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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Arthritis Care Res (Hoboken). 2016 May;68(5):574–580. doi: 10.1002/acr.22721

Figure 1. Relationships of three case definitions for OA in MEPS-HC.

Figure 1

Inline graphicstrict: ICD-9-CM 715 Inline graphicexpanded: ICD-9-CM 715 or 716 or 719

Inline graphicprobable: strict (ICD-9-CM 715) plus those expanded definition ICD-9-CM 716 or 719 subjects who also reported a prior nonRA arthritis diagnosis

OA, osteoarthritis; MEPS, Medical Expenditure Panel Survey; HC, Household Component