Ultrasound Assessment of Changes in Nails in Psoriasis and Psoriatic Arthritis

Table 3

US measurements of the fingers without psoriatic nail involvement compared to control.

	Ps (132/380)	PsA (168/310)	Control (n=298)	p
NP thickness (mm)	0.59± 0.09	0.58± 0.07	0.51 ± 0.12	0.062
NB thickness (mm)	1.92±0.28	1.94±0.17	1.76 ± 0.22	0.027
Matrix thickness (mm)	1.90±0.14	1.93±0.19	1.88± 0.27	0.052
Tendon thickness (mm)	0.91±0.13	1.02±0.21	0.89±0.11^1	0.036

Results are presented as mean values and standard deviations (SD).
NP: nail plate; NB: nail bed.
=0.133 Ps versus control.