Does the association between adherence to statin medications and mortality depend on measurement approach? A retrospective cohort study

Table 5 Definitions of comorbid conditions included in the multivariable model

ICD-9^a	ICD-10-CA	Description
250.x	E10 - E14.xxx	Diabetes & diabetes with complications
401–404.x	I10 to I15.xxx except when I11 is reported with I50 where’s the individual was considered to have heart failure	hypertension

^aICD-9 was used until March 31, 2001, when ICD-10-CA reporting started
ICD-9: Manual of the International Statistical Classification of Diseases, Injuries, and Causes Of Death, 9th revision. Geneva: The Organization; 1977
ICD-10-CA: International Statistical Classification of Diseases and Related Health Problems, tenth revision, Canada. Canadian Institute for Health Information; 2003

ISSN: 1471-2288