PMID- 21948650 OWN - NLM STAT- MEDLINE DCOM- 20120426 LR - 20211020 IS - 1549-490X (Electronic) IS - 1083-7159 (Print) IS - 1083-7159 (Linking) VI - 16 IP - 10 DP - 2011 TI - Time to deterioration in quality of life score as a modality of longitudinal analysis in patients with breast cancer. PG - 1458-68 LID - 10.1634/theoncologist.2011-0085 [doi] AB - PURPOSE: This prospective multicenter study explored different definitions of time to deterioration (TTD) in quality of life (QoL) scores, according to different cutoffs of the minimal clinically important difference (MCID) as a modality for longitudinal QoL assessment in breast cancer patients. METHODS: QoL was assessed using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 and BR-23 before surgery, after surgery, and 6 and 12 months later. The global health score, arm symptoms score (BRAS), and breast symptoms score were analyzed. For a given baseline score, QoL was considered to have deteriorated if this score decreased by >/=5 points at any time point after baseline. Analyses were repeated using an MCID of 10 points and taking the score after surgery as the reference score (to explore the occurrence of response shift). TTD was calculated using the Kaplan-Meier method and Cox regression was used to identify independent factors associated with TTD. RESULTS: Two hundred thirty-five patients underwent axillary lymph node dissection (ALND), 222 underwent sentinel lymph node biopsy (SLNB), and 61 underwent SLNB plus ALND. Patients who underwent SLNB had a significantly longer TTD for the BRAS dimension than those who underwent ALND. Cox multivariate analyses showed that treatment using SLNB and age >59 years were independently associated with longer TTD for the BRAS, whereas surgery elsewhere than at the Centre Georges Francois Leclerc was associated with a shorter TTD. CONCLUSION: Exploration of different definitions of TTD in QoL provides meaningful longitudinal QoL results for clinicians. FAU - Hamidou, Zeinab AU - Hamidou Z AD - Unite de Biostatistiques et d'Epidemiologie, Centre Georges Franc ois Leclerc, Dijon, France. FAU - Dabakuyo, Tienhan S AU - Dabakuyo TS FAU - Mercier, Mariette AU - Mercier M FAU - Fraisse, Jean AU - Fraisse J FAU - Causeret, Sylvain AU - Causeret S FAU - Tixier, Herve AU - Tixier H FAU - Padeano, Marie-Martine AU - Padeano MM FAU - Loustalot, Catherine AU - Loustalot C FAU - Cuisenier, Jean AU - Cuisenier J FAU - Sauzedde, Jean-Marc AU - Sauzedde JM FAU - Smail, Marc AU - Smail M FAU - Combier, Jean-Philibert AU - Combier JP FAU - Chevillote, Patrick AU - Chevillote P FAU - Rosburger, Christian AU - Rosburger C FAU - Arveux, Patrick AU - Arveux P FAU - Bonnetain, Franck AU - Bonnetain F LA - eng PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20110923 PL - England TA - Oncologist JT - The oncologist JID - 9607837 SB - IM MH - Aged MH - Aged, 80 and over MH - Breast Neoplasms/*pathology/surgery MH - Cohort Studies MH - Female MH - Humans MH - Longitudinal Studies MH - Lymph Node Excision MH - Middle Aged MH - Neoplasm Staging MH - Prospective Studies MH - *Quality of Life MH - Sentinel Lymph Node Biopsy PMC - PMC3228064 COIS- Disclosures: Zeinab Hamidou: None; Tienhan S. Dabakuyo: None; Mariette Mercier: None; Jean Fraisse: None; Sylvain Causeret: None; Herve Tixier: None; Marie-Martine Padeano: None; Catherine Loustalot: None; Jean Cuisenier: None; Jean-Marc Sauzedde: None; Marc Smail: None; Jean-Philibert Combier: None; Patrick Chevillote: None; Christian Rosburger: None; Patrick Arveux: None; Franck Bonnetain: None. The content of this article has been reviewed by independent peer reviewers to ensure that it is balanced, objective, and free from commercial bias. No financial relationships relevant to the content of this article have been disclosed by the authors or independent peer reviewers. EDAT- 2011/09/29 06:00 MHDA- 2012/04/27 06:00 PMCR- 2012/10/01 CRDT- 2011/09/28 06:00 PHST- 2011/09/28 06:00 [entrez] PHST- 2011/09/29 06:00 [pubmed] PHST- 2012/04/27 06:00 [medline] PHST- 2012/10/01 00:00 [pmc-release] AID - theoncologist.2011-0085 [pii] AID - 3725806 [pii] AID - 10.1634/theoncologist.2011-0085 [doi] PST - ppublish SO - Oncologist. 2011;16(10):1458-68. doi: 10.1634/theoncologist.2011-0085. Epub 2011 Sep 23.