Sleep Habits in U.S. Vary by Race, Native Country: Study

WEDNESDAY, June 13 (HealthDay News) — Race, ethnicity and
country of origin appear to be factors in how much sleep Americans get
each night, according to two new studies.

In one report, State University of New York researchers examined data
from 400,000 participants in the U.S. National Health Interview Surveys
between 2004 and 2010 and found that those born in the United States were
more likely to report sleeping longer than the recommended seven to nine
hours each night.

Previous research has found that adults who regularly sleep less or
more than the recommended seven to nine hours may be at increased risk for
health problems such as cardiovascular disease, stroke and depression.

In comparison, African-born Americans were more likely to report
sleeping six hours or less per night, and Indian-born Americans were more
likely to report sleeping six to eight hours a night.

However, foreign-born Americans were less likely than U.S.-born
Americans to report getting too little or too much sleep after the
researchers adjusted for the effects of age, sex, education, income,
smoking, alcohol use, body mass index and emotional distress.

In the other study, researchers randomly selected 439 adults in Chicago
and found that whites slept significantly longer than other racial/ethnic
groups, blacks reported the worst sleep quality, and Asians were most
likely to report daytime sleepiness.

“These racial/ethnic differences in sleep persisted even following
statistical adjustment for cardiovascular disease risk factors that we
already know to be associated with poor sleep, such as body mass index,
high blood pressure and diabetes,” study lead author Mercedes Carnethon,
of Northwestern University Feinberg School of Medicine in Chicago, said in
an American Academy of Sleep Medicine news release.

“And we excluded participants who had evidence of mild to moderate
sleep apnea. Consequently, these differences in sleep are not attributable
to underlying sleep disorders but represent the sleep experience of a
‘healthy’ subset of the population,” she added.

The studies were to be presented Wednesday at the annual meeting of the
Associated Professional Sleep Societies in Boston. Because this study was
presented at a medical meeting, the data and conclusions should be viewed
as preliminary until published in a peer-reviewed journal.

More information

The U.S. National Heart, Lung, and Blood Institute offers strategies
for getting enough sleep.

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