Table 2.

US measurements of the fingers with psoriatic nail involvement compared to a control.

	Ps (272/406)	PsA (168/310)	Control (n = 298)	p
NP thickness (mm)	0.74 ± 0.14	0.72 ± 0.08	0.51 ± 0.12	<0.001
NB thickness (mm)	2.02 ± 0.39	2.03 ± 0.34	1.76 ± 0.22	0.003
Matrix thickness (mm)	1.97 ± 0.35	2.01 ± 0.24	1.89 ± 0.27	0.031
Tendon thickness (mm)	0.97 ± 0.14	1.10 ± 0.21	0.89 ± 0.11	<0.001

Results are presented as mean values and standard deviations (SD).

NP: nail plate; NB: nail bed;