. Author manuscript; available in PMC: 2020 Sep 22.

Published in final edited form as: J Am Geriatr Soc. 2020 Jul 7;68(7):1429–1437. doi: 10.1111/jgs.16517

Table 1.

Putative Sarcopenia Variables and Their Cut-Points

	Men	Women
Primary variables: identified by SDOC CART analysis⁸
Grip maximum value	<35.5 kg	<20 kg^a
Grip strength/BMI	<1.05 kg/kg/m^2,b	<.79 kg/kg/m²
Grip strength/TBF	<1.66 kg/kg^a	<.65 kg/kg
Grip/Arm lean mass	<6.08 kg/kg^a	<3.26 kg/kg
Grip/Weight	<.45 kg/kg^a	<.337 kg/kg
Secondary lean mass variables identified by previous efforts
ALM/ht^2,12	7.26 kg/m²	5.45 kg/m²
ALM¹³	<19.75 kg	15.02 kg

Abbreviations: ALM, appendicular lean mass; BMI, body mass index; CART, classification and regression tree analysis; SDOC, Sarcopenia Definitions and Outcomes Consortium; TBF, total body fat.

From Youden’s index.

This cut-point is from the primary CART analyses; another cut-point of Grip/BMI <1.46 was found for men with secondary walking speed outcome.