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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Osteoarthritis Cartilage. 2013 Jul 16;21(11):1693–1699. doi: 10.1016/j.joca.2013.07.008

Table 2.

Baseline prevalence of ankle and forefoot abnormalities in the POP knee OA cohort.

Clinical characteristic Unilateral Bilateral Any Side
Abnormal Ankle Bone Scans
N (% of individuals)		 28
(17.6%)		 21
(13.2%)		 49
(30.8%)
Abnormal Forefoot Bone Scans
N (% of individuals)		 29
(18.2%)		 50
(31.5%)		 79
(49.7%)
Ankle Symptoms
N (% of individuals)		 17
(10.7%)		 19
(12.0%)		 36
(22.6%)
Self-reported ankle Injury
N (% of individuals)		 7
(2.2%)		 0
(0%)		 7
(4.4%)
Self-reported ankle surgery
N (% of individuals)		 5
(1.6%)		 2
(0.6%)		 7
(4.4%)
Self-reported ankle injury or
surgery
N (% of individuals)		 12
(3.8%)		 2
(0.6%)		 14
(8.8%)