6 results on '"McCormack, Gavin R."'
Search Results
2. Test–retest Reliability and Construct Validity of an Online and Paper Administered Physical Activity Neighborhood Environment Scale (PANES).
- Author
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Frehlich, Levi, Blackstaffe, Anita, and McCormack, Gavin R.
- Subjects
CONFIDENCE intervals ,STATISTICAL correlation ,RESEARCH methodology ,BUILT environment ,RESIDENTIAL patterns ,STATISTICAL reliability ,RESEARCH methodology evaluation ,PHYSICAL activity ,INTRACLASS correlation - Abstract
The Physical Activity Neighborhood Environment Scale (PANES) has been used internationally; however, PANES properties have not been assessed in all geographical contexts. Our objectives were to assess the reliability and validity of an online and paper version of the PANES in Canadian adults. Reliability was estimated using intraclass correlation coefficients (ICC), percent of overall agreement (p
0 ) and Cohen's Kappa coefficient (κ). Lower 95% confidence interval (CI) ICC ranged from 0.10 to 0.70. Lower 95%CI for κ statistics ranged from −0.20 to 0.64 and p0 ranged from 80.1% to 95.7%. Cronbach's alpha coefficients (α) estimated internal consistency of the PANES (α = 0.58 for the paper version and α = 0.55 for the online version). Mean scores for the PANES Built Environment Index (BEI) significantly differed by neighborhood street pattern (p <.05). The PANES administrated via paper or online provides reliable overall agreement and valid estimates of the self-reported neighborhood built environment supportiveness of physical activity. [ABSTRACT FROM AUTHOR]- Published
- 2020
- Full Text
- View/download PDF
3. Identifying motorist characteristics associated with youth bicycle-motor vehicle collisions.
- Author
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Pitt, Tona M., Nettel-Aguirre, Alberto, McCormack, Gavin R., Howard, Andrew W., Rowe, Brian H., and Hagel, Brent E.
- Subjects
MOTOR vehicle driving ,MOTOR vehicle drivers ,MOTOR vehicles ,POLICE vehicles ,TRUCK driving ,POLICE reports ,LOGISTIC regression analysis - Abstract
Objective: The objective of this study was to identify driver characteristics associated with youth bicycle-motor vehicle collisions in Alberta, Canada. Methods: Edmonton and Calgary police collision report data from the years 2010-2014 were used. From these data, motor vehicle collisions involving youth (<18 years old) were identified (cases). The controls were drivers who, over the same period, were involved in separate motor vehicle-only collisions but deemed not at fault using an automated culpability analysis. Control selection used the quasi-induced exposure method, assuming that not-at-fault drivers in collisions are representative of the typical driver (source population). Descriptive statistics, including proportions, medians, and interquartile ranges (as appropriate) were used to describe the characteristics of the case and control drivers. Purposeful variable selection techniques were used to inform multivariable logistic regression models and results are presented as adjusted odds ratios (aORs) and 95% confidence intervals (CIs). Results: Four hundred twenty-three drivers involved in youth bicycle-motor vehicle collisions were identified, as were 243,927 not-at-fault control drivers. Drivers >54 years old had higher odds of involvement in youth bicycle-motor vehicle collisions than drivers between 25 and 39 years old (aOR = 1.37; 95% CI, 1.03, 1.82). Compared to driving between 3:01 p.m. and 6:00 p.m., driving between 12:01 a.m. and 6:00 a.m. (aOR = 0.27; 95% CI, 0.11, 0.66), between 6:01 a.m. and 9:00 a.m. (aOR = 0.61; 95% CI, 0.44, 0.85), or between 9:01 a.m. and 12:00 p.m. (aOR = 0.26; 95% CI, 0.16, 0.41) had lower odds of bicyclist collision, whereas driving between 6:01 p.m. and 12:00 a.m. had higher odds (aOR = 1.34; 95% CI, 1.01, 1.79). Driving a truck/van had lower odds of bicyclist collision compared to driving a passenger car (aOR = 0.67; 95% CI, 0.48, 0.94). Conclusions: Culpability analysis is typically applied to motorists to identify transient exposures; however, this study used culpability analysis to select control drivers who could be compared with drivers involved in youth bicycle-motor vehicle collisions. This study highlights motorist characteristics in youth bicycle-motor vehicle collisions. In doing so, we hope to inform primary prevention strategies for motorists and the environment that will reduce collisions. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
4. Adaptation of a Canadian culpability scoring tool to Alberta police traffic collision report data.
- Author
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Pitt, Tona M., Aucoin, Janet, Nettel-Aguirre, Alberto, McCormack, Gavin R., Howard, Andrew W., Graff, Paul, Rowe, Brian H., and Hagel, Brent E.
