How well do ICD-9 physician claim diagnostic codes identify confirmed pertussis cases in Alberta, Canada? A Canadian Immunization Research Network (CIRN) Study

• Main Authors: Sumana Fathima (Author), Kimberley A. Simmonds (Author), Steven J. Drews (Author), Lawrence W. Svenson (Author), Jeffrey C. Kwong (Author), Salaheddin M. Mahmud (Author), Susan Quach (Author), Caitlin Johnson (Author), Kevin L. Schwartz (Author), Natasha S. Crowcroft (Author), Margaret L. Russell (Author), For the Canadian Immunization Research Network (CIRN) (Author)
• Format: Book
• Published: BMC, 2017-07-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background Rates of Bordetella pertussis have been increasing in Alberta, Canada despite vaccination programs. Waning immunity from existing acellular component vaccines may be contributing to this. Vaccine effectiveness can be estimated using a variety of data sources including diagnostic...