Skip to main content

Table 2 Minimum Important Difference (MID's) and Effect Sizes (SRM's)

From: What is the relationship between the minimally important difference and health state utility values? The case of the SF-6D

Study/patient group N MID – Mean change in SF-6D (95% CI)* Standard Deviation Effect Size (SRM) (95% CI)* 0.5 of a Standard Deviation
Older adults 1st follow-up 1362 0.039 (0.034 to 0.044) 0.099 0.39 (0.35 to 0.45) 0.050
Older adults 2nd follow-up 948 0.026 (0.021 to 0.033) 0.096 0.27 (0.22 to 0.34) 0.048
IBS patients 56 0.023 (-0.001 to 0.050) 0.096 0.24 (-0.03 to 0.52) 0.048
IBS control patients 27 0.025 (-0.013 to 0.071) 0.113 0.22 (-0.15 to 0.62) 0.057
Leg ulcer patients 45 0.032 (-0.001 to 0.071) 0.131 0.24 (-0.06 to 0.53) 0.066
OA Knee patients 59 0.032 (0.015 to 0.049) 0.066 0.49 (0.22 to 0.73) 0.033
Limb reconstruction patients 29 0.048 (0.007 to 0.091) 0.120 0.40 (-0.02 to 0.79) 0.060
Early (RA) patients 99 0.039 (0.017 to 0.061) 0.112 0.33 (0.14 to 0.58) 0.056
COPD Patients 29 0.010 (-0.019 to 0.043) 0.087 0.11 (-0.28 to 0.47) 0.044
  1. *Bootstrap Bias-Corrected and accelerated (BCA) 95% Confidence Intervals.