PMID- 21711969 OWN - NLM STAT- MEDLINE DCOM- 20111128 LR - 20220330 IS - 1945-8932 (Electronic) IS - 1945-8932 (Linking) VI - 25 IP - 1 DP - 2011 Jan-Feb TI - Nonallergic rhinitis and its association with smoking and lower airway disease: A general population study. PG - 25-9 LID - 10.2500/ajra.2011.25.3556 [doi] AB - BACKGROUND: The cause of nonallergic rhinitis (NAR) and its relation to lower airway disease remains unclear. The purpose of this study was to perform a descriptive analysis of the occurrence of rhinitis in a Danish general population with focus on NAR and its association with smoking and lower airway disease. METHODS: A population-based, cross-sectional study conducted in Copenhagen, Denmark was performed. A random sample from the general population (n = 7931; age, 18-69 years) was invited to a general health examination including measurements of serum-specific immunoglobulin E (IgE) to common aeroallergens; 3471 (44%) persons were accepted. For further analysis, we divided the population into the following groups: (I) negative specific IgE and no rhinitis (controls); (II) negative specific IgE and rhinitis (NAR); (III) positive specific IgE and rhinitis (allergic rhinitis [AR]); and (IV) positive specific IgE but no rhinitis (sensitized). RESULTS: We found that NAR was associated with asthma (odds ratio [OR] = 2.51 [1.87-3.37]); chronic bronchitis (OR = 2.27 [1.85-2.79]); current smoking (>15 g/day; OR = 1.57 [1.18-2.08]); lower forced expiratory volume in 1 second/forced vital capacity (FEV(1)/FVC) ratios and reduced FEV(1) values. The association with chronic bronchitis was stronger in NAR than in AR, whereas the opposite was true for asthma. FEV(1)/FVC of <70% was not significantly associated to any group. CONCLUSION: This epidemiological study indicates that both asthma and chronic bronchitis are important comorbidities in NAR confirming the "united airway" hypothesis, and that smoking might be a significant modulator of disease. Although NAR was significantly associated with poor lung function, no significant association with chronic obstructive pulmonary disease was shown. FAU - Hakansson, Kare AU - Hakansson K AD - Department of Otolaryngology, Head and Neck Surgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark. kaare.haakansson@rh.regionh.dk FAU - von Buchwald, Christian AU - von Buchwald C FAU - Thomsen, Simon F AU - Thomsen SF FAU - Thyssen, Jacob P AU - Thyssen JP FAU - Backer, Vibeke AU - Backer V FAU - Linneberg, Allan AU - Linneberg A LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Rhinol Allergy JT - American journal of rhinology & allergy JID - 101490775 RN - 0 (Allergens) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Allergens/adverse effects/immunology MH - Animals MH - Asthma/*epidemiology MH - Betula MH - Bronchitis/*epidemiology MH - Cats MH - Comorbidity MH - Cross-Sectional Studies MH - Denmark MH - Female MH - Humans MH - Immunoglobulin E/blood MH - Male MH - Middle Aged MH - Poaceae MH - Pollen/adverse effects MH - Population Groups MH - Pulmonary Disease, Chronic Obstructive/*epidemiology MH - Pyroglyphidae MH - Respiratory Function Tests MH - Rhinitis/diagnosis/*epidemiology/physiopathology MH - Rhinitis, Allergic, Perennial/diagnosis/*epidemiology/physiopathology MH - Rhinitis, Allergic, Seasonal/diagnosis/*epidemiology/physiopathology MH - Smoking EDAT- 2011/06/30 06:00 MHDA- 2011/12/13 00:00 CRDT- 2011/06/30 06:00 PHST- 2011/06/30 06:00 [entrez] PHST- 2011/06/30 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] AID - 10.2500/ajra.2011.25.3556 [doi] PST - ppublish SO - Am J Rhinol Allergy. 2011 Jan-Feb;25(1):25-9. doi: 10.2500/ajra.2011.25.3556.