Table 2.
Diagnostic Performance of WLI and EUS
| WLI | EUS | p-value* | ||||
|---|---|---|---|---|---|---|
| M/SM1 | SM2/deeper | M/SM1 | SM2/deeper | |||
| Histology | ||||||
| M/SM1 (n=160) | 109 (68.1) | 51 (31.9) | 119 (74.4) | 41 (25.6) | 0.20 | |
| SM2/deeper (n=118) | 62 (52.5) | 56 (47.5) | 31 (26.3) | 87 (73.7) | <0.01 | |
| Overall accuracy | 59.4 | 74.1 | ||||
| Sensitivity for SM2 or deeper | 47.5 | 73.7 | ||||
| Specificity for SM2 or deeper | 68.1 | 74.4 | ||||
| PPV for SM2 or deeper | 54.8 | 79.3 | ||||
| NPV for SM2 or deeper | 63.7 | 68.0 | ||||
Data are presented as number (%) or percent.
WLI, white light image; EUS, endoscopic ultrasound; M, mucosal cancer; SM1, shallow submucosal; SM2, deep submucosal; PPV, positive predictive value; NPV, negative predictive value.
*McNemar test.