Two-by-two tables for anti-CytAb, ANA, and the combination of anti-Jo1 or anti-CytAb in antisynthetase syndrome–positive and –negative patients. Values are no. patients.
| Variables | Anti-CytAb+ | Anti-CytAb− | Total |
|---|---|---|---|
| Anti-SynAb+ | 142 | 54 | 196 |
| Anti-SynAb−, controls | 122 | 943 | 1065 |
| Total | 264 | 997 | 1261 |
| ANA+ | ANA− | ||
| Anti-SynAb+ | 100 | 99 | 199 |
| Anti-SynAb−, controls | 996 | 69 | 1065 |
| Total | 1096 | 168 | 1264 |
| Jo1 or Anti-CytAb+ | Jo1 or Anti-CytAb− | ||
| Anti-SynAb+ | 181 | 15 | 196 |
| Anti-SynAb−, controls | 122 | 943 | 1065 |
| Total | 303 | 958 | 1261 |
Anti-CytAb: anticytoplasmic autoantibody; ANA: antinuclear antibody; anti-SynAb: antisynthetase autoantibody.