Journal
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
Volume 302, Issue 5, Pages 502-516Publisher
AMER MEDICAL ASSOC
DOI: 10.1001/jama.2009.1121
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Funding
- Agency for Toxic Substances and Disease Registry (ATSDR) of the Centers for Disease Control and Prevention (CDC) [U50/ATU272750]
- National Center for Environmental Health (NCEH)
- New York City Department of Health and Mental Hygiene (NYCDOHMH)
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Context The World Trade Center Health Registry provides a unique opportunity to examine long-term health effects of a large-scale disaster. Objective To examine risk factors for new asthma diagnoses and event-related post-traumatic stress (PTS) symptoms among exposed adults 5 to 6 years following exposure to the September 11, 2001, World Trade Center (WTC) terrorist attack. Design, Setting, and Participants Longitudinal cohort study with wave 1 (W1) enrollment of 71 437 adults in 2003-2004, including rescue/recovery worker, lower Manhattan resident, lower Manhattan office worker, and passersby eligibility groups; 46 322 adults (68%) completed the wave 2 (W2) survey in 2006-2007. Main Outcome Measures Self-reported diagnosed asthma following September 11; event-related current PTS symptoms indicative of probable posttraumatic stress disorder (PTSD), assessed using the PTSD Checklist (cutoff score >= 44). Results Of W2 participants with no stated asthma history, 10.2% (95% confidence interval [CI], 9.9%-10.5%) reported new asthma diagnoses postevent. Intense dust cloud exposure on September 11 was a major contributor to new asthma diagnoses for all eligibility groups: for example, 19.1% vs 9.6% in those without exposure among rescue/recovery workers (adjusted odds ratio, 1.5 [ 95% CI, 1.4-1.7]). Asthma risk was highest among rescue/recovery workers on the WTC pile on September 11 (20.5% [ 95% CI, 19.0%-22.0%]). Persistent risks included working longer at the WTC site, not evacuating homes, and experiencing a heavy layer of dust in home or office. Of participants with no PTSD history, 23.8% ( 95% CI, 23.4%-24.2%) reported PTS symptoms at either W1(14.3%) or W2 (19.1%). Nearly 10% ( 9.6% [ 95% CI, 9.3%-9.8%]) had PTS symptoms at both surveys, 4.7% ( 95% CI, 4.5%-4.9%) had PTS symptoms at W1 only, and 9.5% ( 95% CI, 9.3%-9.8%) had PTS symptoms at W2 only. At W2, passersby had the highest rate of PTS symptoms (23.2% [ 95% CI, 21.4%-25.0%]). Event-related loss of spouse or job was associated with PTS symptoms at W2. Conclusion Acute and prolonged exposures were both associated with a large burden of asthma and PTS symptoms 5 to 6 years after the September 11 WTC attack. JAMA. 2009;302(5):502-516 www.jama.com
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