Table 1.

Baseline characteristics of subjects in the cross-sectional analyses.

	Controls	Overall OAA			TJA
	N = 2,125	All N = 1556	Hip N = 736	Knee N = 990	All N = 640	Hip N = 447	Knee N = 199
Female (%)	1,301 (61%)	1,554 (68%)	482 (66%)	700 (71%)	638 (70%)	313 (70%)	142 (72%)
Age (SD)	66.1 (10.1)	70.9 (10.3)	69.6 (11.9)	72.5 (8.6)	68.9 (12.2)	68.0 (13.1)	71.0 (9.3)
BMI (SD)	26.5 (3.9)	28.1 (4.5)	27.5 (4.4)	28.7 (4.5)	28.2 (4.6)	27.6 (4.6)	29.8 (4.1)

OA osteoarthritis, TJA Total joint arthroplasty.

^AOverall Radiographic OA as defined by KL-score ≥ 2 and/or total joint arthroplasty.