TABLE 5.
Negative predictive value of anti-ENA for their associated clinical diagnoses in the selected population
| ENA | Disease | No. negative by the indicated test/ no. negative by clinical diagnosis (%)
|
|||
|---|---|---|---|---|---|
| CIEP | CIEP plus SPD | LIA | ELISA | ||
| SS-A | SSa or SLE | 17/26 (65) | 17/28 (61) | 14/22 (64) | 8/15 (53) |
| SS-B | SS or SLE | 19/41 (46) | 19/42 (45) | 17/33 (52) | 14/32 (44) |
| RNP | MCTD | 35/35 (100) | 32/33 (97) | 35/37 (95) | 20/20 (100) |
| MCTD or SLE | 23/35 (66) | 23/33 (70) | 22/37 (59) | 14/20 (70) | |
| Sm | SLE | 29/40 (73) | 29/40 (73) | 25/40 (63) | 25/39 (64) |
| Jo-1 | PM/DM | 43/44 (98) | 43/45 (96) | 43/44 (98) | 42/43 (98) |
| Scl-70 | Scleroderma | 42/43 (98) | 42/44 (95) | 41/41 (100) | 36/37 (97) |
a
SS, Sjögren's syndrome.