| Training group (center 1 and center 2) | Validation group (center 3) |  | |||||||
---|---|---|---|---|---|---|---|---|---|---|
variables | Univariable | Â | Multivariable | Â | Â | Â | Multivariable | Â | Â | Â |
OR (95Â %CI) | P | Model 1 | P | Model 2 | P | Model 1 | P | Model 2 | P | |
 |  | OR (95 %CI) |  | OR (95 %CI) |  | OR (95 %CI) |  | OR (95 %CI) |  | |
Mural nodule (yes vs. no ) | 9.56 (2.92–31.30) | < 0.01 | 15.14 (3.10–74.07) | < 0.01 | 14.51 (3.05–69.02) | < 0.01 | 16.11 (2.78–93.5) | < 0.01 | 25.2 (3.43–185.4) | < 0.01 |
Duct (cm) | 18.0 (5.84–55.52) | < 0.01 | 10.45 (1.78–61.17) | 0.02 | 11.61 (1.88–71.65) | 0.02 | 15.4 (2.36–89.6) | < 0.01 | 18.76 (3.32–165.3) | < 0.01 |
Size (cm) | 1.09 (0.91–1.30) | 0.42 | 0.99 (0.79–1.23) | 0.97 | 0.95 (0.76–1.19) | 0.71 | 1.07 (0.86–1.28) | 0.68 | 1.06 (0.86–1.31) | 0.70 |
Type |  | < 0.01 |  | 0.11 |  | 0.10 |  | < 0.01 |  | < 0.01 |
MD + MT | 1 |  | 1 |  | 1 |  | 1 |  | 1 |  |
Branch-duct | 0.15 (0.07–0.34) |  | 0.39 (0.10–1.53) |  | 0.38 (0.09–1.53) |  | 0.21 (0.10–0.37) |  | 0.16 (0.09–0.28) |  |
Location | Â | 0.11 | Â | 0.28 | Â | 0.38 | Â | 0.49 | Â | 0.53 |
Head-neck | 1 | Â | 1 | Â | 1 | Â | 1 | Â | 1 | Â |
Body-Tail | 0.54 (0.26–1.15) |  | 0.57 (0.22–1.50) |  | 0.62 (0.23–1.63) |  | 0.47 (0.18–1.21) |  | 0.50 (0.20–1.27) |  |
HDL-c (< 0.7 vs. ≥ 0.7 mmol/L) | 8.93 (1.78–44.80) | < 0.01 | 17.92 (2.40–134.17) | < 0.01 | 20.56 (2.58–163.64) | < 0.01 | 6.63 (1.14–38.47) | 0.02 | 6.66 (1.08–41.06) | 0.02 |