. Author manuscript; available in PMC: 2017 Jun 29.

Published in final edited form as: J Am Geriatr Soc. 2016 Jan;64(1):144–150. doi: 10.1111/jgs.13871

Table 1.

Descriptive Characteristics of Participants in Two Cohort Studies.

	AGES-REYKJAVIK		Health ABC		P-value
	N	Mean (SD) or %	N	Mean(SD) or %
Men	2082		919
Age (y)		76.6 (5.4)		78.4 (2.8)	<0.001
BMI (kg/m²)		26.85 (3.79)		27.04 (3.87)	0.21
Gait speed (m/s)		0.97 (0.21)		1.16 (0.23)	<0.001
Gait speed <0.8m/s		20.0%		5.7%	<0.001
Grip strength (kg)		39.1 (9.5)		37.1 (8.4)	<0.001
Leg extension strength (N-m)		168.0 (48.0)^†		111.3 (29.5)^‡	--
Women	2771		994
Age (y)		76.4 (5.6)		78.0 (2.8)	<0.001
BMI (kg/m²)		27.18 (4.79)		27.33 (5.42)	0.44
Gait speed (m/s)		0.91 (0.20)		1.06 (0.22)	<0.001
Gait speed <0.8m/s		28.4%		12.2%	<0.001
Grip strength (kg)		23.6 (5.9)		23.1 (5.8)	0.020
Leg extension strength (N-m)		96.1 (30.0)^†		69.7 (20.8)^‡	--

^†

Isometric measurement

^‡

Isokinetic measurement

P-value indicates differences by population. Isometric leg extension strength is shown for the AGES-REYKJAVIK cohort and isokinetic strength is shown for the Health ABC cohort. Leg extension strength could not be compared because of different measurement approaches.