Correlation between breast cancer and lifestyle within the Gulf Cooperation Council countries: A systematic review

Table 1 Inclusion/exclusion criteria: Two papers were identified under different titles, published in different journals but had the same study design and results

Inclusion criteria	Exclusion criteria
Papers reporting on obesity of physical inactivity as a risk factor for BC within the GCCCs	Studies on countries outside the GCCCs
Studies looking at the prevalence of obesity and insufficient exercise within the GCCCs	Papers on metabolic syndrome, other cancers, BC awareness, screening and perceptions
Randomised controlled trials, case-controlled studies and observational studies	Systematic reviews, Meta-Analysis, Editorials, Letters and commentaries
Studies involving females aged ≥ 30 yr	Papers solely on children, adolescents (10-19 yr) and young adults (< 30 yr)

GCCCs: Gulf Cooperation Council countries; BC: Breast cancer.