title: Creation of the Polish version and adaptation of the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Endometrial Cancer Module (QLQ-EN24).
abstract: OBJECTIVE
  The purpose of this study was to create and introduce a Polish version of the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire for Endometrial Cancer (QLQ-EN24).
  
  
  METHODS
  The translation procedure described by the EORTC was adopted; this comprised two independent forward translations of the original English questionnaire into Polish, two independent backward translations from Polish to English and pilot testing conducted on 12 patients with diagnosed endometrial cancer. They were asked whether there was any difficulty in answering, confusion while answering, or difficulty in understanding the questions, and if the patients themselves would have framed the questions in a different way.
  
  
  RESULTS
  During the process of translation, discussions and text corrections were performed by medical experts and native English speakers. Some sentences or phrasing were adopted from other EORTC questionnaires for different diseases. After pilot testing, further text corrections were adopted according to patients' comments. These involved wording, sentence structure, and text editing (font size, bolding).
  
  
  CONCLUSIONS
  The final version of the Polish EN24 questionnaire has been approved by the EORTC Translational Office. It is available on the EORTC web page now.
authors: Department of Gynecologic Oncology, Gdynia Oncology Center, Gdynia, Poland.
authors: Maciej
authors: M
authors: Stukan
authors: Department of Clinical Oncology, Holycross Cancer Center, Kielce, Poland ; Chair and Clinical Department of Obstetrics, Female Diseases and Gynecological Oncology, II Medical Faculty, Medical University of Warsaw, Warsaw, Poland.
authors: Kamil
authors: K
authors: Zalewski
authors: Department of Gynecology and Gynecologic Oncology, Kliniken-Essen-Mitte, Essen, Germany ; Department of Oncology, Poznan University of Medical Sciences, Polska.
authors: Jacek P
authors: JP
authors: Grabowski
authors: Department of Oncology, Poznan University of Medical Sciences, Polska.
authors: Marcin
authors: M
authors: Mardas
authors: Distinction Language Centre, Gdansk, Poland.
authors: Steven
authors: S
authors: Jones
authors: Obstetric Department, Medical University of Gdańsk, Poland.
authors: Małgorzata
authors: M
authors: Pietrzak-Stukan
authors: Department of Gynecologic Oncology, Gdynia Oncology Center, Gdynia, Poland.
authors: Mirosław
authors: M
authors: Dudziak
keywords: adaptation; endometrial cancer; quality of life; questionnaire; translation