COVID-19和安大略省的长期护理院

N. Stall, K. Brown, A. Jones, Andrew P. Costa, V. Allen, Adalsteinn D. Brown, G. Evans, D. Fisman, J. Johnstone, P. Jüni, K. Malikov, A. Maltsev, A. McGeer, P. Rochon, B. Sander, B. Schwartz, S. Sinha, Kevin L. Smith, A. Tuite, M. Hillmer
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Third, the risk of SARS-CoV-2 infection in staff could be minimized by approaches that reduce the risk of transmission in communities with a high burden of COVID-19. Summary Background The Province of Ontario has 626 licensed LTC homes and 77,257 long-stay beds; 58% of homes are privately owned, 24% are non-profit/charitable, 16% are municipal. LTC homes were strongly affected during Ontario’s first and second waves of the COVID-19 pandemic. Questions What do we know about the first and second waves of COVID-19 in Ontario LTC homes? Which risk factors are associated with COVID-19 outbreaks in Ontario LTC homes and the extent and death rates associated with outbreaks? What has been the impact of the COVID-19 pandemic on the general health and wellbeing of LTC residents? How has the existing Ontario evidence on COVID-19 in LTC settings been used to support public health interventions and policy changes in these settings? What are the further measures that could be effective in preventing COVID-19 outbreaks, hospitalizations, and deaths in Ontario’s LTC homes? Findings As of January 14, 2021, a total of 3,211 Ontario LTC home residents have died of COVID-19, totaling 60.7% of all 5,289 COVID-19 deaths in Ontario to date. There have now been more cumulative LTC home outbreaks during the second wave as compared with the first wave. The infection and death rates among LTC residents have been lower during the second wave, as compared with the first wave, and a greater number of LTC outbreaks have involved only staff infections. The growth rate of SARS-CoV-2 infections among LTC residents was slower during the first two months of the second wave in September and October 2020, as compared with the first wave. However, the growth rate after the two-month mark is comparatively faster during the second wave. The majority of second wave infections and deaths in LTC homes have occurred between December 1, 2020, and January 14, 2021 (most recent date of data extraction prior to publication). This highlights the recent intensification of the COVID-19 pandemic in LTC homes that has mirrored the recent increase in community transmission of SARS-CoV-2 across Ontario. Evidence from Ontario demonstrates that the risk factors for SARS-CoV-2 outbreaks and subsequent deaths in LTC are distinct from the risk factors for outbreaks and deaths in the community (Figure 1). The most important risk factors for whether a LTC home will experience an outbreak is the daily incidence of SARS-CoV-2 infections in the communities surrounding the home and the occurrence of staff infections. The most important risk factors for the magnitude of an outbreak and the number of resulting resident deaths are older design, chain ownership, and crowding. Figure 1. Anatomy of Outbreaks and Spread of COVID-19 in LTC Homes and Among Residents Figure from Peter Hamilton, personal communication. Many Ontario LTC home residents have experienced severe and potentially irreversible physical, cognitive, psychological, and functional declines as a result of precautionary public health interventions imposed on homes, such as limiting access to general visitors and essential caregivers, resident absences, and group activities. There has also been an increase in the prescribing of psychoactive drugs to Ontario LTC residents. The accumulating evidence on COVID-19 in Ontario’s LTC homes has been leveraged in several ways to support