The purpose of this study is to test and validate a new questionnaire in order to get a "walking estimated limitation calculated by history (WELCH) in patients referred for vascular investigations.
Two questionnaires the WELCH and the "walking impairment questionnaire" (WIQ) are submitted to patients referred for vascular investigations for suspêcted peripheral arterial disease (PAD). Comparison of score to hemodynamic parameters (first goal) or maximal walking distance (MWD) on treadmill (secondary goal). Scoring of the WIQ is performed according to references. Scoring of the WELCH has been submitted for copyright protection (involves a series of 4 additions a subtraction and a single multiplication)
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
800
Self completed questionnaire, Supervised by the physician Ankle brachial index (ABI) calculation Maximal walking distance (MWD) on treadmill or over the 6 minutes walking test (when available)
Vascular investigation
Angers, France
RECRUITINGVascular Medicine
Annecy, France
Proportion of questionnaires with errors after self completion
Analysis of first inclusion only in patients that are included multiple times over the study period. Predetermined score for the WELCH questionnaire answers \[(4 items); (4 additions \& 1 multiplication)\] and WIQ... estimation of the percentage of errors with 95% confidence interval. Comparison of the two percentages
Time frame: 1 day
Correlation with ankle brachial index (ABI)
Analysis of first inclusion only in patients that are included multiple times over the study period. Calculation of questionnaire scores from predetermined methods and analysis of the coefficient of determination and coefficient of correlation to minimal ABI
Time frame: 1 day
Correlation with treadmill result
Analysis of first inclusion only in patients that are included multiple times over the study period.Calculation of questionnaires score from predetermined methods and analysis of the coefficient of determination and coefficient of correlation to maximal walking distance on treadmill, in the subgroup of patients that have a routine treadmill scheduled during the visit.
Time frame: 1 day
Facility of the scoring of the questionnaires
Proportion of WELCH scores calculated by physician and comparison to the proportion of WIQ score calculated by physicians as a estimation of the facility to calculate the score by mental calculation in routine
Time frame: 1 day
Reliability of the questionnaire
Comparison of the scores of the WELCH in the patients that may be seens within 3 weeks of their first inclusion, for any reasons, (e.i. seen first for a doppler and two weeks later for a treadmill test)over the study period. Analysis of the reliability through the coefficient of variation of the score.
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Vascular Medicine
Aubenas, France
RECRUITINGRehabilitation
Ballan-Miré, France
RECRUITINGVascular Medicine
Belfort, France
RECRUITINGVascular Medicine
Caen, France
RECRUITINGVascular Medicine
Castanet-Tolosan, France
RECRUITINGVascular Medicine
Champagnole, France
RECRUITINGVascular Medicine
Chazelles-sur-Lyon, France
RECRUITINGRehabilitation
Hauteville, France
RECRUITING...and 8 more locations
Time frame: 3 weeks
sensitivity of the WELCH to changes
Comparison of the scores of the WELCH in the patients that may be seens within 1 year from their first inclusion, for any reasons, (e.i. seen follow up of their disease)over the study period. Analysis of the changes of the score to changes of the ABI. Analysis of the changes of the score to changes in maximal walking distance if available.
Time frame: 1 year