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Adverse associations of car time with markers of cardio-metabolic risk.


ABSTRACT:

Objective

To examine associations of time spent sitting in cars with markers of cardio-metabolic risk in Australian adults.

Method

Data were from 2800 participants (age range: 34-65) in the 2011-12 Australian Diabetes, Obesity and Lifestyle Study. Self-reported time spent in cars was categorized into four groups: ?15min/day; >15 to ?30min/day; >30 to ?60min/day; and >60min/day. Markers of cardio-metabolic risk were body mass index (BMI), waist circumference, systolic and diastolic blood pressure, triglycerides, HDL (high-density lipoprotein)-cholesterol, fasting plasma glucose, 2-h plasma glucose, a clustered cardio-metabolic risk score, and having the metabolic syndrome or not. Multilevel linear and logistic regression analyses examined associations of car time with each cardio-metabolic risk outcome, adjusting for socio-demographic and behavioral variables and medication use for blood pressure and cholesterol/triglycerides.

Results

Compared to spending 15min/day or less in cars, spending more than 1h/day in cars was significantly associated with higher BMI, waist circumference, fasting plasma glucose, and clustered cardio-metabolic risk, after adjusting for socio-demographic attributes and potentially relevant behaviors including leisure-time physical activity and dietary intake. Gender interactions showed car time to be associated with higher BMI in men only.

Conclusions

Prolonged time spent sitting in cars, in particular over 1h/day, was associated with higher total and central adiposity and a more-adverse cardio-metabolic risk profile. Further studies, ideally using objective measures of sitting time in cars and prospective designs, are needed to confirm the impact of car use on cardio-metabolic disease risk.

SUBMITTER: Sugiyama T 

PROVIDER: S-EPMC5405044 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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Publications

Adverse associations of car time with markers of cardio-metabolic risk.

Sugiyama Takemi T   Wijndaele Katrien K   Koohsari Mohammad Javad MJ   Tanamas Stephanie K SK   Dunstan David W DW   Owen Neville N  

Preventive medicine 20151204


<h4>Objective</h4>To examine associations of time spent sitting in cars with markers of cardio-metabolic risk in Australian adults.<h4>Method</h4>Data were from 2800 participants (age range: 34-65) in the 2011-12 Australian Diabetes, Obesity and Lifestyle Study. Self-reported time spent in cars was categorized into four groups: ≤15min/day; >15 to ≤30min/day; >30 to ≤60min/day; and >60min/day. Markers of cardio-metabolic risk were body mass index (BMI), waist circumference, systolic and diastolic  ...[more]

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