Validating surgical procedure codes for inflammatory bowel disease in the Swedish National Patient Register.

ABSTRACT:

Background

About 50% of patients with Crohn's disease (CD) and about 20% of those with ulcerative colitis (UC) undergo surgery at some point during the course of the disease. The diagnostic validity of the Swedish National Patient Register (NPR) has previously been shown to be high for inflammatory bowel disease (IBD), but there are little data on the validity of IBD-related surgical procedure codes.

Methods

Using patient chart data as the gold standard, surgical procedure codes registered between 1966 and 2014 in the NPR were abstracted and validated in 262 randomly selected patients with a medical diagnosis of IBD. Of these, 53 patients had reliable data about IBD-related surgery. The positive predictive value (PPV), sensitivity and specificity of the surgical procedure co

SUBMITTER: Forss A 

PROVIDER: S-EPMC6849315 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature