Table 2. Measurement of the indices in the individual group as referred to endoscopy, P values of CT for the detection of esophageal varices (EV) of each index.
| Variable | Training cohort (n=95) | Validation cohort (n=41) | Estimate risk* | P value** | ||||
|---|---|---|---|---|---|---|---|---|
| Non-conspicuous EV (n=21) | Conspicuous EV (n=74) | Non-conspicuous EV (n=9) | Conspicuous EV (n=32) | |||||
| EVG, n | ||||||||
| I | 5 | 2 | 5 | 3 | 1 | |||
| II | 10 | 5 | 17 | 10 | 1.70 (0.39–7.36) | 0.478 | ||
| III | 6 | 2 | 52 | 19 | 8.67 (1.93–38.85) | 0.005 | ||
| EVD, cm | 6.13 (4.82–7.81) | 5.34 (4.16–7.31) | 4.41 (3.44–5.12) | 4.56 (3.98–4.83) | 1.7 (1.23–2.36) | 0.001 | ||
| CSA, cm2 | 69.07 (28.75–138.44) | 61.21 (29.92–85.92) | 24.77 (11.44–34.25) | 23.27 (20.27–31.71) | 1.03 (1.01–1.05) | 0.003 | ||
| EVV, cm3 | 1.95×103 (1.03×103–5.14×103) | 2.01×103 (8.36×102–3.26×103) | 5.42×102 (4.12×102–1.46×103) | 1.10×103 (6.8×102–1.37×103) | 1.0008 (1.0002–1.0013) | 0.006 | ||
| SV, cm3 | 7.33×105 (5.30×105–1.06×106) | 8.62×105 (5.17×105–1.38×105) | 6.79×105 (3.91×105–8.27×105) | 4.47×105 (3.48×105–7.64×105) | 1 (1,1) | 0.107 | ||
| DLGV, cm | 6.00 (5–7.75) | 6.00 (4.00–7.25) | 4.00 (3.00–5.00) | 4.00 (4.00–5.00) | 1.41 (1.04,1.89) | 0.026 | ||
*, the estimated risk of EV-relevant indices with univariable analysis; **, t-test or chi-square test P values between the non-conspicuous EV group and the conspicuous EV group of both cohorts. EV, esophageal varices; EVG, EV grade; EVD, EV diameter; EVV, EV volume; SV, spleen volume; DLGV, diameter of left gastric vein.