Factors associated with smoking cessation and smoking cessation interventions in the Gulf Cooperation Council countries

Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow diagram depicting the selection of papers at each stage. Note: Records excluded for the following reasons. *Excluded results that were unrelated to the topic of the review or duplicates. **Letter to the editor (n=2), review (n=2), correspondence (n=1), a medical guideline (n=1), and governmental documents (n=2). ***unstated outcomes (n=1), included Yemen as a pervious GCC country (n=1), had non-smoking patients (n=1), had no interventions (n=3)