Vázquez-Cancela Olalla, Prieto-Calaza Ignacio, Ferreiro-Cadahia Isabel, Fernández-Alvarez Mónica, Monasterio-Otero Alejandro, Fernández-Pérez Cristina
Servicio de Medicina Preventiva y Salud Pública, Complejo Hospitalario Universitario Santiago de Compostela. Santiago de Compostela. España.
Unidad de Prevención de Riesgos Laborales, Servicio de Medicina Preventiva, Complejo Hospitalario Universitario Santiago de Compostela. Santiago de Compostela. España.
Rev Esp Salud Publica. 2023 Mar 14;97:e202303019.
The of the spanish Ministry of Health focuses, since December 2021, on actions aimed at vulnerable people and areas, including healthcare professionals. According to these protocols, a diagnostic test for acute infection (PDIA), with a negative result, is required prior to returning to work (at least five days after the start of clinical practice). The aim of the study was to analyze the proportion of positive antigen (Ag) test results in the first week of diagnosis among healthcare professionals in a university hospital belonging to the province of A Coruña (Spain).
We calculated the proportion of healthcare professionals who had symptoms on the 5 day after diagnosis of COVID-19 between January and March 2022, and the proportion of Ag tests performed after returning to work with positive results. These results were compared according to the month and 95% confidence intervals were calculated.
1,085 cases of COVID-19 were diagnosed among healthcare professionals. 18.62% (95%CI 16.34-21.63; n=202/1,085) were still symptomatic on the 5th day. 55.27% (95% CI 51.92-58.58; n=488/833) of the Ag tests performed after return to work were positive. The mean number of days to perform the Ag test after diagnosis was 6.76 days (SD 0.76).
Our results show a high proportion of positive results one week after diagnosis of COVID-19 in asymptomatic patients. Taking into account that in the general population, discharge is based on clinical and temporal criteria, and assuming that not every positive test indicates infectivity, adopting a strategy similar to the rest of the population in healthcare workers would be considered plausible.
自2021年12月起，西班牙卫生部的工作重点是针对弱势群体和地区开展行动，包括医护人员。根据这些协议，在重返工作岗位之前（至少在临床症状出现后五天），需要进行急性感染诊断检测（PDIA），且结果为阴性。本研究的目的是分析西班牙拉科鲁尼亚省一家大学医院的医护人员在诊断后第一周抗原（Ag）检测结果呈阳性的比例。
我们计算了2022年1月至3月期间新冠病毒疾病确诊后第5天出现症状的医护人员比例，以及重返工作岗位后进行的Ag检测结果呈阳性的比例。根据月份对这些结果进行比较，并计算95%置信区间。
医护人员中确诊了1085例新冠病毒疾病病例。第5天仍有症状的占18.62%（95%置信区间16.34 - 21.63；n = 202/1085）。重返工作岗位后进行的Ag检测中有55.27%（95%置信区间51.92 - 58.58；n = 488/833）呈阳性。诊断后进行Ag检测的平均天数为6.76天（标准差0.76）。
我们的结果显示，新冠病毒疾病诊断一周后无症状患者的阳性结果比例很高。考虑到在普通人群中，出院是基于临床和时间标准，并且假设并非每次阳性检测都表明具有传染性，那么在医护人员中采用与普通人群类似的策略可能是合理的。