public health interventions and policy during the pandemic. Ontario evidence showed that SARS-CoV-2 infections among LTC staff was associated with subsequent COVID-19 deaths among LTC residents, which motivated a public order to restrict LTC staff from working in more than one LTC home in the first wave. Emerging Ontario evidence on risk factors for LTC home outbreaks and deaths has been incorporated into provincial pandemic surveillance tools. Public health directives now attempt to limit crowding in LTC homes by restricting occupancy to two residents per room. The LTC visitor policy was also revised to designate a maximum of two essential caregivers who can visit residents without time limits, including when a home is experiencing an outbreak. Several further measures could be effective in preventing COVID-19 outbreaks, hospitalizations, and deaths in Ontario’s LTC homes. First, temporary staffing could be minimized by improving staff working conditions. Second, the risk of SARS-CoV-2 infection in staff could be minimized by measures that reduce the risk of transmission in communities with a high burden of COVID-19. Third, LTC homes could be further decrowded by a continued disallowance of three- and four-resident rooms and additional temporary housing for the most crowded homes. 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Public health directives now attempt to limit crowding in LTC homes by restricting occupancy to two residents per room. The LTC visitor policy was also revised to designate a maximum of two essential caregivers who can visit residents without time limits, including when a home is experiencing an outbreak. Several further measures could be effective in preventing COVID-19 outbreaks, hospitalizations, and deaths in Ontario’s LTC homes. First, temporary staffing could be minimized by improving staff working conditions. Second, the risk of SARS-CoV-2 infection in staff could be minimized by measures that reduce the risk of transmission in communities with a high burden of COVID-19. Third, LTC homes could be further decrowded by a continued disallowance of three- and four-resident rooms and additional temporary housing for the most crowded homes. 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引用次数: 18

摘要

安大略省长期护理(LTC)家庭居民因COVID-19和与COVID-19大流行相关的疾病而经历了不成比例的高发病率和死亡率。如果实施,有几项措施可以有效预防安大略省LTC家庭的COVID-19爆发、住院和死亡。第一,可以通过改善工作人员的工作条件来尽量减少临时工作人员。第二,继续不允许三人和四人居住的房间,并为最拥挤的住房提供额外的临时住房,可能会使住房进一步拥挤。第三,工作人员感染SARS-CoV-2的风险可以通过降低在COVID-19高负担社区传播风险的方法降到最低。安大略省有626个有执照的LTC家庭和77,257个长期住宿床位;58%的住房为私人所有,24%为非营利/慈善机构,16%为市政所有。在安大略省的第一波和第二波COVID-19大流行期间,LTC房屋受到了严重影响。我们对安大略省LTC家庭的第一波和第二波COVID-19了解多少?哪些风险因素与安大略省LTC家庭的COVID-19爆发有关,以及与爆发相关的程度和死亡率?COVID-19大流行对LTC居民的总体健康和福祉有什么影响?安大略省在LTC环境中关于COVID-19的现有证据如何用于支持这些环境中的公共卫生干预措施和政策变化?在安大略省的LTC家庭中,还有哪些措施可以有效预防COVID-19的爆发、住院和死亡?截至2021年1月14日,共有3211名安大略省LTC家庭居民死于COVID-19,占安大略省迄今为止所有5289名COVID-19死亡人数的60.7%。与第一波相比,第二波期间LTC家庭暴发的累积病例更多。与第一波相比,第二波LTC居民的感染率和死亡率较低,而且更多的LTC暴发只涉及工作人员感染。与第一波相比,在2020年9月和10月第二波的前两个月,LTC居民中SARS-CoV-2感染的增长速度较慢。但是,2个月后的增长速度在第二次浪潮中相对更快。LTC家庭中的第二波感染和死亡大多数发生在2020年12月1日至2021年1月14日之间(发表前最近的数据提取日期)。这凸显了最近LTC家庭中COVID-19大流行的加剧,这反映了最近安大略省各地SARS-CoV-2社区传播的增加。来自安大略省的证据表明,LTC中SARS-CoV-2爆发和随后死亡的风险因素与社区中SARS-CoV-2爆发和死亡的风险因素不同(图1)。LTC家庭是否会爆发的最重要风险因素是家庭周围社区的每日SARS-CoV-2感染发生率和工作人员感染发生率。影响疫情规模和由此导致的居民死亡人数的最重要风险因素是设计较旧、连锁所有权和拥挤。图1所示。剖析COVID-19在LTC家庭和居民中的爆发和传播图来自彼得·汉密尔顿,个人沟通。许多安大略省LTC家庭居民经历了严重的、可能不可逆转的身体、认知、心理和功能下降,这是对家庭实施预防性公共卫生干预的结果,例如限制普通访客和基本护理人员的接触、居民缺席和团体活动。向安大略省长期治疗中心的居民开精神药物处方的情况也有所增加。在安大略省LTC家庭中积累的关于COVID-19的证据已被以多种方式利用,以支持大流行期间的公共卫生干预措施和政策。安大略省的证据表明,LTC工作人员中的SARS-CoV-2感染与LTC居民随后的COVID-19死亡有关,这促使公共命令限制LTC工作人员在第一波LTC家中工作。安大略省关于LTC家庭暴发和死亡风险因素的新证据已被纳入省级大流行监测工具。公共卫生指令现在试图通过将每个房间的入住人数限制为两名居民来限制LTC房屋的拥挤程度。