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. 2010 Oct 25;11:247. doi: 10.1186/1471-2474-11-247

Table 2.

Top 30 Relative risks of co-morbidities in patients with rheumatoid arthritis 16 years and older as compared with control group (N = 61,591 for each group)

ICD9 Co-morbidity Condition Persons with RA (N) Percent RR 95% CI
6960 Psoriatic arthropathy 1,540 2.5% 12.3 10.5-15.1
99529 Adverse effect medicinal and biologic substance NEC/NOS 360 0.6% 7.7 5.7-10.4
99666 Reaction-internal joint prosthesis 131 0.2% 4.0 2.7-5.8
9952 Unspecified adverse effect drug, medicinal and biol substance properly administered 717 1.2% 3.9 3.4-4.7
73309 Osteoporosis NEC 479 0.8% 3.9 3.2-4.8
5163 Idiopathic fibrosing alveolitis 205 0.3% 3.9 2.9-5.2
73027 Osteomyelitis NOS-ankle 148 0.2% 3.5 2.5-5.0
2793 Immunity deficiency NOS 81 0.1% 3.4 2.1-5.3
7901 Elevated sediment rate 171 0.3% 3.3 2.4-4.5
7955 Tuberculin test reaction abnormal or positive 239 0.4% 3.3 2.5-4.3
99520 Adverse effect medicinal and biologic substance NOS 708 1.1% 3.2 2.8-3.8
73020 Osteomyelitis NOS-unspec 119 0.2% 3.1 2.2-4.5
28529 Anemia-of other chronic illness 415 0.7% 3.1 2.6-3.8
2550 Cushing's syndrome 61 0.1% 3.0 1.8-5.1
515 Postinflammatory pulmonary fibrosis 1,221 2.0% 3.0 2.7-3.4
2841 Pancytopenia 80 0.1% 3.0 1.9-4.6
4920 Emphysematous BLEB 72 0.1% 2.9 1.8-4.5
79579 Other and unspecified nonspecific immunologic findings 373 0.6% 2.8 2.3-3.5
2794 Autoimmune disease NEC 142 0.2% 2.8 2.1-3.9
5369 Stomach function disorder NOS 67 0.1% 2.8 1.8-4.4
4430 Raynaud's syndrome 251 0.4% 2.8 2.2-3.5
53130 Acute stomach ulcer NOS 76 0.1% 2.7 1.8-4.2
70709 Decubitus ulcer, site NEC 97 0.2% 2.7 1.8-4.0
8082 Fracture of pubis-closed 136 0.2% 2.7 1.9-3.7
27549 Disorders of calcium metabolism NEC 69 0.1% 2.6 1.7-4.2
73340 Aseptic necrosis bone NOS 75 0.1% 2.6 1.7-4.0
8088 Pelvic fracture NOS-closed 121 0.2% 2.6 1.8-3.6
73007 Acute osteomyelitis-ankle 77 0.1% 2.6 1.7-3.9
4476 Arteritis NOS 247 0.4% 2.5 2.0-3.2
73302 Idiopathic osteoporosis 182 0.3% 2.5 1.9-3.3

* Aged at least 16 years, matched controls with Dermatitis/Eczema diagnosis.

Only includes conditions for which there were at least 20 controls Excluded Arthritis/RA-related codes ICD 710-729;996.4.

NOS: Not otherwise specified NEC: Not elsewhere classified