According to the results of a study on mental illness in Taiwan by NTU's Ye Ying-kun, mental disorders have increased 8-15 times during the past two decades of social transformation. But major mental illnesses such as schizophrenia have held steady at only about 3 percent of the total.
根據台大醫院精神科教授葉英所作「台灣地區精神病流行病學研究」結果，二十年來社會環境的變遷，精神官能症（心理症）的比例增加八∼十五倍；而精神分裂症等重症精神病的盛行率依然維持在千分之三左右，並無變化。