. Author manuscript; available in PMC: 2018 May 24.

Published in final edited form as: J Magn Reson Imaging. 2017 May 4;47(1):78–90. doi: 10.1002/jmri.25750

TABLE 1.

Demographics and Clinical Characteristics of the Two Osteoarthritis Severities Groups Defined as KL>1 and KL 0–1

Demographic characteristics (N = 178)
Characteristics
	KL > 1 (N = 57)	KL 0–1 (N = 121)	P-value
Sex^a
Male	22 (38.5%)	49 (40.5%)	0.66
Female	35 (61.5%)	72 (61.5%)
Age (years)^b	57.30 ± 8.9	49.19 ± 8.33	6.20E-08
BMI (kg/m²)^b	25.08 ± 3.37	24.35 ± 3.54	0.244
Race^a
Caucasian	32 (56.1%)	60 (49.6%)	0.55
Asian	14 (24.6%)	42 (33.9%)
African American	7 (12.3%)	5 (4.1%)
Latino	4 (7.1%)	15 (12.7%)

Data expressed as count (percentage %).

Data expressed as mean ± standard deviation.