According to the figures of NTUH physician Su Yi-ning, 80 % of the paternity tests performed at NTUH are requested to prove that children born outside Taiwan have the right to Taiwanese citizenship, 10 % are required because the above 302-day waiting period was not observed, 5 % are used to determine inheritance rights, and the remaining 5 % are needed to confirm or deny a parent / child relationship.
根據台大醫師蘇怡寧的統計，在台大進行親子鑑定的案件中，有 8 成是因為境外（含中國大陸）所生子女辦入籍證明時需要的；有一成是因違反了上述 302 天的待婚期，5％是為了財產繼承等法律用途；剩餘的 5％才是個人為了確認或否定親子關係而來做鑑定。