Frequencies of antibodies to U3 small nuclear ribonucleoprotein (snRNP), detected by immunoprecipitation, in patients with localised scleroderma (LScl), systemic sclerosis (SSc), and control subjects
| Anti-U3 snRNP antibodies (%) | |
| Patients with LScl | 2/70 (3) |
| GM | 0/22 (0) |
| LS | 1/28 (4) |
| M | 1/20 (5) |
| Patients with SSc | 3/30 (10) |
| Control subjects | 0/40 (0) |
LScl = localised scleroderma; GM = generalised morphoea; LS = linear scleroderma; M = morphoea; SSc = systemic sclerosis.