Individual measures of quality of life (QoL) have been initiated to overcome the possible limitations with standardized measures using predefined domains for evaluation. The Schedule for the Evaluation of Individual Quality of Life-Direct Weighting (SEIQoL-DW) uses personal interviews to explore the five most important areas in life, both positive and negative, crucial for QoL. The nominated areas are rated regarding satisfaction and weighted to capture the importance of each selected area. The Swedish version has been extended with a disease-specific module, which evaluates the areas in life influenced by disease. The aim of this study was to validate the disease-specific SEIQoL-DW and furthermore, to evaluate the influence of the importance ratings on the overall index score in a cohort of Hodgkin lymphoma survivors. The results support the construct validity of the disease-specific SEIQoL-DW and indicate that the instrument appears to be a sensitive measure with ability to differentiate between groups with disparate subjective health status. The SEIQoL-DW succeeds to capture both positive and negative areas in life influenced by disease. The present study gave no evidence that the weighting procedure has any impact on the total index. The results support the use of the new extended version including a disease-specific module.
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