Table 1 Detailed characteristics of study samples
From: DNA methylation age is not affected in psoriatic skin tissue
Sample characteristics | Psoriasis patients | Health controls | P value | |
|---|---|---|---|---|
PP | PN | NN | ||
Number | 114 | 41 | 62 | – |
Sex | ||||
 Male | 66 | 26 | 25 | 0.032 |
 Female | 48 | 15 | 37 | |
Age | ||||
 Range | 10.0–76.0 | 15.0–73.0 | 15.0–75.0 | 0.91 |
 Mean ± SD | 37.3 ± 14.4 | 37.6 ± 15.5 | 40.8 ± 14.6 | |
BMI | ||||
 Range | 16.6–32.8 | 17.3–28.3 | 16.8–29.1 | 0.99 |
 Mean ± SD | 22.8 ± 2.9 | 22.4 ± 2.3 | 22.3 ± 2.8 | |
PASI | ||||
 Range | 0.6–16.0 | – | – | – |
 Mean ± SD | 4.1 ± 3.1 | – | – | |
Smoking status | ||||
 Current | 24 | 8 | 15 | 0.038 |
 Former | 13 | 3 | 8 | |
 Never | 77 | 30 | 39 | |