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Impact of community asymptomatic rapid antigen testing on covid-19 related hospital admissions: synthetic control study
The BMJ ( IF 93.6 ) Pub Date : 2022-11-23 , DOI: 10.1136/bmj-2022-071374
Xingna Zhang 1 , Ben Barr 1 , Mark Green 2 , David Hughes 3 , Matthew Ashton 4 , Dimitrios Charalampopoulos 1 , Marta García-Fiñana 3 , Iain Buchan 5
Affiliation  

Objective To analyse the impact of voluntary rapid testing for SARS-CoV-2 antigen in Liverpool city on covid-19 related hospital admissions. Design Synthetic control analysis comparing hospital admissions for small areas in the intervention population with a group of control areas weighted to be similar for past covid-19 related hospital admission rates and sociodemographic factors. Setting Liverpool city, UK, 6 November 2020 to 2 January 2021, under the intervention of Covid-SMART (systematic meaningful asymptomatic repeated testing) voluntary, open access supervised self-testing with lateral flow devices, compared with control areas selected from the rest of England. Population General population of Liverpool (n=498 042) and a synthetic control population from the rest of England. Main outcome measure Weekly covid-19 related hospital admissions for neighbourhoods in England. Results The introduction of community testing was associated with a 43% (95% confidence interval 29% to 57%) reduction (146 (96 to 192) in total) in covid-19 related hospital admissions in Liverpool compared with the synthetic control population (non-adjacent set of neighbourhoods with aggregate trends in covid-19 hospital admissions similar to Liverpool) for the initial period of intensive testing with military assistance in national lockdown from 6 November to 3 December 2020. A 25% (11% to 35%) reduction (239 (104 to 333) in total) was estimated across the overall intervention period (6 November 2020 to 2 January 2021), involving fewer testing centres, before England’s national roll-out of community testing, after adjusting for regional differences in tiers of covid-19 restrictions from 3 December 2020 to 2 January 2021. Conclusions The city-wide pilot of community based asymptomatic testing for SARS-CoV-2 was associated with substantially reduced covid-19 related hospital admissions. Large scale asymptomatic rapid testing for SARS-CoV-2 could help reduce transmission and prevent hospital admissions. The small area covid-19 hospital admissions data were made available by NHS Digital under data sharing agreement DARS-NIC-16656-D9B5T-v3.10 and are available through application to NHS Digital. All other data are publicly accessible and code is available via the Liverpool City Region Civic Data Cooperative GitHub public repository ().

中文翻译:

社区无症状快速抗原检测对 covid-19 相关住院的影响:综合对照研究

目的 分析利物浦市 SARS-CoV-2 抗原自愿快速检测对 covid-19 相关住院人数的影响。设计综合控制分析,将干预人群中小区域的住院率与一组控制区域的入院率进行比较,这些控制区的权重在过去的 covid-19 相关入院率和社会人口学因素方面相似。将英国利物浦市设定为 2020 年 11 月 6 日至 2021 年 1 月 2 日,在 Covid-SMART(系统有意义的无症状重复测试)的干预下,使用横向流动设备自愿、开放获取监督的自我测试,与从其他地区选择的控制区域进行比较英国。人口 利物浦的一般人口 (n=498 042) 和来自英格兰其他地区的综合控制人口。主要结果衡量英格兰社区每周与 covid-19 相关的住院人数。结果 与综合控制人群相比,社区检测的引入与利物浦 covid-19 相关住院人数减少 43%(95% 置信区间 29% 至 57%)(总共 146 例(96 至 192))相关(在 2020 年 11 月 6 日至 12 月 3 日国家封锁期间在军事援助下进行强化测试的初始阶段,具有与利物浦类似的 covid-19 住院总趋势的非相邻社区集。25%(11% 至 35%)在整个干预期间(2020 年 11 月 6 日至 2021 年 1 月 2 日)估计减少(总共 239 个(104 至 333)),涉及较少的检测中心,在英格兰全国推出社区检测之前,在调整了 2020 年 12 月 3 日至 2021 年 1 月 2 日期间 covid-19 限制层级的区域差异后。结论 在全市范围内开展基于社区的 SARS-CoV-2 无症状检测试点与 covid-19 相关的住院人数大幅减少有关。对 SARS-CoV-2 进行大规模无症状快速检测有助于减少传播并防止住院。NHS Digital 根据数据共享协议 DARS-NIC-16656-D9B5T-v3.10 提供小区域 covid-19 住院数据,并可通过向 NHS Digital 申请获得。所有其他数据均可公开访问,代码可通过利物浦市地区公民数据合作 GitHub 公共存储库(结论 基于社区的 SARS-CoV-2 无症状检测的全市试点与 covid-19 相关住院率的大幅减少有关。对 SARS-CoV-2 进行大规模无症状快速检测有助于减少传播并防止住院。NHS Digital 根据数据共享协议 DARS-NIC-16656-D9B5T-v3.10 提供小区域 covid-19 住院数据,并可通过向 NHS Digital 申请获得。所有其他数据均可公开访问,代码可通过利物浦市地区公民数据合作 GitHub 公共存储库(结论 基于社区的 SARS-CoV-2 无症状检测的全市试点与 covid-19 相关住院率的大幅减少有关。对 SARS-CoV-2 进行大规模无症状快速检测有助于减少传播并防止住院。NHS Digital 根据数据共享协议 DARS-NIC-16656-D9B5T-v3.10 提供小区域 covid-19 住院数据,并可通过向 NHS Digital 申请获得。所有其他数据均可公开访问,代码可通过利物浦市地区公民数据合作 GitHub 公共存储库(NHS Digital 根据数据共享协议 DARS-NIC-16656-D9B5T-v3.10 提供小区域 covid-19 住院数据,并可通过向 NHS Digital 申请获得。所有其他数据均可公开访问,代码可通过利物浦市地区公民数据合作 GitHub 公共存储库(NHS Digital 根据数据共享协议 DARS-NIC-16656-D9B5T-v3.10 提供小区域 covid-19 住院数据,并可通过向 NHS Digital 申请获得。所有其他数据均可公开访问,代码可通过利物浦市地区公民数据合作 GitHub 公共存储库().
更新日期:2022-11-24
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