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Table 1 General information for all studies selected (N = 46)

From: Distribution- and anchor-based methods to determine the minimally important difference on patient-reported outcome questionnaires in oncology: a structured review

  Number Percent
Disease stage
 Metastatic / Advanced 20 43.5
 Non metastatic / Local 5 10.9
 Both 12 26.1
 Unclear or not reported 9 19.5
Type of study
 Randomized clinical trials 10 21.7
 Prospective cohort study 23 50
 Other 13 28.3
International study
 Yes 9 19.6
 No 37 80.4
Multicenter study
 Yes 22 47.8
 No 13 28.3
 Unclear or not reported 11 23.9
Questionnaires
 EORTC QLQ-C30 10 21.7
 EORTC QLQ-C15-PAL 2 4.3
 EORTC specific modules 6 13.0
 FACT-G 1 2.2
 Other FACT questionnaires 13 21.7
 Other multidimensional questionnaires 8 17.4
 Other specific PRO questionnaires 13 28.2