Nonparametric Statistics / Immunohistochemistry / Prospective studies / Humans / Female / Hysterectomy / Aged / Middle Aged / Adult / Public health systems and services research / Prognosis / Biological markers / Chi Square Distribution / Endometrial Hyperplasia / Hysterectomy / Aged / Middle Aged / Adult / Public health systems and services research / Prognosis / Biological markers / Chi Square Distribution / Endometrial Hyperplasia