Relationship between body mass index and perceived insufficient sleep among U.S. adults: an analysis of 2008 BRFSS data

2011

Link Between Body Mass Index and Sleep Insufficiency in U.S. Adults

Sample size: 384541 publication Evidence: high

Author Information

Author(s): Wheaton Anne G, Perry Geraldine S, Chapman Daniel P, McKnight-Eily Lela R, Presley-Cantrell Letitia R, Croft Janet B

Primary Institution: Centers for Disease Control and Prevention

Is perceived insufficient sleep associated with body mass index (BMI) in a national sample?

There is a strong correlation between days of insufficient sleep and BMI among U.S. adults.

Adults with a BMI of 40 or higher reported an average of 10.5 days of insufficient sleep.
34.9% of obese class III individuals reported 14 or more days of insufficient sleep in the past month.
Women reported more days of insufficient sleep than men, with averages of 9.1 and 8.0 days respectively.

If you weigh more, you might feel like you don't get enough sleep. This study looked at a lot of people to see if that's true.

Data from the 2008 Behavioral Risk Factor Surveillance System (BRFSS) survey was analyzed using multivariable linear and logistic regression.

Potential biases due to self-reported data and the exclusion of certain populations.

The study's cross-sectional design limits causal inferences, and the sleep question may be subject to interpretation.

Participants included U.S. adults aged 18 and older, with a diverse representation of sex, race/ethnicity, and education levels.

95% CI: 7.8, 8.0 for normal weight; 95% CI: 10.2, 10.9 for obese class III

p<0.05

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