Using Administrative Data to Ascertain True Cases of Muscular Dystrophy: Rare Disease Surveillance
- PMID: 28082256
- PMCID: PMC5269556
- DOI: 10.2196/publichealth.6720
Using Administrative Data to Ascertain True Cases of Muscular Dystrophy: Rare Disease Surveillance
Abstract
Background: Administrative records from insurance and hospital discharge data sources are important public health tools to conduct passive surveillance of disease in populations. Identifying rare but catastrophic conditions is a challenge since approaches for maximizing valid case detection are not firmly established.
Objective: The purpose of our study was to explore a number of algorithms in which International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes and other administrative variables could be used to identify cases of muscular dystrophy (MD).
Methods: We used active surveillance to identify possible cases of MD in medical practices in neurology, genetics, and orthopedics in 5 urban South Carolina counties and to identify the cases that had diagnostic support (ie, true cases). We then developed an algorithm to identify cases based on a combination of ICD-9-CM codes and administrative variables from a public (Medicaid) and private insurer claims-based system and a statewide hospital discharge dataset (passive surveillance). Cases of all types of MD and those with Duchenne or Becker MD (DBMD) that were common to both surveillance systems were examined to identify the most specific administrative variables for ascertainment of true cases.
Results: Passive statewide surveillance identified 3235 possible cases with MD in the state, and active surveillance identified 2057 possible cases in 5 actively surveilled counties that included 2 large metropolitan areas where many people seek medical care. There were 537 common cases found in both the active and passive systems, and 260 (48.4%) were confirmed by active surveillance to be true cases. Of the 260 confirmed cases, 70 (26.9%) were recorded as DBMD.
Conclusions: Accuracy of finding a true case in a passive surveillance system was improved substantially when specific diagnosis codes, number of times a code was used, age of the patient, and specialty provider variables were used.
Keywords: administrative records; algorithm; muscular dystrophy.
©Michael G Smith, Julie Royer, Joshua R Mann, Suzanne McDermott. Originally published in JMIR Public Health and Surveillance (http://publichealth.jmir.org), 12.01.2017.
Conflict of interest statement
Conflicts of Interest: None declared.
References
-
- Carrara G, Scirè CA, Zambon A, Cimmino MA, Cerra C, Caprioli M, Cagnotto G, Nicotra F, Arfè A, Migliazza S, Corrao G, Minisola G, Montecucco C. A validation study of a new classification algorithm to identify rheumatoid arthritis using administrative health databases: case-control and cohort diagnostic accuracy studies. Results from the RECord linkage On Rheumatic Diseases study of the Italian Society for Rheumatology. BMJ Open. 2015 Jan;5(1):e006029. doi: 10.1136/bmjopen-2014-006029. http://bmjopen.bmj.com/cgi/pmidlookup?view=long&pmid=25631308 - DOI - PMC - PubMed
-
- van Mourik MS, van Duijn PJ, Moons KG, Bonten MJ, Lee GM. Accuracy of administrative data for surveillance of healthcare-associated infections: a systematic review. BMJ Open. 2015 Aug;5(8):e008424. doi: 10.1136/bmjopen-2015-008424. http://bmjopen.bmj.com/cgi/pmidlookup?view=long&pmid=26316651 - DOI - PMC - PubMed
-
- Beaudet N, Courteau J, Sarret P, Vanasse A. Prevalence of claims-based recurrent low back pain in a Canadian population: a secondary analysis of an administrative database. BMC Musculoskelet Disord. 2013 Apr;14:151. doi: 10.1186/1471-2474-14-151. http://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-24... - DOI - PMC - PubMed
Grants and funding
LinkOut - more resources
Full Text Sources
Other Literature Sources
