Table 1.
Characteristics of Patients With AL Amyloidosis
| Characteristic | Cases (patients with AL) |
Controls |
||
|---|---|---|---|---|
| No. | % | No. | % | |
| Age, years | ||||
| Mean | 51 | 51 | ||
| Range | 42-64 | 42-64 | ||
| Male sex | 20 | 100 | 20 | 100 |
| Race | ||||
| White | 14 | 70 | 14 | 70 |
| Black | 4 | 20 | 4 | 20 |
| Other | 2 | 10 | 2 | 10 |
| Immunoglobulin light chain isotype | ||||
| Kappa | 16 | 80 | NA | |
| Lambda | 4 | 20 | ||
| Immunoglobulin heavy chain | ||||
| Overall | 9 | 45 | NA | |
| IgG | 8 | 40 | ||
| IgA | 1 | 5 | ||
| Organ involvement | ||||
| Heart | 11 | 55 | 0 | 0 |
| Kidney | 8 | 40 | 0 | 0 |
| CNS | 1 | 20 | 0 | 0 |
| Liver | 4 | 20 | 0 | 0 |
| Arthropathy | 2 | 10 | 0 | 0 |
Abbreviations: AL, amyloid light chain; IgG, immunoglobulin G; NA, not applicable.