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Combined autoantibody detection results
| Detection items | Positive (case) | Sensitivity | Specificity |
|---|---|---|---|
| AnuA + Anti-SM | 56 | 53.33% | 97.43% |
| Anti-dsDNA + Anti-SM | 68 | 64.76% | 97.58% |
| AnuA + Anti-dsDNA | 81 | 77.14% | 97.64% |
| AnuA + Anti-dsDNA + Anti-SM | 102 | 97.14% | 98.46% |
