By Ryan McGreal
Published September 19, 2012
this blog entry has been updated
From the Yet More Evidence Telling Us What We Already Know dept:
A recent cohort study conducted in Toronto and published in the peer reviewed journal Diabetes Care concludes that a neighbourhood's walkability is a strong predictor of the incidence of diabetes, especially among recent immigrants.
The researchers looked at everyone in Toronto between 30 and 65 and controlled for age, income and immigrant status. Among all groups - low-income recent immigrants, low-income long-term residents, high-income recent immigrants and high-income long-term residents - the rate of incidence of diabetes was lower in more walkable neighbourhoods.
However, the biggest increase in risk of incidence was among low-income recent immigrants, who had a 50% higher risk of getting diabetes in the least walkable neighbourhoods compared to the most walkable.
Comparing across cohorts, low-income immigrants living in the least walkable neighbourhoods have three times the risk of getting diabetes as high-income immigrants living in the most walkable neighbourhoods.
(h/t to the always-informative Atlantic Cities for highlighting the study)
Update: as recommended by John Neary in this comment, I have edited this blog entry to make more explicit the fact that the study recorded the incidence of diabetes, i.e. the rate of new cases of diabetes among the cohorts, and not the pre-existing prevalence of diabetes.