Sigari Naseh, Rahimi Ezat, Yazdanpanah Kambiz, Sharifian Afsaneh
Department of Internal Medicine, Urmia University of Medical Sciences, Urmia, Iran.
Iran J Allergy Asthma Immunol. 2007 Dec;6(4):215-8.
Baker's asthma is one of the most common forms of occupational asthma. This study was conducted to determine prevalence of asthma and rhinitis among bakery workers in the city of Sanandaj, the provincial center of Kurdistan province in the west of Iran in the in Summer 2006. In this study 776 bread bakery workers were included. These subjects were selected randomly among 1620 bakery workers. The diagnosis of asthma was based on a medical history of episodic symptoms of cough, chest tightness, and dyspnea and spirometry. Airflow obstruction was determined with spirometry, the definition of airflow obstruction which was used in this study was an FEV1/FVC ratio < 0.8, and FEV1 or FVC increases of > or = 12 percent and at least 200 mL after using a short-acting inhaled beta2-agonist. Rhinitis was diagnosed by typical history of work related symptoms. Analyses were performed on 776 subjects (all were men) without missing data for asthma and rhinitis. All of subjects were male with mean age of 33.69+/-11.09 years. Mean duration of bakery working for these subjects was 13.91+/-9.37 years. Prevalence of asthma at the time of study was 11.9%. 93 subjects were diagnosed as asthma with history, physical and spirometry findings. 31 (33.3%) of asthmatic workers were diagnosed as asthma previously and 62 (66.6%) workers were known as new asthmatic patients which were diagnosed in this study program. The prevalence of rhinitis was (9.9%). Subjects with asthma had longer history of working at bakery than others (P=0.001). Asthma prevalence among these bakery workers that were included in our study was similar and in some instances the prevalence was lower than other studies.
贝克哮喘是职业性哮喘最常见的形式之一。本研究旨在确定2006年夏季伊朗西部库尔德斯坦省省会萨南达杰市面包店工人中哮喘和鼻炎的患病率。本研究纳入了776名面包烘焙工人。这些受试者是从1620名面包店工人中随机挑选出来的。哮喘的诊断基于咳嗽、胸闷和呼吸困难的发作性症状病史以及肺功能测定。通过肺功能测定确定气流受限，本研究中使用的气流受限定义为FEV1/FVC比值<0.8，使用短效吸入β2受体激动剂后FEV1或FVC增加≥12%且至少增加200 mL。鼻炎通过典型的与工作相关症状病史进行诊断。对776名受试者（均为男性）进行了分析，这些受试者在哮喘和鼻炎方面没有缺失数据。所有受试者均为男性，平均年龄为33.69±11.09岁。这些受试者在面包店工作的平均时长为13.91±9.37年。研究时哮喘的患病率为11.9%。93名受试者根据病史、体格检查和肺功能测定结果被诊断为哮喘。31名（33.3%）哮喘工人之前被诊断为哮喘，62名（66.6%）工人是在本研究项目中被诊断出的新哮喘患者。鼻炎的患病率为9.9%。患有哮喘的受试者在面包店工作的时间比其他人更长（P = 0.001）。我们研究中纳入的这些面包店工人的哮喘患病率与其他研究相似，在某些情况下患病率低于其他研究。
