9/11 survivors may be at increased risk of heart and lung disease years later

People who were exposed to the dust cloud or sustained physical injuries during the terrorist attacks on the World Trade Centre on September 11, 2001 may be at increased long-term risk of asthma, other respiratory diseases and heart attack, according to a study published in the open access journal Injury Epidemiology.

Researchers at the New York City Department of Health and Mental Hygiene examined the association between physical injury or acute exposure to the dust cloud on the morning of September 11, 2001, and chronic disease up to ten to eleven years later (2010-2012).

Dr Robert Brackbill, the corresponding author said: “Our findings indicate that intense exposure on a single day — the first day of the disaster — contributes substantially to the risk of developing chronic conditions. Continued monitoring of people who were present in the vicinity of the World Trade Center on 11th September by medical providers is warranted for the foreseeable future.”

The researchers found that the number of types of injuries, such as fractures, head injuries, or sprains, a person sustained on 11th September 2001 was associated with an increased risk of angina or heart attack in a dose-dependent manner, which means that the risk of having angina or a heart attack increased with every additional injury type. Dust exposure, PTSD and being a rescue worker, as well as current smoking were associated with a higher risk of non-neoplastic lung disease (lung conditions not involving tumors) other than asthma, while dust exposure on its own was associated with an increased risk of asthma. None of these risk factors were associated with a higher risk of diabetes.

Out of the total number of 8,701 people enrolled in this study, 41% had intense exposure to the dust cloud, 10% has a single injury, 2% had two types of injury and 1% had three or more. The researchers found 92 incident cases of heart disease, 327 new cases of diabetes, 308 cases of asthma, and 297 cases of…

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