Table 1.

Codes used to define autoimmune diseases and other medical conditions that were adjusted for in the analyses

Autoimmune diseases	Codes
Systemic autoimmune rheumatic diseases (SARDs)	rheumatoid arthritis (ICD-9 714.0, 714.1, 714.2, 714.3, 714.81, or V82.1), systemic lupus erythematosus (ICD-9 710.0), Sjogren’s syndrome (ICD-9 710.2), dermatomyositis (ICD-9 710.3), systemic sclerosis (scleroderma) (ICD-9 710.1), sarcoidosis (ICD-9 135), Goodpasture’s syndrome (ICD-9 446.21), and Behcet’s syndrome ICD-9 136.1), other (ICD-9 codes 446.5, 710.4, 725.x).
Organ-specific autoimmune diseases	Hashimoto’s thyroiditis (ICD-9 code 245.2), pernicious anemia (ICD-9-CM 281.0), vitiligo (ICD-9 code 709.01), multiple sclerosis (ICD-9 340), Grave’s disease (ICD-9 codes 242.00, 242.01), glomerulonephritis (ICD-9 code 580.4, 582.x), ankylosing spondylitis (ICD-9 code 720.0), Celiac disease (ICD-9 code 579.0), Chagas disease (ICD-9 code 086.0, 086.2), Crohn’s disease (ICD-9 code 555. x),inflammatory bowel disease (ICD-9 codes 555.0, 555.1, 555.2, 555.9, 556.0, 556.1, 556.2, 556.3, 556.4, 556.5, 556.6, 556.8, 556.9,), psoriasis (ICD-9 code 696.x).
Medical conditions adjusted for in the analyses
Diabetes	Icd-9-CM codes 250, 357.2x, 362.0x, 366.41, 249.xx
Dyslipidemia	ICD-9 272