Prospective pilot evaluation of the effectiveness and cost-utility of a "health first" case management service for long-term Incapacity Benefit recipients

Abstract

Background: In line with the NICE guidance, an NHS-commissioned case management intervention was provided for individuals receiving Incapacity Benefit payments for ≥3 years in the North East of England. The intervention aimed to improve the health of the participants. Methods: A total of 131 participants receiving the intervention were compared over 9 months with a (non-equivalent) comparison group of 229 receiving Incapacity Benefit payments and usual care. Health was measured using EQ-5D, EQ-VAS, SF-8, HADS and the Nordic Musculoskeletal questionnaire. Socio-demographic and health behaviour data were also collected. Fixed-effects linear models with correlated errors were used to compare health changes between groups over time. A preliminary cost–utility analysis was also conducted. Results: The comparison group measures of health were stable over time. Starting from comparatively poor initial levels, case-management group generic (EQ5D, EQ-VAS) and mental health (HADS-A, HADS-D and SF8-MCS) measures improved within 6 months to similar levels found in the comparison group. Musculoskeletal (Nordic 2) and health behaviours did not improve. Tentative estimates of cost–utility suggest an intervention cost in the region of £16 700–£23 500 per QALY. Conclusions: Case management interventions may improve the health of Incapacity Benefit recipients. Further research is required to help confirm these pilot findings.