Foo 2020.

Methods	No information on baseline data for depressive, anxiety symptoms and distress Study design: RCT Country: Malaysia
Participants	Knee osteoarthritis patients Inclusion criteria:  a. diagnosed with primary knee OA on the basis of medical evaluation (knee pain for most days of the month before and bony enlargement of the knee) and radiographic examination showing Kellgren–Lawrence (K‐L) classification of grade 2 or higher b. had an average pain intensity of 40 or higher on a 100 mm visual analogue scale in the 7 days before baseline assessment Exclusion criteria: a. knee pain caused by conditions other than knee OA b. had knee replacement surgery of the affected knee in the past year c. were currently receiving or had undergone cognitive behavioural‐based therapy or other psychotherapy (including counselling) d. had participated in any other clinical study in the past 12 months e. had been diagnosed with mental disorder, pregnancy or were breastfeeding Stated purpose: to develop a cognitive behavioural‐based therapy intervention module for physiotherapists and nurses and to evaluate its effectiveness in treating pain, functional disability and the psychological outcomes of knee OA patients in Malaysian tertiary hospitals
Interventions	Intervention: health‐led cognitive behavioural‐based group therapy Participants in the intervention group, besides being given The Knee Book, also received three sessions of group cognitive behavioural‐based therapy. The two‐and‐a‐half‐hour sessions were conducted bi‐weekly in groups of eight to twelve participants. The session ended with exercises, diaphragmatic breathing, knee muscle relaxation and a six‐minute walk test. Each session began with an introduction and lecture, a problem‐solving task, skills‐training, homework assignments and feedback of the session which took approximately 45 min to complete. Control: usual care (participants attended clinic and physiotherapy sessions as usual on their fixed appointment dates. All participants received advice on symptom management and standard exercises to remain active. The participants in the “passive” control group received no further intervention and were each provided with The Knee Book).
Outcomes	Participants'outcomes of interest for this review Mental health symptoms/depression – Depression Anxiety and Stress Scale (DASS‐21) Mental health symptoms/anxiety – Depression Anxiety and Stress Scale (DASS‐21) Mental health symptoms/distress/PTSD – Depression Anxiety and Stress Scale (DASS‐21) Economic outcomes Nil Time points: baseline, post‐intervention (6 months)
Notes	Source of funding: Universiti of Putra Malaysia, Research Medical Centre grants (04‐02‐12‐1746RU) Prospective trial registration number: NMRR‐15‐74‐24008