Joseph Nitin, Venkatesh Varun, Akash S K, Hegde Saurish, Moras Errol, Shenoy Nikhilgovind P
Associate Professor, Department of Community Medicine, Kasturba Medical College, Manipal University, Mangalore, Karnataka, India.
Student, Department of Community Medicine, Kasturba Medical College, Manipal University, Mangalore, Karnataka, India.
J Clin Diagn Res. 2017 May;11(5):LC23-LC28. doi: 10.7860/JCDR/2017/24977.9879. Epub 2017 May 1.
Welding is an occupation associated with tremendous physical and chemical hazards. In spite of the risk involved, usage of Personal Protective Gears (PPGs) among welders in developing countries has been reported to be poor, due to their limited awareness of occupational hazards.
To assess morbidity pattern, awareness of occupational hazards and usage practices of protective gears among welders.
Cross-sectional study was conducted at welding sites from unorganized sector situated in and around Mangalore. A total of 155 welders chosen randomly from as many sites were interviewed at their workplace using a pilot tested structured interview schedule with both closed and open ended questions. Clinical examination of the participant and inspection of the work site was also done by the investigators. Statistical analysis used for analysis was Chi-Square test, unpaired t-test and ANOVA test.
Working >8 hours a day was reported by 30 (19.4%) welders. Overcrowding was present at 10.3%, ventilation status was inadequate at 6.9% and exhaust ventilation was not present at 25.9% sites. Awareness about occupational health hazards associated with welding was present among 97(62.6%) welders. Periodicity of medical examination was associated with awareness of occupational hazards among welders (p=0.032). First aid kit was present at 60 (38.7%) sites. The most common morbidity over the past year was wounds 119 (76.8%). Non-usage of most essential protective gears such as face shields, masks or eye goggles was seen among 18 (11.6%) welders. Mean number of morbidities over the past one month was found to be more, in those welders doing continuous work of ≥6 hours (p=0.05), at sites with overcrowding (p=0.002) and at sites where >10 welders work together (p=0.031).
The period prevalence of morbidity was high among the welders surveyed. Ignorance of health hazards associated with occupation and non-usage of protective gears was reported by number of them. Therefore, health education and safety policies need to be strengthened at welding sites.
焊接是一项伴随着巨大物理和化学危害的职业。尽管存在风险,但据报道,由于发展中国家的焊工对职业危害的认识有限,他们使用个人防护装备(PPG)的情况很差。
评估焊工的发病模式、对职业危害的认识以及防护装备的使用情况。
在芒格洛尔及其周边非正规部门的焊接场所进行横断面研究。从同样多的场所中随机挑选了155名焊工,在他们的工作场所使用经过预试验的结构化访谈提纲进行访谈,该提纲包含封闭式和开放式问题。研究人员还对参与者进行了临床检查并对工作场所进行了检查。用于分析的统计方法有卡方检验、非配对t检验和方差分析。
30名(19.4%)焊工报告每天工作超过8小时。10.3%的场所存在人员过度拥挤的情况,6.9%的场所通风状况不佳,25.9%的场所没有排气通风设备。97名(62.6%)焊工了解与焊接相关的职业健康危害。体检的定期性与焊工对职业危害的认识相关(p = 0.032)。60个(38.7%)场所配备了急救箱。过去一年中最常见的病症是伤口,有119例(76.8%)。18名(11.6%)焊工未使用最基本的防护装备,如面罩、口罩或护目镜。发现在连续工作≥6小时的焊工中、在人员过度拥挤的场所中以及在10名以上焊工一起工作的场所中,过去一个月的平均发病数更多(p分别为0.05、0.002和0.031)。
在所调查的焊工中,发病率的期间患病率很高。许多焊工报告对职业健康危害一无所知且未使用防护装备。因此,需要加强焊接场所的健康教育和安全政策。