Table 3 Univariate and Multivariate analysis of risk factors associated with unplanned reoperation in neonates after gastrointestinal procedures

Weight at surgery (kg)

0.94 (0.55, 1.6)

0.83

Birth weight < 1.5 (kg)

1.98 (0.63,6.24)

0.24

Gestational weeks (< 37 vs. ≥ 37)

1.48 (0.69, 3.2)

0.32

Type of surgeries (Elective vs. Emergency)

2.72 (0.92, 8.07)

0.07

0.33 (0.10, 1.09)

0.07

 Anoplasty

0.13 (0.02, 0.94)

0.04*

0.04 (0.00, 1.15)

0.06

 Enterectomy

5.11 (1.51, 17.31)

< 0.01*

0.20 (0.01, 2.92)

0.24

 others

0.22 (0.03, 1.68)

0.15

0.05 (0.00, 1.47)

0.08

  ≥ 36 and < 37.5 (°C)

0.51 (0.22, 1.16)

0.11

0.74 (0.17, 3.22)

0.69

  ≥ 35 and < 36.0 (°C)

1.11 (0.48, 2.55)

0.81

  < 35.0 (°C)

1.9 (0.85, 4.23)

0.12

1.81 (0.52, 6.24)

0.35

Duration of hypothermia (min)

1.01 (1.00, 1.01)

0.01*

1.00 (0.99, 1.01)

0.82

The incidence of hypothermia, n (%)

6.77 (0.90, 50.91)

0.06

4.61 (0.42, 51.13)

0.21

Operative time (min)

1.01 (1.01, 1.02)

< 0.01*

1.02 (1.00, 1.04)

0.03*

Preoperative transfusion, n (%)

2.3 (0.95, 5.56)

0.07

1.44 (0.52, 4.00)

0.97

Duration of anesthesia (min)

1.00 (0.99, 1.01)

0.08

0.99 (0.98, 1.01)

0.48

Preoperative hemoglobin (g/dl)

1.00 (0.99, 1.01)

0.79

Postoperative hemoglobin (g/dl)

1.00 (0.98, 1.01)

0.52

Intraoperative blood loss (mL)

1.04 (0.98, 1.1)

0.17

0.99 (0.91, 1.05)

0.60

Postoperative ventilation (hours)

1.00 (1.00, 1.00)

0.10

1.00 (1.00, 1.00)

0.75