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Table 2 Relative and absolute inter-rater reliability

From: Recommended motor assessments based on psychometric properties in individuals with dementia: a systematic review

  Variable Study Relative inter-rater reliability Absolute inter-rater reliability
ICC Rating Risk of bias Inconsistency Imprecision Indirectness Quality of evidence MDC95% Rating Risk of bias Inconsistency Imprecision Indirectness Quality of evidence
Balance
 FR Distance 1 study of adequate quality (n = 15) [14] 0.79 + Serious No n < 50 No Very low Not assessed
 GMWT Time 1 study of adequate/very good quality (n = 53) [43] 0.99 + Serious No n = 50–100 No Low 14.5% ? No No n = 50–100 No Moderate
Number of oversteps 1 study of adequate/very good quality (n = 53) [43] 0.99 + Serious No n = 50–100 No Low 17.1% ? No No n = 50–100 No Moderate
 BBS Score 3/2 studies of adequate/very good quality (n = 101/86) [14, 15, 43] 0.72–0.99 + No No No No High 5.9–7.1% ? No No n = 50–100 No Moderate
Mobility and gait
 TUG Time 2 studies/1 study of adequate/very good quality (n = 68/53) [14, 43] 0.98–0.99 + No No n = 50–100 No Moderate 7.9% +b No No n = 50–100 No Moderate
 6 m WT Walking speed 1 study of adequate/very good quality (n = 33) [15] 0.97 + Serious No n < 50 No Very low 15.7% +c No No n < 50 No Low
 4 m WT Time 1 study of adequate/very good quality (n = 53) [43] 0.82 + Serious No n = 50–100 No Low 98.0% -c/↓ No No n = 50–100 No Moderate
Strength
 ACSID Score 1 study of very good quality (n = 94) [99] 0.85 + No No n = 50–100 No Moderate Not assessed
 30s CST Repetitions 1 study of adequate/very good quality (n = 33) [15] 1.00 + Serious No n < 50 No Very low 0.0% ? No No n < 50 No Low
Endurance
 6 min WT Distance 1 study of adequate quality (n = 33)a [118] 0.97–0.99 + Serious No n < 50 No Very low Not assessed
Walking speed 1 study of adequate quality (n = 33)a [118] 0.96–0.98 + Serious No n < 50 No Very low Not assessed
  1. 4 m WT 4-m walk test, 6 m WT 6-m walk test, 6 min WT 6-min walk test, 30s CST 30-s chair stand test, ACSID Assessment of Compensatory Sit-to-Stand Maneuvers in People With Dementia, BBS Berg Balance Scale, FR Functional Reach Test, GMWT Groningen Meander Walking Test, ICC Intraclass correlation coefficient, MDC95% Percentage minimal detectable changes at 95% confidence interval, n Total number of participants, TUG Timed Up & Go Test.
  2. Rating according to COSMIN criteria for good measurement properties: + = sufficient, − = insufficient, ? = indeterminate, ↓ = unacceptable absolute inter-rater reliability.
  3. a inter-rater reliability was determined on 2 times of measurement, b minimal important change (TUG) = 10.1 s [17, 119], c minimal important change (walking speed) = 0.21 m/s [17, 119]