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Int. J. Environ. Res. Public Health 2017, 14(12), 1555; https://doi.org/10.3390/ijerph14121555

Exploratory Temporal and Spatial Analysis of Myocardial Infarction Hospitalizations in Calgary, Canada

Department of Geography, University of Calgary, Calgary, AB T2N1N4, Canada
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Received: 14 October 2017 / Revised: 25 November 2017 / Accepted: 6 December 2017 / Published: 11 December 2017
(This article belongs to the Section Health Behavior, Chronic Disease and Health Promotion)
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Abstract

Spatial and temporal analyses are critical to understand the pattern of myocardial infarction (MI) hospitalizations over space and time, and to identify their underlying determinants. In this paper, we analyze MI hospitalizations in Calgary from 2004 to 2013, stratified by age and gender. First, a seasonal trend decomposition analyzes the seasonality; then a linear regression models the trend component. Moran’s I and hot spot analyses explore the spatial pattern. Though exploratory, results show that most age and gender groups feature a statistically significant decline over the 10 years, consistent with previous studies in Canada. Decline rates vary across ages and genders, with the slowest decline observed for younger males. Each gender exhibits a seasonal pattern with peaks in both winter and summer. Spatially, MI hot spots are identified in older communities, and in socioeconomically and environmentally disadvantaged communities. In the older communities, higher MI rates appear to be more highly associated with demographics. Conversely, worse air quality appears to be locally associated with higher MI incidence in younger age groups. The study helps identify areas of concern, where MI hot spots are identified for younger age groups, suggesting the need for localized public health policies to target local risk factors. View Full-Text
Keywords: myocardial infarction; temporal analysis; seasonal trend decomposition; spatial analysis; hot spot analysis; urban air pollution; Canada myocardial infarction; temporal analysis; seasonal trend decomposition; spatial analysis; hot spot analysis; urban air pollution; Canada
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Liu, X.; Bertazzon, S. Exploratory Temporal and Spatial Analysis of Myocardial Infarction Hospitalizations in Calgary, Canada. Int. J. Environ. Res. Public Health 2017, 14, 1555.

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