Patellar Tendon Properties and Lower Limb Function in Rheumatoid Arthritis and Ankylosing Spondylitis versus Healthy Controls: A Cross-Sectional Study

Table 1

Participant anthropometric characteristics. Presented are the data (mean ± SEM) of RA patients (𝑛=18; 13 women) and their age- and sex-matched healthy controls (𝑛=18) as well as the data of AS patients (𝑛=12; 4 women) and their age- and sex-matched controls (𝑛=12).

	RA study			AS study
	RA patients (𝑛 = 18)	Healthy controls (𝑛 = 18)	𝑃 value	AS patients (𝑛 = 12)	Healthy controls (𝑛 = 12)	𝑃 value
Age (years)	59 ± 2.8	58 ± 3.2	0.35	53.7 ± 3.3	54.8 ± 3.3	0.68
Height (m)	1.65 ± 0.01	1.69 ± 0.03	0.21	1.66 ± 0.03	1.74 ± 0.02	<0.001
Weight (kg)	75.1 ± 3.3	73.8 ± 3.2	0.98	79.0 ± 4.2	78.2 ± 2.9	0.89
BMI	27.4 ± 1.0	26.0 ± 1.2	0.61	28.7 ± 1.07	25.7 ± 0.9	0.08