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 5 min 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 5 min on a treadmill. This makes this cut-off limit of interest for routine use, regardless of age.
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 5 min 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 5 min on a treadmill. This makes this cut-off limit of interest for routine use, regardless of age.
Authors: Bryan P Yan; James Y Lau; Check-Man Yu; Kim Au; Ka-Wai Chan; Doris S Yu; Ronald C Ma; Yat-Yin Lam; William R Hiatt Journal: Vasc Med Date: 2011-06 Impact factor: 3.239
Authors: G Mahe; N Ouedraogo; M Vasseur; C Faligant; K Saidi; G Leftheriotis; P Abraham Journal: Eur J Vasc Endovasc Surg Date: 2010-11-30 Impact factor: 7.069
Authors: David N Proctor; Elizabeth B Fauth; Lesa Hoffman; Scott M Hofer; Gerald E McClearn; Stig Berg; Boo Johansson Journal: Aging Clin Exp Res Date: 2006-12 Impact factor: 3.636
Authors: M Verspaget; S P A Nicolaï; L M Kruidenier; R J Th J Welten; M H Prins; J A W Teijink Journal: Eur J Vasc Endovasc Surg Date: 2008-11-12 Impact factor: 7.069
Authors: Karin S Coyne; Mary Kay Margolis; Kim A Gilchrist; Susan P Grandy; William R Hiatt; Andrea Ratchford; Dennis A Revicki; William S Weintraub; Judith G Regensteiner Journal: J Vasc Surg Date: 2003-08 Impact factor: 4.268
Authors: Annaïg Miossec; Quentin Tollenaere; Damien Lanéelle; Antoine Guilcher; Antoine Métairie; Estelle Le Pabic; Awenig Carel; Alexis Le Faucheur; Guillaume Mahé Journal: Front Cardiovasc Med Date: 2021-04-20