长期护理中心访客政策也进行了修订,指定最多两名基本护理人员,他们可以不受时间限制地访问居民,包括在家庭发生疫情时。还有几项措施可以有效预防安大略省LTC家庭中COVID-19的爆发、住院和死亡。 第一,可以通过改善工作人员的工作条件来尽量减少临时工作人员。其次,通过采取措施降低在COVID-19高负担社区传播的风险,可以最大限度地降低工作人员感染SARS-CoV-2的风险。第三,长期住房可能会进一步拥挤,因为继续不允许三人和四人居住的房间,并为最拥挤的房屋提供额外的临时住房。其他重要问题包括改善LTC工作人员对SARS-CoV-2感染的预防和检测,增强LTC家庭内的感染预防和控制(IPAC)能力,对LTC家庭的公共卫生措施和IPAC战略采取更平衡和细致的方法,促进居民和工作人员接受疫苗的战略,以及进一步改善在COVID-19大流行期间LTC家庭、居民、工作人员、访客和基本护理人员的数据收集。在LTC环境下对第一波和第二波COVID-19大流行的比较显示,一些(但不是全部)流行病学指标有所改善。尽管如此,第二波疫情目前正在LTC家庭中加剧,如果不采取行动,我们可能会在COVID-19疫苗广泛接种和具有时间依赖性的最大效果之前经历大量额外的生命损失。安大略省LTC家庭中爆发、感染传播和死亡的预测因素有很好的记录,并且在第一波和第二波之间保持不变。安大略省LTC家庭中有关COVID-19的一些证据已被有效利用,以支持公共卫生干预措施和政策。一些进一步的措施如果得到实施,有可能防止更多的LTC家庭COVID-19暴发和死亡。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
COVID-19 and Ontario’s Long-Term Care Homes
Key Message Ontario long-term care (LTC) home residents have experienced disproportionately high morbidity and mortality, both from COVID-19 and from the conditions associated with the COVID-19 pandemic. There are several measures that could be effective in preventing COVID-19 outbreaks, hospitalizations, and deaths in Ontario’s LTC homes, if implemented. First, temporary staffing could be minimized by improving staff working conditions. Second, homes could be further decrowded by a continued disallowance of three- and four-resident rooms and additional temporary housing for the most crowded homes. Third, the risk of SARS-CoV-2 infection in staff could be minimized by approaches that reduce the risk of transmission in communities with a high burden of COVID-19. Summary Background The Province of Ontario has 626 licensed LTC homes and 77,257 long-stay beds; 58% of homes are privately owned, 24% are non-profit/charitable, 16% are municipal. LTC homes were strongly affected during Ontario’s first and second waves of the COVID-19 pandemic. Questions What do we know about the first and second waves of COVID-19 in Ontario LTC homes? Which risk factors are associated with COVID-19 outbreaks in Ontario LTC homes and the extent and death rates associated with outbreaks? What has been the impact of the COVID-19 pandemic on the general health and wellbeing of LTC residents? How has the existing Ontario evidence on COVID-19 in LTC settings been used to support public health interventions and policy changes in these settings? What are the further measures that could be effective in preventing COVID-19 outbreaks, hospitalizations, and deaths in Ontario’s LTC homes? Findings As of January 14, 2021, a total of 3,211 Ontario LTC home residents have died of COVID-19, totaling 60.7% of all 5,289 COVID-19 deaths in Ontario to date. There have now been more cumulative LTC home outbreaks during the second wave as compared with the first wave. The infection and death rates among LTC residents have been lower during the second wave, as compared with the first wave, and a greater number of LTC outbreaks have involved only staff infections. The growth rate of SARS-CoV-2 infections among LTC residents was slower during the first two months of the second wave in September and October 2020, as compared with the first wave. However, the growth rate after the two-month mark is comparatively faster during the second wave. The majority of second wave infections and deaths in LTC homes have occurred between December 1, 2020, and January 14, 2021 (most recent date of data extraction prior to publication). This highlights the recent intensification of the COVID-19 pandemic in LTC homes that has mirrored the recent increase in community transmission of SARS-CoV-2 across Ontario. Evidence from Ontario demonstrates that the risk factors for SARS-CoV-2 outbreaks and subsequent deaths in LTC are distinct from the risk factors for outbreaks and deaths in the community (Figure 1). The most