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To investigate whether a 12‐week physical therapist–delivered combined pain coping skills training (PCST) and exercise (PCST/exercise) is more efficacious and cost effective than either treatment alone for knee osteoarthritis (OA).

This was an assessor‐blinded, 3‐arm randomized controlled trial in 222 people (73 PCST/exercise, 75 exercise, and 74 PCST) ages ≥50 years with knee OA. All participants received 10 treatments over 12 weeks plus a home program. PCST covered pain education and training in cognitive and behavioral pain coping skills, exercise comprised strengthening exercises, and PCST/exercise integrated both. Primary outcomes were self‐reported average knee pain (visual analog scale, range 0–100 mm) and physical function (Western Ontario and McMaster Universities Osteoarthritis Index, range 0–68) at week 12. Secondary outcomes included other pain measures …