. Author manuscript; available in PMC: 2015 Jul 1.

Published in final edited form as: Osteoarthritis Cartilage. 2014 May 21;22(7):912–917. doi: 10.1016/j.joca.2014.05.013

Table 1.

Descriptive baseline characteristics of the population (n = 157) and comparison to the other IDEA participants (n = 297) not included in this analysis.

	Alignment Cohort N = 157		Others N = 297	P-value

Variable	N (%)		N (%)

Gender
Female, n (%)	108 (69)		325 (72)	0.34

Race
White, n (%)	129 (82)		377 (83)

	Mean (SD)	Range	Mean (SD)

BMI (kg • m⁻²)	33.4 (3.7)	27.0 – 41.3	33.6 (3.7)	0.38

Body mass (kg)	92.6 (13.9)	66.9 – 145.6	92.9 (14.7)	0.78

Age (years)	66 (6)	55 – 84	66 (6)	0.95

WOMAC function	22.9 (10.8)	0 – 48	24.2 (10.9)	0.07

Walking speed (m·s⁻¹)	1.2 (0.2)	0.7 – 1.9	1.2 (0.2)	0.33