Improvement in Health State Utility after Sacroiliac Joint Fusion: Comparison to Normal Populations.

ABSTRACT: Study Design?Prospective cohort study. Objective?The sacroiliac joint (SIJ) is an important cause of lower back pain. The degree to which minimally invasive surgical fusion of the SIJ improves health state utility has not been previously documented. Methods?Health state utility values were calculated using the EuroQOL-5D (EQ-5D) and Short Form-36 (SF-36) at baseline and 6 and 12 months after SIJ fusion surgery in subjects participating in a prospective, multicenter clinical trial (n?=?172). Values were compared with individuals who participated in a nationally representative cross-sectional survey (National Health Measurement Study [NHMS], n?=?3,844). Health utility values in the SIJ cohort were compared with those of the NMHS participants using both weighted linear regression and calculation of "health quantile" (i.e., percentile of health normalized to the NHMS cohort adjusted for age and gender). Results?Baseline health state utility was significantly depressed in SIJ patients compared with normal subjects (SF-6D 0.509 versus 0.789, SF-36 physical component summary 31.7 versus 49.2, SF-36 mental component summary 8.5 versus 53.8, EQ-5D 0.433 versus 0.868; all p?

SUBMITTER: Cher DJ 

PROVIDER: S-EPMC4771516 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature