Table 7. Efficacy of smoking cessation after 6–12 months from meta-analysis of eight smoking cessation trials in chronic obstructive pulmonary disease patients
TreatmentOR (95% CI)p-value
Nothing/usual care1
Counselling alone1.82 (0.96–3.34)0.07
Counselling + antidepressants3.32 (1.53–7.21)0.002
Counselling + NRT5.08 (4.32–5.97)<0.001
Counselling + varenicline4.04 (2.13–7.67)<0.001

  • Reproduced and modified from [35] with permission from the publisher.