important risk factors for whether a LTC home will experience an outbreak is the daily incidence of SARS-CoV-2 infections in the communities surrounding the home and the occurrence of staff infections. The most important risk factors for the magnitude of an outbreak and the number of resulting resident deaths are older design, chain ownership, and crowding. Figure 1. Anatomy of Outbreaks and Spread of COVID-19 in LTC Homes and Among Residents Figure from Peter Hamilton, personal communication. Many Ontario LTC home residents have experienced severe and potentially irreversible physical, cognitive, psychological, and functional declines as a result of precautionary public health interventions imposed on homes, such as limiting access to general visitors and essential caregivers, resident absences, and group activities. There has also been an increase in the prescribing of psychoactive drugs to Ontario LTC residents. The accumulating evidence on COVID-19 in Ontario’s LTC homes has been leveraged in several ways to support public health interventions and policy during the pandemic. Ontario evidence showed that SARS-CoV-2 infections among LTC staff was associated with subsequent COVID-19 deaths among LTC residents, which motivated a public order to restrict LTC staff from working in more than one LTC home in the first wave. Emerging Ontario evidence on risk factors for LTC home outbreaks and deaths has been incorporated into provincial pandemic surveillance tools. Public health directives now attempt to limit crowding in LTC homes by restricting occupancy to two residents per room. The LTC visitor policy was also revised to designate a maximum of two essential caregivers who can visit residents without time limits, including when a home is experiencing an outbreak. Several further measures could be effective in preventing COVID-19 outbreaks, hospitalizations, and deaths in Ontario’s LTC homes. First, temporary staffing could be minimized by improving staff working conditions. Second, the risk of SARS-CoV-2 infection in staff could be minimized by measures that reduce the risk of transmission in communities with a high burden of COVID-19. Third, LTC homes could be further decrowded by a continued disallowance of three- and four-resident rooms and additional temporary housing for the most crowded homes. Other important issues include improved prevention and detection of SARS-CoV-2 infection in LTC staff, enhanced infection prevention and control (IPAC) capacity within the LTC homes, a more balanced and nuanced approach to public health measures and IPAC strategies in LTC homes, strategies to promote vaccine acceptance amongst residents and staff, and further improving data collection on LTC homes, residents, staff, visitors and essential caregivers for the duration of the COVID-19 pandemic. Interpretation Comparisons of the first and second waves of the COVID-19 pandemic in the LTC setting reveal improvement in some but not all epidemiological indicators. Despite this, the second wave is now intensifying within LTC homes and without action we will likely experience a substantial additional loss of life before the widespread administration and time-dependent maximal effectiveness of COVID-19 vaccines. The predictors of outbreaks, the spread of infection, and deaths in Ontario’s LTC homes are well documented and have remained unchanged between the first and the second wave. Some of the evidence on COVID-19 in Ontario’s LTC homes has been effectively leveraged to support public health interventions and policies. Several further measures, if implemented, have the potential to prevent additional LTC home COVID-19 outbreaks and deaths.
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