What do systematic reviews say?

CBT plus standard care vs usual care

It is very uncertain whether COMPARISON 1: CBT+ STANDARD CARE changes mental state: General ‐ clinically important change (no improvement)… compared with STANDARD CARE ALONE (very low certainty).

• Cognitive behavioural therapy plus standard care versus standard care for people with schizophrenia 2018 · Cochrane Headline outcomes only
  RR 0.81 [0.65, 1.02]
  5 studies · 501 participants
  Very low

CBT plus standard care vs usual care

It is very uncertain whether COMPARISON 1: CBT+ STANDARD CARE changes adverse events: General: any adverse event compared with STANDARD CARE ALONE (very low certainty).

• Cognitive behavioural therapy plus standard care versus standard care for people with schizophrenia 2018 · Cochrane Headline outcomes only
  RR 0.44 [0.27, 0.72]
  2 studies · 146 participants
  Very low

CBT plus standard care vs usual care

• Cognitive behavioural therapy plus standard care versus standard care for people with schizophrenia 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 71 participants
  Very low