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Table 1 The nine longitudinal studies

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

Study/patient group Total study size Number who reported some change Period of time
Older adults (aged >65 years): 1st follow-up 4945 1362 Baseline to year 1
Older adults (aged >65 years): 2nd follow-up 3127 948 Year 1 to year 2
Irritable bowel syndrome (IBS) patients 137 56 Baseline to 3 months
Irritable bowel syndrome (IBS) control patients 177 27 Baseline to 3 months
Leg ulcer patients 194 45 Baseline to 3 months
Knee Osteoarthritis (OA) patients 157 59 Baseline to 6 months
Limb reconstruction patients 60 29 Baseline to year 1
Early Rheumatoid Arthritis (RA) patients 246 99 Baseline to year 1
Patients with Chronic Obstructive Pulmonary Disease (COPD) 60 29 Baseline to year 1
  1. Total study size = no. of patients with valid baseline and follow-up SF-6D score and follow-up global change score.
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