Table 2 Predictive factors for FDGE (1243 cases)

Male sex

801 (64.4%)

0.804

1.076 (0.602–1.924)

Age, years^a

53.444 ± 9.390

< 0.001

1.094(1.064–1.124)

< 0.001

1.081 (1.047–1.117)

BMI, kg/m^2a

22.162 ± 3.095

< 0.001

1.229 (1.122–1.346)

< 0.001

1.233 (1.116–1.363)

Smoking history

256 (20.6%)

0.286

1.406 (0.751–2.632)

History of abdominal surgery

160 (12.9%)

0.941

1.031 (0.457–2.326)

< 0.001

3.831 (1.829–8.023)

Preoperative pyloric obstruction

114(9.2%)

< 0.001

13.166 (7.363–23.540)

Preoperative albumin, g/L^a

42.022 ± 4.344

0.435

0.975 (0.916–1.038)

Preoperative hemoglobin, g/L^a

137.370 ± 12.745

0.541

1.007 (0.984–1.030)

Postoperative albumin, g/L^a

34.139 ± 3.731

0.862

1.007 (0.935–1.084)

Postoperative hemoglobin, g/L^a

115.930 ± 13.409

0.063

1.022 (0.999–1.045)

 None

751 (60.4%)

0.958

 Counseling

219 (17.6%)

0.845

1.075 (0.520–2.223)

 Drugs

273 (22.0%)

0.870

0.943 (0.469–1.899)

Operation time, min^a

186.138 ± 21.486

0.320

1.006 (0.994–1.019)

Operation blood loss, ml^a

171.440 ± 52.732

0.170

1.003 (0.999–1.008)

 Opening

832(66.9%)

 Laparoscopy

411(33.1%)

0.171

1.478 (0.845–2.587)

 Roux-en-Y

442(35.6%)

0.074

Control

 Uncut Roux-en-Y

801(64.4%)

0.022

0.604 (0.348–1.050)

< 0.027

 LGPA preserved

560 (45.1%)

0.035

Control

0.170

 LGPA ligation

322 (25.9%)

0.008

2.174 (1.057–4.471)

0.007

1.763 (0.785–3.963)

First branch of SGA ligation

361 (29.0%)

< 0.001

2.531(1.278–5.014)

0.004

1.838 (1.325–6.080)

 Greater curvature parallel

142 (11.4%)

0.006

2.951 (1.367–6.371)

0.061

2.375 (0.963–5.861)

 Greater curvature perpendicular

222 (17.9%)

< 0.001

4.070 (2.195–7.546)

0.001

3.385 (1.632–7.019)

 Middle position of gastric posterior wall

879 (70.7%)

 Circle stapler

879 (70.7%)

 Linear stapler

364 (29.3%)

< 0.001

3.07 (2.334–3.806)

 Greater curvature

731 (58.8%)

 Lesser curvature

512 (41.2%)

0.602

0.860 (0.488–1.516)