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Women with large waistlines more likely to have asthma
Washington, Aug 26 (IANS):
Published on 26 Aug. 2009 11:47 PM IST
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Women with large waistlines are more likely to develop asthma even if they have a normal body weight, a new study suggests. Obesity is a risk factor for adult asthma, especially in women, but few studies have looked at the relationship between abdominal obesity (large waist size) and asthma. Researchers led by the Northern California Cancer Centre’s Berkeley team of scientists used data from the California Teachers Study which began in 1995. The study involved 133,479 female teachers and school administrators either employed in the California public school system or retired and receiving retirement benefits. Women participants answered questionnaires in 1995, 1997, 2000 and 2005. The researchers analysed 88,304 women and found that 11,500 (13 percent) of them were obese in 1995, including 1,334 who were extremely obese. They looked those with adult onset asthma, and those with adult onset asthma who were not overweight at age 18, said a release of California Cancer Centre. Compared with women of normal weight -- body mass index (BMI) below 25 -- women who were obese were more than twice as likely to have adult onset asthma, and extremely obese women were more than three times more likely to have asthma. The researchers also found that large waist circumference (more than 88 cm) was associated with increased asthma prevalence even among women with a normal BMI. Women who were obese and overweight were at greater risk of severe asthma attacks, shown by urgent medical visits and hospital admissions.

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