The cost-effectiveness of the SMART work & life intervention for reducing sitting time

Cox, E, Walker, S, Edwardson, CL, Biddle, SJH, Clarke-Cornwell, AM ORCID: https://orcid.org/0000-0001-9510-7676, Clemes, SA, Davies, MJ, Dunstan, DW, Eborall, H, Granat, MH ORCID: https://orcid.org/0000-0002-0722-2760, Gray, LJ, Healy, GN, Maylor, BD, Munir, F, Yates, T and Richardson, G 2022, 'The cost-effectiveness of the SMART work & life intervention for reducing sitting time' , International Journal of Environmental Research and Public Health, 18 (22) , p. 14861.

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Abstract

Sedentary behaviours continue to increase and are associated with heightened risks of morbidity and mortality. We assessed the cost-effectiveness of SMART Work & Life (SWAL), an intervention designed to reduce sitting time inside and outside of work, both with (SWAL-desk) and without (SWAL-only) a height-adjustable workstation compared to usual practice (control) for UK office workers. Health outcomes were assessed in quality-adjusted life-years (QALY) and costs in pound sterling (2019–2020). Discounted costs and QALYs were estimated using regression methods with multiply imputed data from the SMART Work & Life trial. Absenteeism, productivity and wellbeing measures were also evaluated. The average cost of SWAL-desk was £228.31 and SWAL-only £80.59 per office worker. Within the trial, SWAL-only was more effective and costly compared to control (incremental cost-effectiveness ratio (ICER): £12,091 per QALY) while SWAL-desk was dominated (least effective and most costly). However, over a lifetime horizon, both SWAL-only and SWAL-desk were more effective and more costly than control. Comparing SWAL-only to control generated an ICER of £4985 per QALY. SWAL-desk was more effective and costly than SWAL-only, generating an ICER of £13,378 per QALY. Findings were sensitive to various worker, intervention, and extrapolation-related factors. Based on a lifetime horizon, SWAL interventions appear cost-effective for office-workers conditional on worker characteristics, intervention cost and longer-term maintenance in sitting time reductions.

Item Type: Article
Schools: Schools > School of Health and Society > Centre for Health Sciences Research
Schools > School of Health and Society
Journal or Publication Title: International Journal of Environmental Research and Public Health
Publisher: MDPI
ISSN: 1661-7827
Related URLs:
Funders: NIHR
Depositing User: AM Clarke-Cornwell
Date Deposited: 14 Nov 2022 12:13
Last Modified: 14 Nov 2022 12:15
URI: https://usir.salford.ac.uk/id/eprint/65587

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