Nail Involvement in Patients with Psoriatic Arthritis in Northern Iran

Table 3

Morphologic features of nail changes.

Nail Features	All patients; (N= 197)	Patients without PsA; (N=102)	Patients with PsA; (N=95)	P Value
Pitting				0.34
Yes	62 (31.5%)	29 (28.4%)	33 (34.7%)
No	135 (68.5%)	73 (71.6%)	62 (65.3%)
Total Dystrophy				0.71
Yes	3 (1.5%)	0 (0)	3 (3.2%)
No	194 (98.5%)	102 (100%)	92 (96.8%)
Onycholysis				0.001
Yes	108 (54.8%)	43 (42.2%)	65 (68.4%)
No	89 (45.2%)	59 (57.8%)	30 (31.6%)
Oil Drop				0.013
Yes	45 (22.8%)	16 (15.7%)	29 (30.5%)
No	152 (77.2%)	86 (84.3%)	66 (69.5%)
Subungual hyperkeratosis				0.69
Yes	19 (9.6%)	9 (8.8%)	10 (10.5%)
No	178 (90.4%)	93 (91.2%)	85 (89.5%)
Splinter hemorrhage				0.05
Yes	12 (6.1%)	3 (2.9%)	9 (9.5%)
No	185 (93.9%)	99 (97.1%)	86 (90.5%)
Longitudinal ridging				0.28
Yes	4 (2%)	1 (1%)	3 (3.2%)
No	193 (98%)	101 (99%)	92 (96.8%)