Changes in healthcare workers' knowledge, attitudes, practices, and stress during the COVID-19 pandemic.

Coronavirus disease 2019 (COVID-19) has caused an unprecedented health crisis around the world, not least because of its heterogeneous clinical presentation and course. The new information on the pandemic emerging daily has made it challenging for healthcare workers (HCWs) to stay current with the latest knowledge, which could influence their attitudes and practices during patient care.This study is a follow-up evaluation of changes in HCWs' knowledge, attitudes, and practices as well as anxiety levels regarding COVID-19 since the beginning of the pandemic. Data were collected through an anonymous, predesigned, self-administered questionnaire that was sent online to HCWs in Saudi Arabia.The questionnaire was sent to 1500 HCWs, with a 63.8% response rate (N = 957). The majority of respondents were female (83%), and the most common age group was 31 to 40 years (52.2%). Nurses constituted 86.3% of the respondents. HCWs reported higher anxiety during the COVID-19 pandemic which increased from 4.91 ± 2.84 to 8.6 ± 2.27 on an 11-point Likert scale compared to other viral outbreaks. HCWs believed that their own preparedness as well as that of their hospital's intensive care unit or emergency room was higher during the COVID-19 pandemic than during the Middle East respiratory syndrome coronavirus pandemic (2012-2015). About 58% of HCWs attended one or more simulations concerning the management of COVID-19 patients in their intensive care unit/emergency room, and nearly all had undergone N95 mask fit testing. The mean score of HCWs' knowledge of COVID-19 was 9.89/12. For most respondents (94.6%), the perception of being at increased risk of infection was the main cause of anxiety related to COVID-19; the mean score of anxiety over COVID-19 increased from 4.91 ± 2.84 before to 8.6 ± 2.27 during the pandemic in Saudi Arabia.HCWs' anxiety levels regarding COVID-19 have increased since a pandemic was declared. It is vital that healthcare facilities provide more emotional and psychological support for all HCWs.