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Spine

DOES A VOCATIONAL ADVICE SERVICE LOCATED IN PRIMARY CARE IMPROVE WORK OUTCOMES IN PATIENTS WITH MUSCULOSKELETAL PAIN? THE SWAP (STUDY OF WORK AND PAIN) CLUSTER RANDOMISED TRIAL (ISRCTN 52269669)

The Society for Back Pain Research (SBPR) - Annual General Meeting 2016



Abstract

Introduction

Early intervention is advocated to prevent long-term work absence due to musculoskeletal (MSK) pain. The SWAP trial tested whether adding a vocational advice (VA) service to best current care led to fewer days work absence over 4 months.

Methods

The SWAP trial was a cluster randomised controlled trial in 6 general practices, 3 randomised to best current care (control), 3 randomised to best current care and the VA service (intervention). Patients were ≥18 years, absent from work ≤6 months or struggling at work due to MSK pain. Primary outcome was number of days absent over 4 months. Exploratory subgroup analyses examined whether the effect was larger for patients with spinal pain compared to other MSK pain.

Results

338 participants (158 intervention, 180 control) were recruited with 79% followed-up at 4 months. Participants in the intervention arm had significantly fewer days absent over 4 months (mean 9.3 days, SD 21.7) compared with control (mean 14.4 days, SD 27.7); adjusted incidence rate ratio (IRR) 0.51 (0.26, 0.99), p=0.048. This difference was largely due to fewer GP certified absent days (8.4 days versus 13.5 days). At 12 months the effect of the VA service was significantly greater in those with spinal pain compared to patients with other MSK problems (IRRinteraction: 0.25 (95% Confidence Interval 0.10, 0.62) (p interaction=0.003).

Conclusions

Adding a VA service to best current primary care for MSK pain leads to significantly fewer days absent from work over 4 months, with exploratory analysis indicating the VA service is particularly effective for patients with spinal pain.

No conflicts of interest

This paper presents independent research funded by the National Institute for Health Research (NIHR), under its Programme Grants for Applied Research funding scheme: “Optimal management of spinal pain and sciatica in primary care” (NIHR-RP-PG-0707-10131). NEF and AB are funded by an NIHR Research Professorship (NIHR-RP-011-015). NEF and EMH are NIHR Senior Investigators. GW-J is funded by an NIHR Post-Doctoral Fellowship (PDF-2009-02-54). The views expressed are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health.