Department of Surgery, University of Auckland, Auckland, New Zealand.
Canterbury District Health Board, Christchurch, New Zealand.
ANZ J Surg. 2020 Dec;90(12):2543-2548. doi: 10.1111/ans.16385. Epub 2020 Nov 2.
Registry-based studies have become more common due to the availability of a large study cohort. However, the validity of findings is dependent on the completeness of the registry. This study aimed to validate the capture rate of the New Zealand Joint Registry (NZJR) by matching procedures that have been recorded separately via clinical coding by the New Zealand Government's National Surgical Site Infection Improvement Programme (SSIIP).
The National Health Index, a unique identification code for all patients, was combined with the arthroplasty procedure performed (primary total knee arthroplasty (TKA), primary total hip arthroplasty (THA), revision TKA or revision THA) and operation side. Publicly funded procedures recorded in the NZJR were matched with procedures recorded by the SSIIP on a record-by-record basis. This identified the total number of arthroplasty procedures performed in New Zealand, which was used as the denominator value to calculate the procedure capture rate of the NZJR.
Between 2013 and 2018, 24 556 primary TKA, 28 970 primary THA, 2107 revision TKA and 4263 revision THA procedures were recorded by both datasets. The NZJR recorded 95.5% of primary TKA procedures, 96.3% of primary THA procedures, 97.1% of revision TKA procedures and 95.2% of revision THA procedures.
The NZJR recorded >95% of publicly funded arthroplasty procedures. In contrast, there were inaccuracies in clinical coding by hospitals, particularly with revision procedures, demonstrating the benefits of an arthroplasty registry. However, data recorded by an infection surveillance programme may supplement arthroplasty registry data to strengthen the quality of research.
由于可获得大量研究队列，基于注册的研究变得更加普遍。然而，研究结果的有效性取决于注册的完整性。本研究旨在通过与新西兰政府国家手术部位感染改善计划（SSIIP）单独记录的程序相匹配，来验证新西兰关节登记处（NZJR）的捕获率。
使用新西兰全民健康索引（National Health Index），该索引是所有患者的唯一识别码，结合关节置换术（初次全膝关节置换术（TKA）、初次全髋关节置换术（THA）、翻修 TKA 或翻修 THA）和手术侧，将其与在 NZJR 中记录的公共资助程序进行匹配。以记录为基础，将 SSIIP 记录的程序与 NZJR 中的程序相匹配。这确定了在新西兰进行的所有关节置换手术的总数，将其用作计算 NZJR 程序捕获率的分母值。
2013 年至 2018 年期间，两个数据集共记录了 24556 例初次 TKA、28970 例初次 THA、2107 例翻修 TKA 和 4263 例翻修 THA 手术。NZJR 记录了 95.5%的初次 TKA 手术、96.3%的初次 THA 手术、97.1%的翻修 TKA 手术和 95.2%的翻修 THA 手术。
NZJR 记录了 >95%的公共资助关节置换手术。相比之下，医院的临床编码存在不准确之处，尤其是翻修手术，这表明关节置换登记处的优势。然而，感染监测计划记录的数据可能会补充关节置换登记处的数据，以加强研究质量。
