Table 2.

Subject Characteristics^†

	All	Women	Men	p value
Incidence Cohort	(n=128)	(n=71)	(n=57)	t-test
Age (years)	50.7 ± 2.7	50.8 ± 2.5	50.6 ± 3.0	0.621
BMI (kg/m2)	23.7 ± 2.0	23.2 ± 2.1	24.3 ± 1.6	0.003*
PASE	190.8 ± 80.5	176.5 ± 80.8	208.5 ± 77.2	0.025*
Risk Factors‡				ChiSq
History of Knee Injury	36 (27%)	17 (23%)	19 (33%)	0.264
History of Knee Surgery	12 (9%)	2 (3%)	10 (17%)	0.004*
Heberden’s Nodes in Hands	19 (14%)	15 (20%)	4 (7%)	0.026*
Family History of Knee Replacement	19 (14%)	8 (11%)	11 (19%)	0.192
Normal Cohort	(n=33)	(n=25)	(n=8)	t-test
Age (years)	50.0 ± 2.8	49.8 ± 2.6	50.8 ± 3.7	0.394
BMI (kg/m2)	23.1 ± 2.2	22.8 ± 2.4	24.1 ± 1.3	0.133
PASE	169.5 ± 66.0	160.3 ± 71.0	196.9 ± 54.0	0.181

^†Values are expressed as mean ± SD unless otherwise noted

^‡Expressed as number of subjects (percentage)

^*Significantly different if p<0.05