title: The association of acetaminophen, aspirin, and ibuprofen with respiratory disease and lung function.
abstract: BACKGROUND
  Oxidative stress may increase the risk of asthma, contribute to asthma progression, and decrease lung function. Previous research suggests that use of acetaminophen, which is hypothesized to reduce antioxidant capacity in the lung, is associated with an increased risk of asthma. We hypothesized that acetaminophen use may also be associated with chronic obstructive pulmonary disease (COPD) and decreased lung function.
  
  
  OBJECTIVE
  To investigate the associations between use of pain medication, particularly acetaminophen, and asthma, COPD, and FEV1 in adults.
  
  
  METHODS
  A cross-sectional analysis using the Third National Health and Nutrition Examination Survey.
  
  
  RESULTS
  Increased use of acetaminophen had a positive, dose-dependent association with COPD (adjusted odds ratio for increasing category of intake, 1.16; 95% confidence interval [CI], 1.09-1.24; p value for trend < 0.001) and an inverse association with lung function (daily user compared with never users, -54.0 ml; 95% CI, -90.3 to -17.7, adjusted). Neither of these associations was explained by overlap between COPD and asthma occurrence. We confirmed a dose-response association of acetaminophen use and asthma (adjusted odds ratio, 1.20; 95% CI, 1.12-1.28; p value for trend < 0.001).
  
  
  CONCLUSIONS
  This study provides further evidence that use of acetaminophen is associated with an increased risk of asthma and COPD, and with decreased lung function.
authors.affiliation: Division of Epidemiology and Public Health, Clinical Science Building, City Hospital, Hucknall Road, Nottingham NG5 1PB, UK. tricia.mckeever@nottingham.ac.uk
authors.forename: Tricia M
authors.initials: TM
authors.lastname: McKeever
authors.forename: Sarah A
authors.initials: SA
authors.lastname: Lewis
authors.forename: Henriëtte A
authors.initials: HA
authors.lastname: Smit
authors.forename: Peter
authors.initials: P
authors.lastname: Burney
authors.forename: John R
authors.initials: JR
authors.lastname: Britton
authors.forename: Patricia A
authors.initials: PA
authors.lastname: Cassano
mesh_terms: D000082:Acetaminophen / Q000009:adverse effects*; D000328:Adult; D018712:Analgesics, Non-Narcotic / Q000009:adverse effects*; D001249:Asthma / Q000139:chemically induced / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D015995:Prevalence; D029424:Pulmonary Disease, Chronic Obstructive / Q000139:chemically induced / Q000453:epidemiology*; D012044:Regression Analysis; D012307:Risk Factors
chemical_list: D018712:Analgesics, Non-Narcotic; D000082:Acetaminophen