Validation of administrative case ascertainment algorithms for chronic childhood arthritis in Manitoba, Canada

Rheumatology International
Natalie Jane ShiffL M Lix

Abstract

We validated case ascertainment algorithms for juvenile idiopathic arthritis (JIA) in the provincial health administrative databases of Manitoba, Canada. A population-based pediatric rheumatology clinical database from April 1st 1980 to March 31st 2012 was used to test case definitions in individuals diagnosed at ≤15 years of age. The case definitions varied the number of diagnosis codes (1, 2, or 3), time frame (1, 2 or 3 years), time between diagnoses (ever, >1 day, or ≥8 weeks), and physician specialty. Positive predictive value (PPV), sensitivity, and specificity with 95% confidence intervals (CIs) are reported. A case definition of 1 hospitalization or ≥2 diagnoses in 2 years by any provider ≥8 weeks apart using diagnosis codes for rheumatoid arthritis and ankylosing spondylitis produced a sensitivity of 89.2% (95% CI 86.8, 91.6), specificity of 86.3% (95% CI 83.0, 89.6), and PPV of 90.6% (95% CI 88.3, 92.9) when seronegative enthesopathy and arthropathy (SEA) was excluded as JIA; and sensitivity of 88.2% (95% CI 85.7, 90.7), specificity of 90.4% (95% CI 87.5, 93.3), and PPV of 93.9% (95% CI 92.0, 95.8) when SEA was included as JIA. This study validates case ascertainment algorithms for JIA in Canadian administrative healt...Continue Reading

References

Sep 1, 1982·Arthritis and Rheumatism·A M Rosenberg, R E Petty
Aug 17, 2000·JAMA : the Journal of the American Medical Association·C H MacLeanP G Shekelle
Apr 9, 2005·Arthritis and Rheumatism·Diane LacailleJohn M Esdaile
Jun 6, 2008·Archives of Pediatrics & Adolescent Medicine·Debbie Ehrmann FeldmanCiarán M Duffy
Nov 20, 2009·Pediatric Rheumatology Online Journal·Debbie Ehrmann FeldmanMichelle Houde
Apr 17, 2013·The Journal of Rheumatology·Leslie R HarroldLisa J Herrinton
Jul 16, 2014·Rheumatology International·Natalie Jane ShiffSasha Bernatsky
Oct 2, 2014·Rheumatology International·Elizabeth Stringer, Sasha Bernatsky

❮ Previous
Next ❯

Citations

Jan 25, 2019·Journal of Clinical Rheumatology : Practical Reports on Rheumatic & Musculoskeletal Diseases·Carol A HitchonChristine A Peschken
Mar 7, 2020·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Anaïs LacasseAlain Vanasse
Aug 16, 2019·BMC Health Services Research·Claire E H BarberNatalie J Shiff

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioinformatics in Biomedicine

Bioinformatics in biomedicine incorporates computer science, biology, chemistry, medicine, mathematics and statistics. Discover the latest research on bioinformatics in biomedicine here.