Our results are also in line with three prospective studies suggesting no association between adiponectin levels and breast cancer risk [Nurses’ Health Study: ORq4 vs Q1=1.30 (0.80–1.03) [25]; EPIC-Varese cohort: OR1SD =1.05 (0.79–1.40) [22]; The Northern Sweden Health and Disease Cohort: ORT3 vs. T1= 0.56 (0.28–1.11) [23]]. This evidence concerns the gene ADIPOQ and breast cancer.