Table 3. Comorbidities involving organs of mucosal immunity in patients with isolated IgA anti-β2GPI titer versus controls.
| Comorbidities by Organ System | Patients with isolated IgA anti-β2GPI | Controls |
| Gastrointestinal system | Total 25 | Total 16 |
| GERD | 14 | 11 |
| Gastric/duodenal ulcers | 4 | 0 |
| Cholecystitis | 2 | 0 |
| Diarrhea | 2 | 0 |
| Hepatitis | 1 | 0 |
| Pancreatitis | 1 | 2 |
| Gastrointestinal bleed | 1 | 1 |
| IBD/ulcerative colitis | 0 | 2 |
| Pulmonary system | Total of 26 | Total 16 |
| Asthma | 11 | 6 |
| Interstitial lung disease | 4 | 3 |
| Pleuritis | 3 | 0 |
| Restrictive lung disease | 2 | 0 |
| Sleep apnea | 2 | 0 |
| Emphysema | 1 | 0 |
| Lung mass | 1 | 0 |
| Aspiration | 1 | 0 |
| Sarcoidosis | 1 | 0 |
| Bronchitis | 0 | 1 |
| COPD | 0 | 3 |
| Pulmonary hemorrhage | 0 | 1 |
| ARDS | 0 | 1 |
| Pleural effusion | 0 | 1 |
| Skin | Total 35 | Total 27 |
| Rash | 15 | 11 |
| Cutaneous lupus | 7 | 9 |
| Herpes zoster | 5 | 2 |
| Varicose veins | 1 | 0 |
| Livedo reticularis | 1 | 0 |
| Alopecia | 1 | 0 |
| Cutaneous ulcers | 1 | 0 |
| Skin cancer | 1 | 1 |
| Cutaneous sarcoid | 1 | 0 |
| Keloid | 1 | 1 |
| Vitiligo | 1 | 0 |
| Raynaud's | 0 | 2 |
| Psoriasis | 0 | 1 |
*Abbreviations used in this table: ARDS, adult respiratory distress syndrome; COPD, chronic obstructive pulmonary disease; GERD, gastro-esophageal reflux disease; IBD, inflammatory bowel disease.