Longitudinal spirometry among patients in a treatment program for community members with World Trade Center (WTC)-related illness
Published Date:Oct 2012
Source:J Occup Environ Med. 54(10):1208-1213.
Pubmed Central ID:PMC3665157
Funding:1E11OH009630/OH/NIOSH CDC HHS/United States
ES00260/ES/NIEHS NIH HHS/United States
T32 ES007267/ES/NIEHS NIH HHS/United States
T32 ES07267/ES/NIEHS NIH HHS/United States
The course of lung function in community members exposed to World Trade Center (WTC) dust and fumes remains undefined. We studied longitudinal spirometry among patients in the WTC Environmental Health Center (WTCEHC) treatment program.
Observational study of 946 WTCEHC patients with repeated spirometry measures analyzed on the population as a whole and stratified by smoking status, initial spirometry pattern and WTC-related exposure category.
Improvement in forced expiratory volume (FVC; 54.4 ml/year; 95% CI: 45.0-63.8) and forced expiratory volume in one second (FEV1; 36.8 ml/year; 95% CI: 29.3-44.3) was noted for the population as a whole. Heavy smokers did not improve. Spirometry changes differed depending on initial spirometry pattern and exposure category.
These data demonstrate spirometry improvement in select populations suggesting reversibility in airway injury and reinforcing the importance of continued treatment.
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