A Case-Control Study of Risks factors for corona virus (covid 19) amongHealth Care Worker

B. Barakzaie
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Abstract

Background and Aim: The ongoing epidemics of coronavirus disease 2019 (COVID-19) have caused serious problems on public health, particularly affecting the health care workers worldwide. There are limited data on number of staff affected by this serious and fatal diseases in national and international level. This study aims to find out the cause of risk of virus transmission and spread among the health worker in Herat Regional Public Hospital, Herat–Afghanistan. Method: We conducted a retrospective case control study to figure out the risk factors of novel covid 19 infection amongst health care workers in Herat Regional Hospital–Afghanistan in late April 2020 approximately 2 months from first case of diseases confirmation in Afghanistan which occurred here in Herat. The staff were divided into two group each of 26. The case group (n=26) were the ones with positive PCR test, while the control group (n=26) were those health workers with same criteria with negative PCR test result, the control group were randomly selected of 178 negative PCR by an administrative colleague who did not have a role in data analysis. Both groups had close contacted with positive covid 19 patients. The data were entered in spreadsheet and analyzed using Epi info 7. Results: Regardless the type of job and place of work, the risk of infection was 4 times higher in those without prior training comparing those who had received a covid 19 training prior to exposure to the disease (OR=4:00, P<0.05, CI 95%). Mean age in the case group was slightly higher (33.9 year) comparing to the control group (30.7 year). Fever was the most common complain of both groups but more common in the case group comparing to the control (70%, 30%) respectively, this finding was significant, p=<0.05. Interestingly, shortness of breath was more common in control group comparing to the case group (30%, 7%). This was statically significant, P=<0.05 more than 50% of positive staff were belongs to two categories; nurses and residents (n=11, n=7) respectively. Comparison of sex, the place and types of job showed no significant differences in being either safe or at more risk of getting infection. Conclusion: Health care workers are at higher risk of getting and transmitting infections from/to the patients. A comprehensive training prior to any exposure to a contagious disease is mandatory to decrease the risk for infection transmission among health care workers, KAP survey may give further information and is suggested.
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医护人员感染冠状病毒(covid - 19)危险因素的病例对照研究
背景与目的:2019冠状病毒病(COVID-19)持续流行,给全球卫生工作者带来了严重的公共卫生问题。关于在国家和国际两级受这种严重和致命疾病影响的工作人员人数的数据有限。本研究旨在找出阿富汗赫拉特地区赫拉特公立医院卫生工作者之间病毒传播和传播风险的原因。方法:我们进行了一项回顾性病例对照研究,以了解2020年4月下旬在阿富汗赫拉特地区医院的医护人员中感染新型covid - 19的危险因素,该病例发生在阿富汗赫拉特地区确诊的第一例疾病约2个月后。工作人员被分成两组,每组26人。病例组(n=26)为PCR检测阳性的病例,对照组(n=26)为PCR检测阴性标准相同的卫生工作者,对照组(n=26)为PCR检测阴性的178例,由一名不参与数据分析的行政同事随机抽取。两组患者均与covid - 19阳性患者有密切接触。将数据输入电子表格并使用Epi info 7进行分析。结果:无论工作类型和工作场所如何,未接受培训的人员感染风险比接触疾病前接受过covid - 19培训的人员高4倍(OR=4:00, P<0.05, CI 95%)。病例组的平均年龄(33.9岁)略高于对照组(30.7岁)。发热是两组患者最常见的主诉,但病例组较对照组更常见(分别为70%、30%),差异有统计学意义(p=<0.05)。有趣的是,与病例组相比,对照组呼吸短促更常见(30%,7%)。这有统计学意义,P=<0.05以上的阳性员工分别属于两类;护士和住院医师分别为11名和7名。性别、地点和工作类型的比较显示,在安全性或感染风险方面没有显著差异。结论:医护人员感染和传播疾病的风险较高。在接触任何传染病之前必须进行全面的培训,以减少卫生保健工作者之间感染传播的风险,KAP调查可以提供进一步的信息,并建议进行调查。
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