caa a22 4500 606179852 CHVBK 20210128100803.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s11136-015-0915-9 doi (NATIONALLICENCE)springer-10.1007/s11136-015-0915-9 The correlation of the "Walking Estimated-Limitation Calculated by History” (WELCH) questionnaire with treadmill maximal walking time is not impaired by age, in patients with claudication [Elektronische Daten] [Alban Fouasson-Chailloux, Pierre Abraham, Bruno Vielle, Isabelle Laporte, Loukman Omarjee, Nafi Ouedraogo] Purpose: The "Walking Estimated-Limitation Calculated by History” (WELCH) questionnaire is a short four-item questionnaire that estimates the walking capacity of a patient in comparison with relatives, friends or people the same age. As such, it should be relatively insensitive to age, yet this has never been tested. Methods: A prospective study was performed among 525 patients presenting vascular-type claudication. Patients were grouped into quintiles of age—from quintile 1 for the youngest patients to quintile 5 for the oldest ones. Patients completed a self-administered questionnaire and then had their maximal walking time (MWT) measured on a treadmill. We estimated the coefficient of correlation, the slope and the intercept of the relationship between the WELCH score and the MWT, then the accuracy of a WELCH score under 25 to predict the ability to walk for 5min on a treadmill. Results: The slopes of the relationships and the correlation coefficients were not significantly different in each quintile, but a significant shift in the intercept of regressing lines was found with age. Nevertheless, the accuracy in predicting treadmill results from the WELCH score with a cut-off point of 25 was, respectively, 68.6, 72.4, 80.0, 72.4 and 73.3% in quintiles 1, 2, 3, 4 and 5 (p=0.45). Conclusions: The relationship of MWT on a treadmill and the WELCH score is slightly influenced by age, but a score superior to 25 seems to be of equal discriminatory performance in different quintiles of age to predict the ability to walk for 5min on a treadmill. This makes this cut-off limit of interest for routine use, regardless of age. Springer International Publishing Switzerland, 2015 Walking impairment nationallicence Claudication nationallicence Peripheral arterial disease nationallicence Exercise testing nationallicence Questionnaires nationallicence Quality of life nationallicence Fouasson-Chailloux Alban CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut Abraham Pierre CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut Vielle Bruno Department of Biostatistics, University Hospital, 49933, Angers Cedex 09, France aut Laporte Isabelle CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut Omarjee Loukman CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut Ouedraogo Nafi CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut Quality of Life Research Springer International Publishing 24/8(2015-08-01), 1857-1864 0962-9343 24:8<1857 2015 24 11136 https://doi.org/10.1007/s11136-015-0915-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11136-015-0915-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fouasson-Chailloux Alban CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut NATIONALLICENCE 700 1- Abraham Pierre CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut NATIONALLICENCE 700 1- Vielle Bruno Department of Biostatistics, University Hospital, 49933, Angers Cedex 09, France aut NATIONALLICENCE 700 1- Laporte Isabelle CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut NATIONALLICENCE 700 1- Omarjee Loukman CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut NATIONALLICENCE 700 1- Ouedraogo Nafi CHU Angers, Laboratory for Vascular Investigations, University Hospital, 4 rue Larrey, 49933, Angers Cedex 09, France aut NATIONALLICENCE 773 0- Quality of Life Research Springer International Publishing 24/8(2015-08-01), 1857-1864 0962-9343 24:8<1857 2015 24 11136