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The present study aimed to investigate the relations between occupational exposures and respiratory symptoms and lung function among hairdressers in Iran.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>We conducted a cross-sectional study to compare potential respiratory effects among 140 women working as hairdressers to such effects among 140 women working as office workers (administrative personnel). Both groups worked in Shiraz, Iran. Respiratory symptoms were assessed by a standard respiratory questionnaire. The questionnaire also inquired about substances used and workspace conditions, including ventilation type. Lung function levels were measured by spirometry.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Respiratory symptoms, including cough, wheezing, shortness of breath, and chest tightness were significantly more frequent in hairdressers compared to the reference group (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). After controlling for potential confounders, hairdressers had a prevalence ratio (PR) of 2.18 (95% CI 1.26\u20133.77) for cough, 9.59 (95% CI 1.004\u201391.73) for wheezing, 2.06 (95% CI 1.25\u20133.39) for shortness of breath, and 3.31 (95% CI 1.84\u20135.97) for chest tightness compared to the reference group. Lung function parameters (including VC, FVC, and FEV1) were significantly reduced in hairdressers (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). Absence of air conditioning predicted greater reduction in lung function (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05) in the exposed. Decrease in FVC with normal FEV1\/FVC in the exposed group suggested existence of restrictive lung function.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>This study provides evidence of increased prevalence of respiratory symptoms and restrictive lung function impairment among hairdressers in Iran.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00420-020-01645-z","type":"journal-article","created":{"date-parts":[[2021,1,18]],"date-time":"2021-01-18T09:03:07Z","timestamp":1610960587000},"page":"877-887","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Occupational exposures and respiratory symptoms and lung function among hairdressers in Iran: a cross-sectional study"],"prefix":"10.1007","volume":"94","author":[{"given":"Behzad","family":"Heibati","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maritta S.","family":"Jaakkola","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taina K.","family":"Lajunen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan","family":"Ducatman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zahra","family":"Bamshad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samira","family":"Eslamizad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Shafee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali","family":"Karimi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4168-4683","authenticated-orcid":false,"given":"Jouni J. 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