Table 1. Summary of baseline data of patients with sacroiliac joint (SIJ) pain, pain duration and numerical rating scale (NRS) data.

Mean values ± standard deviations are given. BMI = body mass index

			SIJ patients	controls
Age		[years]	45.1±11.0	43.7±19.9
Height		[m]	1.7±0.1	1.7±0.1
Weight		[kg]	73.2±11.3	68.1±9.3
BMI		[kg/m2]	24.9±3.4	24.2±3.9
Pain duration		[months]	54.5±49.7
Numerical rating scale	last 2 weeks		5.0±1.9
	no belt		4.0±1.8
	moderate tension		3.4±2.1
	maximum tension		4.0±1.9