| Ethnicity | Algerian | Algerian | Algerian | Algerian | Algerian | Syrian | Algerian | Algerian |
| CD55 variant |
| Variant | c.1112 T>G | c.515 G>A | c.98 G>A | c.98 G>A | c.479-2 A>G | c.348_349del | c.515 G>A | c.1112 T>G |
| Amino acid change | p.Leu371Arg | p.Gly172Asp | p.Trp33Ter | p.Trp33Ter | – | p.Asn117LeufsTer11 | p.Gly172Asp | p.Leu371Arg |
| Zygosity | Homozygous | Homozygous | Homozygous | Homozygous | Homozygous | Homozygous | Homozygous | Homozygous |
| Demographic characteristics |
| Sex | Female | Male | Male | Male | Female | Male | Male | Female |
| Consanguinity in parents | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Similar cases in sibling | No | No | Yes | Yes | No | Yes | No | No |
| Age at last follow-up (years) | 7 | 8 | 7 | 4 | 16 | 5 | 9 | 12 |
| Age at diagnosis (years) | 5 | 7 | 6 | 2 | 14 | 2.5 | 8 | 11 |
| Age at onset of symptoms (months) | 13 | 4 | 24 | 20 | 60 | 24 | 48 | 96 |
| Manifestations of gastrointestinal disease |
| Chronic or recurrent diarrhea | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Abdominal pain | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Vomiting | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes |
| Features of PLE |
| Hypoalbuminemia | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Facial or extremity edema | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Ascites | No | No | Yes | Yes | Yes | No | Yes | Yes |
| Malabsorption features |
| Growth retardation | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes |
| Anemia | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes |
| Micronutrient deficiency | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Features of thrombotic disease |
| Thrombosis | Femoral vein thrombosis, pulmonary embolism | Cerebral venous thrombosis, pulmonary embolism | Budd–Chiari syndrome | Budd–Chiari syndrome | Lower limb thrombosis | No | Budd–Chiari syndrome | No |
| Imaging findings |
| Bowel wall thickening | Yes | No | Yes | Yes | Yes | Yes | No | Yes |
| Inflammatory changes | Yes | No | Yes | Yes | Yes | Yes | No | Yes |
| Endoscopic findings |
| Mucosal ulcers | No | No | Yes | No | Yes | No | No | No |
| Mucosal nodules | No | No | No | No | Yes | No | No | Yes |
| Lymphoid infiltrates in mucosa | Yes | No | Yes | No | Yes | No | No | Yes |
| Infectious disease |
| Hypogammaglobulinemia | Yes | Yes | No | No | Yes | Yes | No | Yes |
| Recurrent respiratory infections | Yes | No | No | No | Yes | No | No | Yes |
| Additional features | Hepatomegaly | Hypothyroidism, asthma | Hepatomegaly, cirrhosis, asthma | Hepatomegaly, cirrhosis | | | Hepatomegaly, cirrhosis | Hepatomegaly, splenomegaly, mesenteric lymphadenopathy, asthma |
| Treatment | Supportive and symptomatic management | Supportive and symptomatic management | Supportive and symptomatic management | Supportive and symptomatic management | Eculizumab | Eculizumab | Supportive and symptomatic management, liver transplantation | Eculizumab |
| Alive/Deceased | Deceased at 7 years old (y/o) | Deceased at 8 y/o | Deceased at 7 y/o | Deceased at 4 y/o | Alive | Alive | Alive | Alive |