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Table 1 Frailty Screening Instruments and Reference Standards Included in the Study

From: Feasibility and acceptability of commonly used screening instruments to identify frailty among community-dwelling older people: a mixed methods study

InstrumentFrailty ThresholdTraining required to administerTraining required to scoreEquipment requiredPhysical space required
Index Tests (Nurse-Administered)
 Edmonton Frail Scale≥ 8 pointsUse of stopwatch (TUG); Distance set upClock test; TUG; reverse scoringStopwatch; Distance Measure; Tape3 m straight corridor
 FRAIL Questionnaire≥ 3 pointsNoneMinimalNoneMinimal
 Gait Speed≤ 0.8 m/sUse of stopwatch; Distance set upMetres/second calculationStopwatch; Distance Measure; Tape4 m straight corridor
 Groningen Frailty Indicator≥ 4 pointsNoneReverse scoringNoneMinimal
 PRISMA-7≥ 3 pointsNoneMinimalNoneMinimal
Index Tests (Self-Administered)
 Kihon Checklist≥ 7 pointsNoneBMI CalculationNoneMinimal
 Reported Edmonton Frail Scale≥ 8 pointsNoneClock testNoneMinimal
Reference Standards
 Frailty Index (Self-Reported)> = 0.21NoneMinimalNoneMinimal
 Frailty Phenotype3 of 5 criteriaUse of stopwatch (Gait Speed); Distance set up; Use of dynamometer (Grip Strength)Extensive (PASE measure, Gait Speed incl. Height; Grip Strength incl. BMI)Stopwatch; Dynamometer; Scales; Height measure15 ft (4.6 m) straight corridor (Gait Speed); area to assess height, weight, conduct grip strength assessment
  1. Abbreviations: BMI Body Mass Index, PASE Physical Activity Scale for the Elderly, TUG Timed Up and Go