What do systematic reviews say?

Summary of findings: Behavioural treatments vs usual care or no treatment

Behavioural treatment probably leads to higher prolonged abstinence at longest compared with no treatment or usual care (moderate certainty).

• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  RR 25.38 [8.03, 80.22]
  1 study · 3562 participants
  Moderate

Pharmacological treatment vs a different pharmacological treatment

• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 166 participants
  GRADE not reported

Combination of interventions vs different (combination) interventions or usual care

• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 6431 participants
  GRADE not reported

One form of behavioural treatment vs a different form of behavioural treatment

• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 739 participants
  GRADE not reported

Pharmacological treatment vs placebo

Pharmacological treatment leads to higher prolonged abstinence at longest compared with placebo (high certainty).

• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  RR 2.53 [1.83, 3.5]
  4 studies · 1429 participants
  High
• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  RR 2.6 [1.29, 5.24]
  1 study · 370 participants
  High
• Smoking cessation for people with chronic obstructive pulmonary disease 2016 · Cochrane Headline outcomes only
  RR 2.03 [1.26, 3.28]
  2 studies · 503 participants
  Moderate