Table 1.

Demographic characteristics of the cohort by scintigraphic abnormality.

Joint Site	Scintigraphic Finding	N	Age Mean (SD)	BMI Mean (SD)	Gender (% male)
Ankle	None Abnormal	109	62.9 (11.9)	30.2 (5.8)	24.7%
	Any Abnormal	49	65.4 (11.6)	33.7 (7.9)	26.5%
	Group Difference		−2.59	−3.4	0.91
	(95% CI)		(−6.6, 1.4)	(−5.7, −1.2)	(0.42, 1.97)
	p value		0.20	0.0025	0.81
Forefoot	None Abnormal	79	61.7 (11.8)	30.0 (5.3)	31.6%
	Any Abnormal	79	65.6 (11.7)	32.6 (7.6)	19.0%
	Group Difference		−3.94	−2.62	1.98
	(95% CI)		(−7.6, −0.2)	(−4.7, −0.5)	(0.94, 4.12)
	p value		0.036	0.014	0.070

Group difference by Student’s t-test for age and BMI, and by odds ratio for gender.