16 , 17 Lindsay et al showed a highly significant test-retest correlation of this question over 3-month intervals demonstrating stability over time, but also a sensitivity to change. 16 In our study, the question was asked at two different time points, at an approximately 3-month interval (before and after transfer), making it a valid method of evaluating quality of life changes with the modality transfer.
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Quality of Life and Hemodynamic Effects of Switching From Hemodialysis to Hemodiafiltration: A Canadian Controlled Cohort Study.
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