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Table 2 Eligibility criteria

From: The impact of income support systems on healthcare quality and functional capacity in workers with low back pain: a realist review protocol

  Inclusion Exclusion
Study focus Any system that provides income support for people with NSLBP (e.g. workers’ compensation, disability support systems) Systems that do not offer income support systems
Study design Qualitative description
Randomised controlled trial (RCT)
Cohort study
Case control study
Cross-sectional study
Mixed-methods study
Systematic reviews (and meta-analysis)
Literature reviews (including narrative)
Opinion piece
Grey literature Position statements
Policy summaries
Study population Working-age adults in whom NSLBP is the cause of any absence from work Participants younger than 18 years
Participants where NSLBP is caused by specific pathologies (e.g. injuries)
Outcome Healthcare quality worker functional capacity (e.g. work, activities of daily living) Pain
Physical health
Mental health
Costs or expenditure