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Table 6 Minimal important change values of the 10 measurement instruments of mobility (n = 63)

From: Responsiveness and interpretability of commonly used outcome assessments of mobility capacity in older hospital patients with cognitive spectrum disorders

  1. Green shaded values indicate ‘valid’ anchor-based MIC values according to Spearman’s rho correlation ≥ 0.3 between the instrument’s change scores and the anchor
  2. MIC Minimal important change, rho Spearman’s rho correlation coefficient between anchor and instrument’s change score, COSMIN COnsensus-based Standards for the selection of health Measurement Instruments, WPCS within-patient change score, SEN sensitivity, SPE specificity, SD standard deviation, SEM standard error of measurement, FAC Functional Ambulation Categories, HABAM Hierarchical Assessment of Balance and Mobility, POMA Performance Oriented Mobility Assessment, P-GRC-I patient-reported global rating of change importance scale, T-GRC-I therapist-reported global rating of change importance scale, FAC-C Functional Ambulation Categories change anchor
  3. †Not calculated because of small sample size (< 10 participants)
  4. #FAC-C anchor-based analysis and SEM calculation not possible for the FAC change scores
  5. aChange scores for improvement are negative, but MIC values are reported positive
  6. bMIC values are based on the baseline sample participants reported in Braun et al. 2018 [35]
  7. cMIC values are based on the test–retest reliability sample reported in Braun et al. 2019 [36]
  8. Anchor P-GRC-I: Included in analysis (n = 54): not importantly changed (n = 24), importantly improved (n = 30). Excluded from analysis (n = 9): deteriorated (n = 5), GRC missing (n = 4)
  9. Anchor T-GRC-I: Included in analysis (n = 54): not importantly changed (n = 24), importantly improved (n = 30). Excluded from analysis (n = 9): deteriorated (n = 3), GRC missing (n = 6)
  10. Anchor FAC-C: Included in analysis (n = 61): unchanged (n = 41), changed/improved (n = 20). Excluded from analysis (n = 2): deteriorated (n = 2), GRC missing (n = 0)