TABLE 2.
Demographics and clinical data of Koebner phenotypes mask related in our cohort
| Boyd and Nelder' category | Facial dermatoses (N) | Koebner response intensity (N [%]) | Age (median [IQR], years) | Male (N [%]) | Type of mask (N [%]) a | Daily mask wearing (median [IQR], hours) |
|---|---|---|---|---|---|---|
| I | Psoriasis: 37 |
Maximal: 2 (5.4) Minimal: 35 (94.6) Abortive: 0 (0) |
43 [22‐56] | 13 (35.1) |
SM: 16 (43.2) N95: 7 (18.9) Community mask: 14 (37.8) |
8 [6–12] |
| Vitiligo: 14 |
Maximal: 1 (7.1) Minimal: 13 (92.9) Abortive: 0 (0) |
35 [20‐47] | 3 (21.4) |
SM: 5 (35.7) N95: 0 (0) Community mask: 9 (64.3) |
7 [6‐9] | |
| Maskne: 65 |
Maximal: 13 (20.0) Minimal:52 (80.0) Abortive: 0 (0) |
31 [20‐37] | 17 (26.2) |
SM: 46 (70.8) N95: 11 (16.9) Community mask: 8 (12.3) |
7 [5‐8] | |
| Mask Rosacea: 26 |
Maximal: 2 (7.7) Minimal: 24 (92.3) Abortive: 0 (0) |
56 [41‐66] | 4 (15.4) |
SM: 15 (57.7) N95: 3 (11.5) Community mask: 8 (30.8) |
6 [5–8] | |
| II | Warts: 11 |
Maximal: 0 (0) Minimal: 11 (100.0) Abortive: 0 (0) |
14 [8‐21] | 5 (45.5) |
SM: 9 (81.8) N95: 0 (0) Community mask: 2 (18.2) |
7 [5–8] |
| Molluscum contagiosum: 4 |
Maximal: 0 (0) Minimal: 4 (100.0) Abortive: 0 (0) |
7 [3‐12] | 2 (50.0) |
SM: 0 (0) N95: 0 (0) Community mask: 4 (100.0) |
4 [3–6] | |
| Impetigo: 9 |
Maximal: 0 (0) Minimal: 9 (100.0) Abortive: 0 (0) |
8 [2–14] | 3 (33.3) |
SM: 2 (22.2) N95: 4 (44.4) Community mask: 3 (33.3) |
5 [3–7] | |
| III | Atopic Dermatitis: 46 |
Maximal: 5 (10.9) Minimal: 41 (89.1) Abortive: 0 (0) |
29 [16‐43] | 13 (28.3) |
SM:15 (32.6) N95: 13 (28.3) Community mask:18 (39.1) |
7 [5–8] |
| IV | Eczema: 17 |
Maximal: 1 (5.9) Minimal: 14 (82.4) Abortive: 2 (11.8) |
62 [48‐73] | 9 (52.9) |
SM: 9 (52.9) N95: 3 (17.6) Community mask: 5 (29.4) |
6 [5–8] |
Abbreviations: IQR, interquartile interval; SM, surgical mask.
This parameter refers to the main type of mask wore by the examined patient.