Table 1.
Subject demographics and clinical data collected.
| Number of Subjects | Healthy Controls | AAc | LPP | FFA | ||||
|---|---|---|---|---|---|---|---|---|
| n = 12 | % | n = 7 | % | n = 6 | % | n = 6 | % | |
| Male | 6 | 50 | 0 | 0 | 0 | 0 | 0 | 0 |
| Female | 6 | 50 | 7 | 100 | 6 | 100 | 6 | 100 |
| Mean age, years (SD) | 28.7 (7.2) | 41.3 (15.9) | 54.8 (18.1) | 56.8 (7.4) | ||||
| Mean Weight, kg (SD) | 67.1 (10.8) | 70 (6.5) | 62.7 (17.8) | 71.8 (7.7) | ||||
| Mean Height, cm (SD) | 170.8 (10.2) | 171.4 (4.2) | 166 (6.4) | 167.4 (7.1) | ||||
| Atopic Dermatitis | 0 | 0 | 0 | 0 | ||||
| Psoriasis | 0 | 0 | 0 | 0 | ||||
| Fitzpatrick Phototype | ||||||||
| Type II | 5 | 42% | 2 | 29% | 1 | 17% | 1 | 17 |
| Type II/III | 0 | 0% | 0 | 0% | 1 | 17% | 1 | 17 |
| Type III | 3 | 25% | 3 | 43% | 4 | 67% | 1 | 33 |
| Type III/IV | 0 | 0% | 2 | 29% | 0 | 0% | 0 | 0 |
| Type IV | 3 | 25% | 0 | 0% | 0 | 0% | 2 | 33 |
| Type V | 1 | 8% | 0 | 0% | 0 | 0% | 0 | 0 |
| Scalp pH (SD) | ||||||||
| Frontal | 6 (1.5) | n/a | n/a | n/a | ||||
| Occipital | 5.7 (1.2) | n/a | n/a | n/a | ||||
| Affected | n/a | 6.9 (1.1) | 6.8 (0.8) | 6.5 (0.8) | ||||
| Not Affected | n/a | 6.9 (2) | 6.9 (1.3) | 6.3 (0.6) | ||||
| Scalp Sebum (SD) | ||||||||
| Frontal | 107.4 (96.5) | n/a | n/a | n/a | ||||
| Occipital | 78.8 (73.6) | n/a | n/a | n/a | ||||
| Affected | n/a | 44.3 (49.5) | 71.3 (65.9) | 29 (39.1) | ||||
| Not Affected | n/a | 16.1 (14.5) | 60.2 (20.1) | 41 (37.9) | ||||
| DLQI (mean, SD) | n/a | 5 (3.8) | 5.8 (2.1) | 4.2 (3.7) | ||||
| Severity Score1 (mean, SD) | n/a | 20.3 (15.2) | 6.6 (2.4) | 33.9 (6.2) | ||||