| Variables | Category | Linear IgA dermatosis | Epidermolysis bullosa acquisita | Paraneoplastic pemphigus | Pemphigus vulgaris | Bullous pemphigoid | Mucous membrane pemphigoid | Total | ||||||||||||||
| n | % | p | n | % | p | n | % | p | n | % | p | n | % | p | n | % | p | n | % | p valuea | ||
| Sex | Male | 2 | 50 | 0.59 | 4 | 40 | 0.71 | 1 | 50 | 1.0 | 10 | 24.4 | 0.12 | 5 | 50 | 0.27 | 0 | 0 | 0.56 | 22 | 31.9 | 0.45 |
| Female | 2 | 50 |
| 6 | 60 |
| 1 | 50 |
| 31 | 75.6 |
| 5 | 50 |
| 2 | 100 |
| 47 | 68.1 | ||
| Average age (years) | 4 | 40 |
| 10 | 46.2 |
| 2 | 39 |
| 41 | 43.1 |
| 10 | 62 |
| 2 | 51.5 |
| 69 | 50.8 | ||
| Race | Non-white | 0 | 0 | 1.0 | 1 | 10 | 1.0 | 1 | 50 | 0.27 | 6 | 14.6 | 1.0 | 2 | 22 | 0.62 | 0 | 0 | 1.0 | 10 | 14.5 | 0.60 |
| White | 4 | 100 |
| 9 | 90 |
| 1 | 50 |
| 35 | 85.4 |
| 7 | 77.8 |
| 2 | 100 |
| 59 | 85.5 | ||
| Cigarette smoker | Yes | 1 | 25 | 0.39 | 1 | 10 | 1.0 | 0 | 0 | 1.0 | 6 | 14.6 | 1.0 | 0 | 0 | 0.35 | 1 | 50 | 0.22 | 8 | 11.6 | 0.43 |
| No | 3 | 75 |
| 9 | 90 |
| 2 | 100 |
| 35 | 85.4 |
| 10 | 100 |
| 1 | 50 |
| 61 | 88.4 | ||
| Alcoholic beverage consumption | Yes | 0 | 0 | 1.0 | 2 | 20 | 0.15 | 0 | 0 | 1.0 | 3 | 7.3 | 1.0 | 0 | 0 | 0.59 | 0 | 0 | 1.0 | 5 | 7.2 | 0.57 |
| No | 4 | 100 |
| 8 | 80 |
| 2 | 100 |
| 38 | 92.7 |
| 10 | 100 |
| 2 | 100 |
| 64 | 92.8 | ||
| Illicit-drug user | Yes | 0 | 0 | 1.0 | 1 | 10 | 0.27 | 0 | 0 | 1.0 | 0 | 0 | 0.16 | 0 | 0 | 1.0 | 1 | 50 | 0.06* | 2 | 2.9 | 0.02* |
| No | 4 | 100 |
| 9 | 90 | 0.71 | 2 | 100 |
| 41 | 100 |
| 10 | 100 |
| 1 | 50 |
| 67 | 97.1 | ||