on snack foods. The c...

This article was written as a continuation of the debate between Mills (2012) and Bemister and Dobson (2011, 2012) on record-keeping practices, specifically informing clients of their right to access their records and taking notes during sessions. Prior research has found that clients react positively to being shown their records, but no studies ha...