ORIGINAL ARTICLES AAEM Ann Agric Environ Med 2004, 11, 13–17 Received: 30 September 2003 Accepted: 20 February 2004 RESPIRATORY SYMPTOMS AND PEAK EXPIRATORY FLOW RATES AMONG FURNITURE-DECORATION STUDENTS Peri Arbak 1 , Cahit Bilgin 1 , Oner Balbay 1 1XUD\<HœLOGDO 2 , Ali Nihat Annakkaya 1 , Füsun Ulger 3 1 Abant Izzet Baysal University, Medical Faculty, Department of Pulmonary Diseases, Düzce, Turkey 2 Abant Izzet Baysal University, Medical Faculty, Department of Public Health, Düzce, Turkey 3 Ankara University, Medical Faculty, Department of Pulmonary Diseases, Ankara, Turkey $UEDN 3 %LOJLQ & %DOED\ 2 <HœLOGDO 1 $QQDNND\D $1 Ulger F: Respiratory symptoms and peak expiratory flow rates among furniture-decoration students. Ann Agric Environ Med 2004, 11, 13–17. Abstract: This study was designed to evaluate the effects of furniture production, mainly including fir tree (aberia mulleriana), on respiratory health of young workers and to compare the results with those obtained from previous studies. Sixty-four furniture- decoration students (57 males and 7 females) and 62 controls (54 male, 8 female) from different departments in the same school were included into the study. All participants were assessed with a questionnaire (concerning history of occupational exposure, work- related respiratory and other symptoms, smoking history, previous asthma history), full physical examination, spirometric evaluation and chest radiograph. Participants then performed serial monitoring of peak expiratory flow rates (PEFR) at work and away from work within a month. Mean age of students was 20.9 ± 3.7 years, 20.5 ± 2.6 years in controls. There was no difference between study and control groups with regard to age, gender, smoking status and previous asthma history. Reported cough (23.4% vs. 8.1%) and shortness of breath (18.8% vs. 6.5%) were significantly higher in furniture- decoration students than in controls (p = 0.016 and p = 0.034, respectively). Furniture- decoration students had higher conjunctivitis (34.4% vs. 9.7%, p = 0.001) and rhinitis (34.4% vs. 19.4%, p = 0.044) history when compared with controls. Both students and controls were normal in terms of respiratory examination. PEF recordings were performed for approximately one month. Diurnal variability greater than 20% was seen in 12/64 (18.7%) of students at work, whereas it was detected in 4/62 (6.4%) of controls (p = 0,034). When comparing for the presence of diurnal variability greater than 20% in weekends, no difference was found between groups (p = 0.457). In conclusion, early detection of work-related respiratory changes by serial monitoring of peak expiratory flows should save the workers from hazardous respiratory effects of the furniture production, especially in young population. Address for correspondence: Peri Arbak, MD, Abant Izzet Baysal University, Düzce Faculty of Medicine, Department of Pulmonary Diseases, Düzce, Turkey. E-mail: periarbak@hotmail.com Key words: peak expiratory flow, furniture production, occupational asthma. INTRODUCTION Respiratory health effects have been documented in furniture production workers due to the exposure to a variety of wood dusts, chemicals and microorganisms [15, 18, 28]. Furniture production related respiratory disorders include occupational asthma, non-asthmatic chronic airflow obstruction, extrinsic allergic alveolitis, organic dust toxic syndrome and simple chronic bronchitis [11, 26, 28]. Among woods, western red cedar is the most investi- gated agent which causes occupational asthma, whereas other types of wood dust such as pine, spruce, fir have