A new study says that the more people perceive that traffic is a problem in their neighbourhood, the more likely they are to have a higher BMI.
The University of Alberta study looked at the relationship between the built environment, socio-economic status (SES), and changes in body mass index (BMI) over a six-year period.
This was one of the surprise findings in the study, led by Tanya Berry, a professor in behavioral medicine and a population health expert in the Faculty of Physical Education and Recreation.
"We found that the more people perceived that traffic was a problem in their neighbourhood, the more likely they were to have a higher BMI. But whether this means that those people were less active, we don't know, but we do know this is something to be followed up on," said Berry.
Study results also showed that age and neighbourhood SES also increased BMI change.
Participants living in the lowest SES neighbourhoods experienced higher BMI increases than those in high SES neighbourhoods. The average BMI increased by .4 points across the entire study sample.
"We found that younger people had the biggest increases in BMI than older people, meaning those in the over -65 group," said Berry. "That's bad news on both counts: that younger people are getter fatter and because low BMI in older people is linked to frailty and illness and is an indicator of cardiovascular disease.