In a 2015 meta-analysis of 5651 patients with a variety of tumor types, ARID1A was evaluated via genetic analysis and immunohistochemistry with findings that ARID1A deficient tumors had significantly increased cancer-specific mortality (HR = 2.55) and cancer recurrence (HR = 1.93) when compared to a matched ARID1A positive population [27]. This evidence concerns the gene ARID1A and neoplasm.