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Mean (unadjusted) SF-36 subdomain values in the SIJ cohort (white) versus the NHMS cohort (black).
Abbreviations: SIJ, sacroiliac joint; NHMS, National Health Measurement Study; PF, physical function; RP, role physical; BP, bodily pain; GH, general health; VT, vitality; SF, social function; RE, role emotional; MH, mental health; SF-36, Short Form-36.
