Table 1: Clinical and histochemical data of patients with idiopathic rhinitis, allergic rhinitis and control subjects.
| Allergic rhinitis (n = 16) | Idiopathic rhinitis (n = 17) | Control (n = 25) | |
| Gender (M/F); n | 6/10 | 9/8 | 15/10 |
| Age; years, min-max (mean) | 15 - 32 (21) | 18 - 41 (25) | 20 - 48 (29) |
| Duration of symptoms; years | > 2 | > 2 | - |