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Asthma Linked To Post-traumatic Stress Disorder

November 22, 2007 at 8:13 PM Research News
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Asthma Linked To Post-traumatic Stress Disorder
For the first time, a link has been established between asthma with post-traumatic stress disorder (PTSD) among adults. The participants in the study, conducted by the researchers at the Columbia University Mailman School of Public Health, were all male twins and veterans of Vietnam. The results showed that the link could not be explained by genetics.


There were 3,065 pairs of twins all of whom had lived together while growing up and both of whom had been on active duty during the Vietnam War. The results showed that those who suffered from the most symptoms of PTSD had a 2.3 times higher chance to have asthma as those who had fewer symptoms.

The twins were both identical - twins that have all the same genetic material- and fraternal - twins that have just half the same. If the connection was genetic, then the results between the two types of twins would have been very different, but there was no marked difference from one group or the other. The association was there even when they adjusted for variables such as smoking, obesity and socioeconomic status, which are all associated with both conditions.

"If there had been a strong genetic component to the link between asthma and PTSD, the results between these two types of twins would have been different, but we didn't find substantial differences between the two," said lead researcher Renee D. Goodwin, PhD, assistant professor of Epidemiology at the Mailman School of Public Health.

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therapistP(Guest)

12/09/2009

Many PTSD suffers experience panic disorder or other respiratory altering anxiety conditions. I have encountered several cases people suffering from PTSD being diagnosed with asthma by their general practitioner based on their report of tight chest etc when in fact asthma is not present. Even where a bronchodilator is effective it is not always clear whether it was bronchial dilation fixing the problem or simply that the inhaler reassured them and hence reduced their anxiety. Another explanation, along similar lines, is that those with respiratory anxiety symptoms (common in PTSD) are more likely to focus on breathing and hence have genuine asthma diagnosed, while many cases in the general population remain undiagnosed. I believe there could be a number of explanations for the association that are not necccessarily. I would be interested to know if the study ruled these out?
Therapist P
P.S. I should state that I am not ruling out a causal role and would not be surprised if it were oresent




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