RCOphth NOD National Cataract Audit Year 5 data

The data is for the fifth prospective year of the National Cataract Audit corresponding to the 2020 NHS year (01/04/2020 to 31/03/2021). The data was collected as part of routine clinical care on electronic medical record systems in 134 participating centres. The three metrics used in the national cataract audit are case ascertainment and adjusted rates for posterior capsular rupture and visual acuity loss. The denominator for case ascertainment was the number of cataract operations reported to NHS digital or Digital Health and Care Wales (DHCW) performed using phacoemulsification. Operative data is more consistent than postoperative data as not all centres use the electronic medical record systems in all areas of their hospital eye service. Postoperative results do not include operations performed in the last 2 months of the audit year or for centres with <50 eligible operations in the postoperative time period. Visual acuity estimates are only produced for centres with at least 50 eligible operations with the relevant visual acuity measurement. Comprehensive information regarding the eligibility criteria used in the National Cataract Audit can be found on the audit website (www.nodaudit.org.uk). Results are provided for contributing NHS Trusts, Welsh Health Boards, Independent Sector Treatment Centres (ISTC), one private sector provider centre and one centre from Guernsey. The results for Bradford Teaching Hospitals NHS Foundation Trust include patients from Airedale Hospital NHS Foundation Trust as cataract surgery for Airedale patients is performed in Bradford Teaching Hospitals NHS Foundation Trust sites. Results for Moorfields Eye Hospital NHS Foundation Trust include data for patients treated in Bedford Hospital from the Bedfordshire Hospitals NHS Foundation Trust and data for patients treated in the Croydon Health Services NHS Trust.

本数据集对应于2020年度国家白内障审计的第五个预期年份，即英国国家健康服务体系（NHS）的2020财年（2020年4月1日至2021年3月31日）。数据收集作为常规临床护理的一部分，在134个参与中心通过电子病历系统进行。国家白内障审计中使用的三个指标为病例识别和调整后的后囊膜破裂及视力下降发生率。病例识别的分母为向英国国家健康数字或威尔士数字健康与护理（DHCW）报告的采用超声乳化技术进行的白内障手术数量。手术数据比术后数据更为一致，因为并非所有中心都在其医院眼科服务的所有领域使用电子病历系统。术后结果不包括审计年度最后两个月进行的手术或在该时间段内具备资格手术数量少于50例的中心。仅对至少具备50例相关视力测量资格手术的中心产生视力估计值。关于国家白内障审计中使用的资格标准，可在审计网站上查阅详细信息（www.nodaudit.org.uk）。结果包括对贡献于英国国家健康信托、威尔士卫生委员会、独立治疗中心（ISTC）、一家私营部门提供中心以及根西岛一家中心的报告。布拉德福德教学医院国家健康信托的结果包括来自艾尔德雷尔医院国家健康信托的患者数据，因为艾尔德雷尔医院的白内障手术是在布拉德福德教学医院国家健康信托的场所进行的。莫尔菲尔德眼科医院国家健康信托的结果包括来自贝德福德医院的患者数据，这些数据来自贝德福德郡医院国家健康信托，以及来自克罗伊登卫生服务国家健康信托的患者数据。