Table 1. Inclusion and exclusion criteria.

Inclusion	Exclusion
Full-text paper published in peer-reviewed journals	Not peer-reviewed paper
Model-based and trial-based economic evaluations (e.g. CBA, CUA, CEA, CCA)	Effectiveness studies
Comparison of two or more interventions according to both costs and consequences	Cost studies of single interventions
Adolescents or adults (age 10–65)	Children (age<10) and elderly (65+)
Pharmacological, non-pharmacological, conventional, invasive (surgical), and noninvasive treatments of knee pain in primary and secondary healthcare	Alternative treatment (e.g. healing, mindfulness)
Economic evaluations performed from a societal or/and narrower perspective	Knee pain caused by arthritis or/and osteoarthritis

CBA: cost-benefit analysis, CCA: cost-consequence analysis, CEA: cost-effectiveness, CUA: cost-utility analysis