Table 1:

Measurement of the Physical Frailty Phenotype among KT recipients.

Frailty Component	Measurement	Categorization
Unintentional Weight Loss	Recipient’s self-reported:  Current weight  Weight 1 year ago  Whether or not the weight loss was intentional	Recipients reporting unintentional loss of ≥10lb (≥4.5 kg) in the past year are considered to have this component present Note: Must be adapted for KT recipients who are undergoing dialysis by ascertaining dry weight
Exhaustion	2 questions from the CES-D scale:  “everything I did was an effort”  “I could not get going”	Recipients reporting feeling exhausted for ≥3 days in the past week based on either question are considered to have this component present
Physical Activity	Short version of the Minnesota Leisure Time Physical Activity questionnaire Kilocalories expended/week: calculated using a standardized algorithm based on the days of physical activity, duration of activity, and number of kilocalories expended/minute	Recipients are considered to have this component present if they expended:  <383 kcal/week for male recipients  <270 kcal/week for female recipients
Walking Speed	Three timed regular paced walk for 15 ft (4.5 m)	Recipients are considered to have this component present if their walking speed is:  ≥7 seconds for men who are ≤173 cm  ≥6 seconds for men who are >173 cm  ≥7 seconds for women who are ≤159 cm  ≥6 seconds for women who are >159 cm
Grip Strength	Jamar handheld dynamometer in kg	Recipients are considered to have this component present if their grip strength is:
		Male recipients	kg
		BMI ≤24.0	≤29
		BMI = 24.1–28.0	≤30
		BMI > 28.0	≤32
		Female recipients
		BMI ≤23.0	≤17
		BMI = 23.1–26.0	≤17.3
		BMI = 26.1–29.0	≤18
		BMI > 29.0	≤21