Correlation
REGRESSION
Few correlation coefficients between the EQ-5D-5L index and the subscales of disease-specific HRQOL instruments differed among the instrument orders. This finding suggests that only a small assimilation or contrast effect existed; alternatively, both these effects existed in the population, however, mutually nullified the discrepancy in the correlation. In either case, the order effects on the coefficients of the subscales in regression models for mapping algorithms were considered to be limited.