Document Detail


Longitudinal pulmonary function in newly hired, non-World Trade Center-exposed fire department City of New York firefighters: the first 5 years.
MedLine Citation:
PMID:  23188136     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Few longitudinal studies characterize firefighters’ pulmonary function. We sought to determine whether firefighters have excessive FEV(1) decline rates compared with control subjects.
METHODS: We examined serial measurements of FEV(1) from about 6 months prehire to about 5 years posthire in newly hired male, never smoking, non-Hispanic black and white firefighters, hired between 2003 and 2006, without prior respiratory disease or World Trade Center exposure. Similarly defined Emergency Medical Service (EMS) workers served as control subjects.
RESULTS: Through June 30, 2011, 940 firefighters (82%) and 97 EMS workers (72%) who met study criteria had four or more acceptable posthire spirometries. Prehire FEV(1) % averaged higher for firefighters than EMS workers (99% vs 95%), reflecting more stringent job entry criteria. FEV(1) (adjusted for baseline age and height) declined by an average of 45 mL/y both for firefighters and EMS workers, with Fire 2 EMS decline rate differences averaging 0.2 mL/y (CI, 2 9.2 to 9.6). Four percent of each group had FEV(1) less than the lower limit of normal before hire, increasing to 7% for firefighters and 17.5% for EMS workers, but similar percentages of both groups had adjusted FEV(1) decline rates 10%. Mixed effects modeling showed a significant influence of weight gain but not baseline weight: FEV(1) declined by about 8 mL/kg gained for both groups. Adjusting for weight change, FEV(1) decline averaged 38 mL/y for firefighters and 34 mL/y for EMS workers.
CONCLUSIONS: During the first 5 years of duty, firefighters do not show greater longitudinal FEV(1) decline than EMS control subjects, and fewer of them develop abnormal lung function. Weight gain is associated with a small loss of lung function, of questionable clinical relevance in this fit and active population.
Authors:
Thomas K Aldrich; Fen Ye; Charles B Hall; Mayris P Webber; Hillel W Cohen; Michael Dinkels; Kaitlyn Cosenza; Michael D Weiden; Anna Nolan; Vasilios Christodoulou; Kerry J Kelly; David J Prezant
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Chest     Volume:  143     ISSN:  1931-3543     ISO Abbreviation:  Chest     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-04-11     Completed Date:  2013-07-08     Revised Date:  2014-03-07    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  United States    
Other Details:
Languages:  eng     Pagination:  791-7     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Emergency Medical Technicians
Firefighters*
Forced Expiratory Volume
Humans
Lung / physiology*,  physiopathology
Male
New York City
Occupational Health*
Respiratory Function Tests
Smoking / physiopathology
Spirometry
Weight Gain / physiology
Grant Support
ID/Acronym/Agency:
HL090316/HL/NHLBI NIH HHS; K23 HL084191/HL/NHLBI NIH HHS; K23HL084191/HL/NHLBI NIH HHS; K24A1080298//PHS HHS; R01HL057879/HL/NHLBI NIH HHS; U01CA008617/CA/NCI NIH HHS; U10-OH008242/OH/NIOSH CDC HHS; U10-OH008243/OH/NIOSH CDC HHS
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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