- Subjects
TRAFFIC police ,POLICE reports ,STATISTICAL significance ,AGE groups ,MOTOR vehicles ,LOGISTIC regression analysis - Abstract
Objective: The objective of this study was to adapt a previously validated Canadian Culpability Scoring Tool (CCST) to Alberta police report data. Methods: Police traffic collision reports from motor vehicle (MV) collisions in Calgary and Edmonton (Alberta, Canada) from 2010 to 2014 were used. Adaptation of the CCST was completed with input from personnel within Alberta Transportation, contributing to face and content validity. Two research assistants, given only the information necessary for scoring, evaluated 175 randomly selected MV-MV collisions. Interrater agreement was estimated using kappa (k) and reported with 95% confidence intervals (CIs). Discussion of disagreements between the research assistants and consultation from Alberta Transportation informed the algorithm used in the Alberta Motor Vehicle Collision Culpability Tool (AMVCCT). The AMVCCT was automated and applied to all motorists involved in collisions. Binary logistic regression was used to examine characteristics of the culpable and nonculpable drivers and their effects were reported using odds ratios (ORs) with 95% CIs. Results: Interrater agreement for the random sample was excellent (k = 0.95; 95% CI, 0.92-0.99). Of those drivers hospitalized, 1,130 (37.54%) were rated not culpable and 1,880 (62.46%) were rated culpable. The odds of being culpable were higher for males than for females (OR = 1.43; 95% CI, 1.23-1.66). The odds of being culpable were higher in those impaired by alcohol than those considered "apparently normal" (OR = 61.10; 95% CI, 22.66-164.75). The odds of being deemed culpable, when compared with drivers >54 years old, were higher for those <25 years old (OR = 1.72; 95% CI, 1.35-2.20) and lower for those in the 40- to 54-year-old age group (OR = 0.78; 95% CI, 0.63-0.96). Driving between 12 a.m. and 6 a.m. resulted in higher odds of being culpable compare with all other 6-h time blocks. Direction and statistical significance remained consistent when applying the tool to all MV collisions. Sensitivity analysis including the removal of single vehicle collisions did not affect the direction or statistical significance of the main results. Conclusions: The AMVCCT identified a culpable group that exhibited characteristics expected in drivers who are at fault in collisions. The age groups 25-39 and 40-54 demonstrated different results than the CCST. However, this is the only difference that exists in the findings of the AMVCCT compared to the CCST and could exist due to differences between the driving populations in Alberta and British Columbia. It is possible to adapt the CCST to provinces outside British Columbia and, in doing so, we can identify risk factors for collision contribution and not-at-fault drivers who represent the driving population. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
5. Public engagement and community participation in governing urban parks: a case study in changing and implementing a policy addressing off-leash dogs.
- Author
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Rock, Melanie J., Degeling, Chris, Graham, Taryn M., Toohey, Ann M., Rault, Dawn, and McCormack, Gavin R.
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PUBLIC health laws ,POLICY sciences ,PUBLIC health ,DOGS ,HEALTH promotion ,METROPOLITAN areas ,NATURE ,PUBLIC opinion ,RECREATION ,RESEARCH funding ,URBAN health ,PSYCHOLOGY - Abstract
Health promotion views collaborations between local governments and citizens as key to improving health and lessening inequities in urban areas. Public parks, which are typically managed by local governments, are key settings for promoting physical activity, positive social interactions and overall well-being. Yet research on civic participation in park management is essentially absent from the health promotion literature. When the City of Calgary began to implement a new policy on off-leash dogs in parks, we had an opportunity to study civic participation in decision-making. We did so by examining policy documents, participating in meetings and conducting interviews. Off-leash parks have particular relevance for health promotion because they may support physical activity and networking for some, but may escalate conflict and deter park use amongst others. In this case study, the local government engaged citizens in developing an overarching off-leash policy for the city as a whole and in implementing the new policy at the level of neighbourhoods. Of the first three parks to be considered under the new policy, an off-leash area was ultimately designated in just one: a park located in a disadvantaged neighbourhood. By exploring this unexpected outcome, our case study suggests thatpublic engagement, as practiced by local policymakers, may differ fromcommunity participation, as endorsed in health promotion. Further reflection on the meaning of ‘public’ is warranted in public health. [ABSTRACT FROM PUBLISHER]
- Published
- 2016
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6. BMI-Referenced Cut-Points for Recommended Daily Pedometer-Determined Steps in Australian Children and Adolescents.
- Author
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McCormack, Gavin R., Rutherford, Jack, Giles-Corti, Billie, Tudor-Locke, Catrine, and Bull, Fiona
- Subjects
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BODY mass index , *PHYSIOLOGICAL aspects of body weight , *CHILDREN'S health , *ADOLESCENT health , *PHYSICAL anthropology , *PEDOMETERS - Abstract
The purpose of this study was to establish sex-specific criterion-referenced standards for pedometer-determined physical activity related to body mass index (BMI)-defined weight status among youth. We analyzed data from 7-16-year-old boys (n = 338) and girls (n = 337) and used pedometer-assessed physical activity and anthropometric data to derive average steps/day and BMI. Sex-specific criterion-referenced standards for steps/day relating to healthy weight and overweight/obese were determined using the contrasting groups method. Healthy weight children took more steps/day than overweight or obese (buys: 14,413 vs. 12,088, and girls: 12,562 vs. 10,114, respectively; p < .001). The optimal BMI-referenced cut-point emerging from our sample was 16,000 steps/day for both boys and girls. Our results and those reported elsewhere suggest that youth take insufficient pedometer-determined steps/day to avoid becoming overweight. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
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