Forest plot of cancer risk associated with CYP1A2 rs762551 polymorphism in different ethnicity. Pooled odds ratio (OR) for (1) total samples, (2) Caucasians ethnicity, and (3) Asians ethnicity. The genetic models are CC versus AA. The squares and horizontal lines correspond to the study-specific odds ratio (OR) and 95% confidence interval (CI).
Wang et al. BMC Cancer 2012 12:528 doi:10.1186/1471-2407-12-528