EORTC_QLQ_C30_Version3 v.1

The EORTC QLQ-C30 (version 3) quality of life questionnaire (QLQ) is an integrated system for assessing the health-related quality of life (QoL) of cancer patients participating in international clinical trials.

Syeeda S Farruque

models@cambiocds.com

© 1995 All rights reserved - EORTC Data Center

The EORTC (European Organisation for Research and Treatment of Cancer) quality of life questionnaire (QLQ) is an integrated system for assessing the health-related quality of life (QoL) of cancer patients participating in international clinical trials.

Version 3.0 is currently the standard version of the QLQ-C30, and should be used for all new studies unless investigators wish to maintain compatibility with previous studies, which used an earlier version of the QLQ-C30. General principles of scoring The QLQ-C30 is composed of both multi-item scales and single-item measures. These include five functional scales, three symptom scales, a global health status / QoL scale, and six single items. Each of the multi-item scales includes a different set of items - no item occurs in more than one scale. All of the scales and single-item measures range in score from 0 to 100 and require transformation as described in the scoring procedure (ref. 5) The principle for scoring these scales is the same in all cases: 1. Estimate the average of the items that contribute to the scale; this is the raw score(RS). 2. Use a linear transformationto produce a Transformed Score (TS) to standardise the raw score, so that scores range from 0 to 100; a higher score represents a higher (\"better\") level of functioning or global health status, or a higher (\"worse\") level of symptoms. All rights reserved. No part of this manual covered by copyrights hereon may be reproduced or transmitted in any form or by any means without prior permission of the copyright holder. The EORTC QLQ-C30 (in all versions), and the modules which supplement it, are copyrighted and may not be used without prior written consent of the EORTC Data Center.

The EORTC QLQ-C30 (in all versions), and the modules which supplement it, are copyrighted and may not be used without prior written consent of the EORTC Data Center. It should also be accompanied with sound clinical assessment when results are not clear or otherwise ambiguous.

Ref 1: Aaronson NK, Ahmedzai S, Bergman B, Bullinger M, Cull A, Duez NJ, Filiberti A, Flechtner H, Fleishman SB, de Haes JCJM, Kaasa S, Klee MC, Osoba D, Razavi D, Rofe PB, Schraub S, Sneeuw KCA, Sullivan M, Takeda F. Ref. 2: The European Organisation for Research and Treatment of Cancer QLQ-C30: A quality-of-life instrument for use in international clinical trials in oncology. Journal of the National Cancer Institute 1993; 85: 365-376. Ref. 3: A license is needed in order to use the protocol in healthcare setting (free of charge). accessed at: http://groups.eortc.be/qol/eortc-qlq-c30 Requests for permission to use the EORTC QLQ-C30 and the modules, or to reproduce or quote materials contained in this manual, should be addressed to: QL Coordinator Quality of Life Unit, EORTC Data Center, Avenue E Mounier 83 - B11, 1200 Brussels, BELGIUM Tel: +32 2 774 1611 Fax: +32 2 779 4568 Email: abo@eortc.be Ref. 4: The protocol, tool and manual are all designed from the Quality of Life Unit, EORTC Data Center. The protocol can be accessed at: http://groups.eortc.be/qol/sites/default/files/img/slider/specimen_qlq-c30_english.pdf Ref. 5: Fayers PM, Aaronson NK, Bjordal K, Groenvold M, Curran D, Bottomley A, on behalf of the EORTC Quality of Life Group. The EORTC QLQ-C30 Scoring Manual (3rd Edition).Published by: European Organisation for Research and Treatment of Cancer, Brussels 2001. Scoring manual accessed at: http://www.eortc.be/qol/files/SCManualQLQ-C30.pdf Ref. 6: Latest information about development of the QLQ-C30 and its modules may be found on the EORTC Quality of Life web pages, at: http://www.eortc.be/home/qol/

OBSERVATION.eortc_qlq_c30.v1