Moreover, several meta-analyses have been conducted on TP53 codon 72 polymorphism and its relation to breast cancer or lung cancer, mostly on the Caucasian and Asian population, including Japanese (Huang et al., 2003), Chinese (Liu et al., 2013; Chua et al., 2010) and Taiwanese (Wang et al., 1999) regions. This evidence concerns the gene TP53 and lung cancer.