Respiratory health of welders in a container yard, Sri Lanka
Respiratory health of welders in a container yard, Sri Lanka
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DOI：
10.1093/occmed/kqn166
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发表时间：
2009-06-01
影响因子：
5.1
通讯作者：
Abeysena, Chrishantha
中科院分区：
文献类型：
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作者：
Jayawardana, Pushpa;Abeysena, Chrishantha
焊接过程中释放的烟雾和气体会导致呼吸系统疾病。目的评估焊工呼吸症状（RS）和呼吸功能（RF）的患病率，并与对照组（CG）进行比较。方法采用横断面研究方法，对某医学院办公室后勤人员中的焊工和对照组进行调查。RS通过问卷调查和电子肺活量计测定。结果41名焊工和41名对照组参与。焊工患慢性支气管炎的比例（27%,n = 11）明显高于对照组（7%,n = 3），比值比为4.6[95%可信区间（CI）： 1.1-23.3]。焊工用力肺活量（FVC）、用力肺活量第一秒用力呼气量（FEV1.0）、用力呼气中流速（fef25 ~ 75%）和呼气峰值流速（PEFR）分别为2.97 l、2.6 l、3.4 l/s和339 l/min，稍高于CG组（2.79 l、2.4 l、3.38 l/s和323 l/min），差异无统计学意义。将焊工的观察值与预测正常值进行比较，观察到的FVC（分别为2.97和3.35 l）和PEFR（分别为339和538 l/min）的值显著降低。结论：与CG相比，焊工患慢性支气管炎的风险更高，但肺功能未受损。
Background The fumes and gases released during welding can lead to respiratory ill-health.Aims To assess prevalence of respiratory symptoms (RS) and respiratory function (RF) of welders in comparison to a control group (CG).Methods A cross-sectional study was conducted among welders and controls selected from office support staff of a medical faculty. RS were determined by administering a questionnaire and RF with the use of an electronic spirometer.Results Forty-one welders and 41 controls participated. Chronic bronchitis was significantly higher among welders (27%; n = 11) than in controls (7%; n = 3) with an odds ratio of 4.6 [95% confidence interval (CI): 1.1-23.3]. Forced vital capacity (FVC), forced expiratory volume in the first second of forced vital capacity (FEV1.0), forced mid-expiratory flow rate (FEF25-75%) and peak expiratory flow rate (PEFR) were slightly higher among welders (2.97 l, 2.6 l, 3.4 l/s and 339 l/min, respectively) than in the CG (2.79 l, 2.4 l, 3.38 l/s and 323 l/min, respectively), the differences of which were not statistically significant. On comparison of the observed values of welders with the predicted normal values, the observed FVC (2.97 versus 3.35 l, respectively) and PEFR (339 versus 538 l/min) had significantly lower values.Conclusions Welders are at a higher risk of developing chronic bronchitis with non-impairment of lung function in comparison to the CG.