Table 1 Inclusion and exclusion criteria for patients referred to tertiary care due to hip and groin pain

Inclusion criteria

 ● Unilateral or bilateral hip/groin pain > 3 months

 ● Age 18–55 years

 ● No previous hip surgery

Exclusion criteria

 ● Other hip pathology (i.e., Perthes disease)

 ● Verified moderate or severe osteoarthritis (OA) (Tönnis grade > 1)

 ● Patients that had received intra-articular or peri-articular injection with corticosteroids during the last 2 months

 ● Palpable hernia

 ● Low-back pain with a positive Lasègue test with or without MRI-verified lower back/spine pathology

 ● Other musculoskeletal co-morbidities overriding the hip-related symptoms and dysfunction

 ● Co-morbidities excluding physical activity and training,

 ● Psychosocial disorders

 ● Drug abuse

 ● Not understanding the language of interest.