Relapse patterns in WHO 2/3 nasopharyngeal cancer: Is there a difference between ethnic Asian vs. non-Asian patients?

Abstract

Purpose: The purpose of this study was to assess whether ethnicity is an independent prognostic factor in patients with World Health Organization (WHO) type 2 or 3 nasopharyngeal carcinoma (NPC). Specifically, we examined the patterns of relapse observed in patients classified as "Asian" (born in southern China or southeast Asia) or "non-Asian" (born in Australia, Europe, the Middle East, or the Pacific Islands). Methods and Materials: All patients planned for radical treatment at the Peter MacCallum Cancer Centre from April 1985 to December 1999 were included in this study. Pathology was reviewed to confirm WHO type 2 or 3 NPC. Patients were staged using the 1997 International Union Against..