Table 2. The frequencies of non-gastrointestinal problems at the time of diagnosis .
| Clinical presentations | No. (%) | |
| Rheumatologic | Arthritis | 5 (3.6) |
| Arthralgia | 9 (6.4) | |
| Muscle cramps | 12 (8.6) | |
| Bone pain | 13 (9.2) | |
| Muscle weakness | 32 (22.8) | |
| Mucocutaneous* | Aphthous stomatitis | 18 (12.8) |
| Dermatitis herpetiformis | 15 (10.7) | |
| Itching | 5 (3.6) | |
| Psoriasis | 2 (1.4) | |
| Non-specific dermatitis | 2 (1.4) | |
| Hair loss | 3 (1.2) | |
| Lichen planus | 1 (0.7) | |
| Neurologic | Headache | 23 (16.4) |
| Ataxia | 1 (0.7) | |
| Seizures | 5 (3.5) | |
| Peripheral neuropathy | 34 (24.2) | |
| Depression | 9 (6.4) | |
| Gynecological (only among females) |
Abnormal uterine bleeding | 19 (19.7) |
| Infertility | 4 (4) | |
| Primary amenorrhea | 2 (2) | |
| Renal | Stone | 5 (3.6) |
| Proteinuria | 1 (0.7) | |
*Dermatologic diseases were diagnosed and confirmed by dermatologists.