M. Velten

Prof. M. Velten


Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 February 2011 in Breast Cancer Research and Treatment
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DKDelphine Klein
Delphine Klein
MMMariette Mercier
Mariette Mercier
EAEdwige Abeilard
Edwige Abeilard
MPMarc Puyraveau
Marc Puyraveau
ADArlette Danzon
Arlette Danzon
MVM. Velten
M. Velten

15 February 2014 in BMC Cancer
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Journal Article
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JJJérémie Jégu
Jérémie Jégu
MCMarc Colonna
Marc Colonna
LDLaetitia Daubisse-Marliac
Laetitia Daubisse-Marliac
BTBrigitte Trétarre
Brigitte Trétarre
OGOlivier Ganry
Olivier Ganry
MVM. Velten
M. Velten
Although cancer survivors are known to be at greater risk of developing second primary cancer (SPC), SPC incidence estimates in France are thus far lacking. We used a multivariate approach to compute these estimates and analyzed the effect of patient characteristics (gender, age at diagnosis, first cancer site, year of diagnosis and follow-up) on SPC risk.

1 January 2014 in Health and Quality of Life Outcomes
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ILIrawati Lemonnier
Irawati Lemonnier
FGFrancis Guillemin
Francis Guillemin
PAPatrick Arveux
Patrick Arveux
CCChristelle Clément-Duchêne
Christelle Clément-Duchêne
MVM. Velten
M. Velten
CBCédric Baumann
Cédric Baumann
Health-related quality of life (HRQoL) before treatment may predict survival of patients with non-small-cell lung cancer (NSCLC). We investigated the predictive role of HRQoL after the initial treatments, on the survival of these patients.

1 January 2014 in Health and Quality of Life Outcomes
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AAAmélie Anota
Amélie Anota
CMCaroline Mollevi
Caroline Mollevi
TCThierry Conroy
Thierry Conroy
FGFrancis Guillemin
Francis Guillemin
MVM. Velten
M. Velten
FBFranck Bonnetain
Franck Bonnetain
The occurrence of response shift (RS) in longitudinal health-related quality of life (HRQoL) studies, reflecting patient adaptation to disease, has already been demonstrated. Several methods have been developed to detect the three different types of response shift (RS), i.e. recalibration RS, 2) reprioritization RS, and 3) reconceptualization RS. We investigated two complementary methods that characterize the occurrence of RS: factor analysis, comprising Principal Component Analysis (PCA) and Multiple Correspondence Analysis (MCA), and a method of Item Response Theory (IRT). Breast cancer patients (n = 381) completed the EORTC QLQ-C30 and EORTC QLQ-BR23 questionnaires at baseline, immediately following surgery, and three and six months after surgery, according to the “then-test/post-test” design. Recalibration was explored using MCA and a model of IRT, called the Linear Logistic Model with Relaxed Assumptions (LLRA) using the then-test method. Principal Component Analysis (PCA) was used to explore reconceptualization and reprioritization. MCA highlighted the main profiles of recalibration: patients with high HRQoL level report a slightly worse HRQoL level retrospectively and vice versa. The LLRA model indicated a downward or upward recalibration for each dimension. At six months, the recalibration effect was statistically significant for 11/22 dimensions of the QLQ-C30 and BR23 according to the LLRA model (p ≤ 0.001). Regarding the QLQ-C30, PCA indicated a reprioritization of symptom scales and reconceptualization via an increased correlation between functional scales. Our findings demonstrate the usefulness of these analyses in characterizing the occurrence of RS. MCA and IRT model had convergent results with then-test method to characterize recalibration component of RS. PCA is an indirect method in investigating the reprioritization and reconceptualization components of RS.

3 December 2016 in Health and Quality of Life Outcomes
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AOAhmad Ousmen
Ahmad Ousmen
TCThierry Conroy
Thierry Conroy
FGFrancis Guillemin
Francis Guillemin
MVM. Velten
M. Velten
DJDamien Jolly
Damien Jolly
AAAmélie Anota
Amélie Anota
An important challenge of the longitudinal analysis of health-related quality of life (HRQOL) is the potential occurrence of a Response Shift (RS) effect. While the impact of RS effect on the longitudinal analysis of HRQOL has already been studied, few studies have been conducted on its impact on the determination of the Minimal Important Difference (MID). This study aims to investigate the impact of the RS effect on the determination of the MID over time for each scale of both EORTC QLQ-C30 and QLQ-BR23 questionnaires in breast cancer patients. Patients with breast cancer completed the EORTC QLQ-C30 and the EORTC QLQ-BR23 questionnaires at baseline (time of diagnosis; T0), three months (T1) and six months after surgery (T2). Four hospitals and care centers participated in this study: cancer centers of Dijon and Nancy, the university hospitals of Reims and Strasbourg At T1 and T2, patients were asked to evaluate their HRQOL change during the last 3 months using the Jaeschke transition question. They were also asked to assess retrospectively their HRQOL level of three months ago. The occurrence of the RS effect was explored using the then-test method and its impact on the determination of the MID by using the Anchor-based method. Between February 2006 and February 2008, 381 patients were included of mean age 58 years old (SD = 11). For patients who reported a deterioration of their HRQOL level at each follow-up, an increase of RS effect has been detected between T1 and T2 in 13/15 dimensions of QLQ-C30 questionnaire, and 4/7 dimensions of QLQ-BR23 questionnaire. In contrast, a decrease of the RS effect was observed in 8/15 dimensions of QLQ-C30 questionnaire and in 5/7 dimensions of QLQ-BR23 questionnaire in case of improvement. At T2, the MID became ≥ 5 points when taking into account the RS effect in 10/15 dimensions of QLQ-C30 questionnaire and in 5/7 dimensions of QLQ-BR23 questionnaire. This study highlights that the RS effect increases over time in case of deterioration and decreases in case of improvement. Moreover, taking the RS into account produces a reliable and significant MID.

8 June 2012 in BMC Pediatrics
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BGBruno Grollemund
Bruno Grollemund
GAGUEDENEY Claude Antoine
GUEDENEY Claude Antoine
MVMarie-Paule Vazquez
Marie-Paule Vazquez
APArnaud Picard
Arnaud Picard
VSVéronique Soupre
Véronique Soupre
ADAnne Danion-Grilliat
Anne Danion-Grilliat
The birth of a child with a cleft lip, whether or not in association with a cleft palate, is a traumatic event for parents. This prospective, multidisciplinary and multi-centre study aims to explore the perceptions and feelings of parents in the year following the birth of their child, and to analyse parent–child relationships. Four inclusion centres have been selected, differing as to the date of the first surgical intervention, between birth and six months. The aim is to compare results, also distinguishing the subgroups of parents who were given the diagnosis in utero and those who were not.