Table 1. Characteristics of psoriatic arthritis patients and healthy controls.

		Patient group (n=		51)			Control group (n		=50)		p
		n	%	Mean±SD	Median	IQR	n	%	Mean±SD	Median		IQR
Age (year)				47	41-52				48.5	40.7-56	0.74
Sex											0.9
Female	27	53				26	52
Height (cm)			165.9±8.1					166.1±8.2			0.91
Weight (kg)			77.5±10.5					75.7±10.9			0.49
Body mass index (kg/m2)			28.1±4.5					27.5±3.6			0.51
Waist circumference (cm)			96.6±11.8					95±9.2			0.43
Smoking (ever or current)	26	51				23	46				0.6
SD: Standard deviation; IQR: Interquartile range.