TABLE 3.
Characteristics of patients with and without nail involvement (n=57)*
| Characteristic | With nail | Without nail | p** |
|---|---|---|---|
| changes | changes | ||
| (n=30) | (n= 27) | ||
| Female gender | 16 (53.3) | 19 (70.4) | 0.295 |
| Age, years | 51.8±15 | 45.1±14.3 | 0.090b |
| Disease onset, | 27.6±14.9 | 42.7±15.9 | 0.001b |
| yearsa | |||
| <20 | 12 (40) | 2 (7.4) | 0.011 |
| 20-59 | 17 (56.6) | 21 (77.7) | 0.011 |
| ≥60 | 1 (3.3) | 4 (14.8) | 0.011 |
| Disease duration, | 17.5±10.7 | 9.1±9.7 | 0.001c |
| yearsa | |||
| PASIa | 11.1±8.3 | 6.5±6.1 | 0.044c |
| ≤10 | 16 (53.3) | 22 (81.5) | 0.049 |
| >10 | 14 (46.7) | 5 (18.5) | 0.049 |
| Family history | 12 (40) | 2 (7.4) | 0.011 |
| of psoriasis | |||
| Comorbidities | 19 (63.3) | 20 (70.1) | 0.623 |
| Psoriatic arthritis | 13 (43.3) | 1 (3.7) | 0.002 |
PASI: psoriasis area and severity index.
*
The data are presented as number of individuals = n (%), unless otherwise described.
**
p values were calculated by Fisher’s exact test , unless otherwise described.
a
Statistical significance was established by the Chi square test.
b
Data are expressed as mean ± standard deviation .
c
Statistical significance was established by the t Student test.
d Data express the median and interquartile range values (P25-P75).
e Statistical significance was established by the Mann Whitney test.