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. 2013 Mar;13(1):47–55. doi: 10.4314/ahs.v13i1.7

Table 1.

Demographic features of the patients and healthy controls

Feature	RA group n=71	AS group n=72	OA group n=74	HC group n=70
Age (years)	45.30±10.55^a	31.24±8.72^b	48.70±7.14^c	41.39±4.21^d
Gender female/male	49/22^a	17/55^b	50/24^a	26/44^b
Body mass index	27.65±5.49^a	25.12±4.30^a	30.89±5.10^b	26.46±3.84^ab
(BMI) kg/m²

(Means which get different lower case express statistically significant difference p<0.05)