Examining the quality of name code record linkage: what is the impact on death and cancer risk estimates? A validation study

Bibliographic Details
Title: Examining the quality of name code record linkage: what is the impact on death and cancer risk estimates? A validation study
Authors: Alexander Swart, Nicola S. Meagher, Marina T. van Leeuwen, Kun Zhao, Andrew Grulich, Limin Mao, Deborah Anne Randall, Louisa Degenhardt, Lucy Burns, Dianne O'Connell, Janaki Amin, Claire M. Vajdic
Source: Australian and New Zealand Journal of Public Health, Vol 39, Iss 2, Pp 141-147 (2015)
Publisher Information: Elsevier, 2015.
Publication Year: 2015
Collection: LCC:Public aspects of medicine
Subject Terms: record linkage, name code, accuracy, validity, sensitivity, specificity, Public aspects of medicine, RA1-1270
More Details: Abstract Objective: To examine the validity and impact of record linkage using name code compared to full name records. Methods: A registry of 45,419 opioid substitution clients (1985–2007) was linked with national population‐based death and cancer registries using registrant's name, date of birth, sex, state, postcode and date of death. Records were linked using full name and then using the first two letters of the given and surname (2×2 name code). Sensitivity and specificity were computed and regression analysis used to identify factors related to linkage accuracy. Standardised mortality ratios (SMR) and standardised cancer incidence ratios (SIR) were estimated. Results: The sensitivity and specificity of name code compared to full name linkage were 65.31% and 99.91% for death records and 76.81% and 99.89% for cancer records. Registrants' age and sex and accuracy of the registries were associated with risk of false linkages. Death and cancer risks (SMR 6.98, 95%CI 6.77–7.19; SIR 1.16, 95%CI 1.08–1.24) were significantly under‐estimated using name code linkage (SMR 4.39, 95%CI 4.23–4.56; SIR 0.92, 95%CI 0.85–0.99). Conclusion: Record linkage using 2×2 name code has low sensitivity but high specificity, resulting in conservative estimates of death and cancer risk. This may translate to meaningful differences in outcomes.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1753-6405
1326-0200
Relation: https://doaj.org/toc/1326-0200; https://doaj.org/toc/1753-6405
DOI: 10.1111/1753-6405.12287
Access URL: https://doaj.org/article/7eb4f2c2a9cc4fff8083cd04ae2f999e
Accession Number: edsdoj.7eb4f2c2a9cc4fff8083cd04ae2f999e
Database: Directory of Open Access Journals
More Details
ISSN:17536405
13260200
DOI:10.1111/1753-6405.12287
Published in:Australian and New Zealand Journal of Public Health
Language:English