Taiwanese identity is more likely to be pro-independent (Wang & Liu, 2004; Chao, 2003).
Chinese identity or with mainland China background and mixed identity (both Taiwanese and Chinese) are more likely to be pro-unification (Wang & Liu, 2004; Chao, 2003).
Those with a mainland background are more likely to support unification. Taiwanese opt for independence. (Chao, 2003)