Diagnosis of subclinical psoriatic arthritis in patients with psoriasis using CASPAR criteria: a sonographic study

Egyptian Rheumatology and Rehabilitation

Table 5 Correlation between quadricipital tendon thickness and other variables

	Quadricipital tendon thickness
	r	P
Age	0.28	0.09
Disease duration	− 0.07	0.68
BMI	0.07	0.73
PASI	− 0.21	0.3
Total number of thickened tendons per patient	0.6	0.000^*
Total number of enthesophytes per patient	0.52	0.001^*
Total GUESS score	0.67	0.000^*

^*P ≤ 0.05 was considered significant and was based on Spearman’s test
BMI Body mass index, PASI Psoriasis Area and Severity Index, GUESS Glasgow Ultrasound Enthesitis Scoring System