Table 1.
Descriptive statistics among specific groups of patients: erythrodermic atopic dermatitis, control group, erythrodermic psoriasis, erythrodermic variants of cutaneous T-cell lymphoma (CTCL).
| Atopic dermatitis (N = 20) | Control group (N = 20) | Psoriasis (N = 20) | CTCL (N = 16) | p-value | |
|---|---|---|---|---|---|
| Hair shaft | |||||
| Numerous pili torti | 0% (0/20) | 0% (0/20) | 0% (0/20) | 81% (13/16) | < 0.001 |
| Visible anagen bulbs | 0% (0/20) | 0% (0/20) | 0% (0/20) | 13% (2/16) | 0.053 |
| 8-shaped hairs | 0% (0/20) | 0% (0/20) | 0% (0/20) | 19% (3/16) | < 0.05 |
| Solitary pili torti | 0% (0/20) | 0% (0/20) | 0% (0/20) | 13% (2/16) | 0.053 |
| Numerous broken hairs | 0% (0/20) | 0% (0/20) | 0% (0/20) | 75% (12/16) | < 0.001 |
| Solitary broken hairs | 25% (5/20) | 0% (0/20) | 10% (2/20) | 19% (3/16) | 0.107 |
| Follicular ostia | |||||
| Yellow dots | 50% (10/20) | 30% (6/20) | 15% (0/20) | 88% (14/16) | < 0.05 |
| Black dots | 0% (0/20) | 0% (0/20) | 0% (0/20) | 25% (4/16) | < 0.01 |
| Blood vessels | |||||
| Linear perifollicular vessels | 5% (1/20) | 0% (0/20) | 0% (0/20) | 31% (5/16) | < 0.01 |
| Glomerular perifollicular vessels | 10% (2/20) | 0% (0/20) | 0% (0/20) | 50% (8/16) | < 0.001 |
| Glomerular regularly distributed vessels | 20% (4/20) | 5% (1/20) | 100% (20/20) | 50% (8/16) | < 0.01 |
| Dotted vessels | 95% (19/20) | 75% (15/20) | 10% (2/20) | 25% (4/16) | < 0.01 |
| Arborizing vessels | 20% (4/20) | 50% (10/20) | 0% (0/20) | 31% (5/16) | < 0.01 |
| Glomerular line arranged vessels | 0% (0/20) | 0% (0/20) | 100% (20/20) | 13% (2/16) | < 0.001 |
| Background | |||||
| White thick interfollicular bands | 0% (0/20) | 0% (0/20) | 0% (0/20) | 56% (9/16) | < 0.001 |
| Patchy hyperpigmentation | 0% (0/20) | 0% (0/20) | 0% (0/20) | 38% (6/16) | < 0.001 |
| Reddish areas | 15% (3/20) | 5% (1/20) | 10% (2/20) | 75% (12/16) | < 0.001 |
| Scale | |||||
| Yellow interfollicular scales | 95% (19/20) | 0% (0/20) | 10% (2/20) | 25% (4/16) | < 0.001 |
| White interfollicular scales | 15% (3/20) | 20% (4/20) | 90% (18/20) | 88% (14/16) | < 0.01 |
| Follicular spicules-like scales | 0% (0/20) | 0% (0/20) | 0% (0/20) | 13% (2/16) | 0.053 |
Among those features only two do not perform any statistically significant differences for inter-group comparisons: visible anagen bulbs (p = 0.053) and single broken hairs (p > 0.1). For the other features further multiple comparison test was applied.