Table 3 Comparison of AchR Ab cut-off levels associate to outcome at last outpatient after diagnosis
Positive | Negative | P | Sen | Spe | PPV | NPV | |
|---|---|---|---|---|---|---|---|
Use 0.2 as cut-off | n (%) | n (%) | % (confident interval) | % (confident interval) | % (confident interval) | % (confident interval) | |
No CSR | 34 (87) | 7 (47) | 0.004* | 82.9 (67.9–92.8) | 57.1 (28.9–82.3) | 85.0 (75.3–91.3) | 53.3 (33.6–72.0) |
CSR | 5 (13) | 8 (53) | |||||
Use 0.5 as cut-off | n (%) | n (%) | |||||
No CSR | 26 (87) | 15 (63) | 0.197 | 63.4 (46.9–77.9) | 57 (28.9–82.3) | 81.2 (69.4–89.2) | 34.8 (22.5–49.5) |
CSR | 5 (13) | 8 (37) |