Table 5 Univariable analysis of predictors of ICU readmission

Age (years)

1.03 (0.99–1.08)

0.130

Sex

1.16 (0.32–3.88)

0.810

BMI (kg m⁻²)

1.01 (0.87–1.15)

0.927

 < 18.5

–

Smoking history

1.09 (0.32–4.30)

0.896

Alcohol

2.00 (0.59–7.87)

0.281

Total reversible CV risk factors

1.73 (0.97–3.17)

0.065

CV disease

0.96 (0.20–3.50)

0.957

COPD

0.47 (0.02–2.67)

0.484

Chronic renal failure

1.10 (0.06–6.88)

0.930

Liver disease

–

Stroke

3.09 (0.15–26.63)

0.346

Charlson Comorbidity Index

1.05 (0.79–1.41)

0.740

ASA classification

 II

–

 III

–

Surgical indication

 Delayed reconstruction

–

 Osteoradionecrosis

–

 Trauma

–

 Other

–

Cancer context

0.87 (0.20–6.04)

0.868

Past head and neck radiotherapy

0.67 (0.10–2.75)

0.616

Past head and neck FF failure

–

Preoperative hemoglobin level (g/dL)

0.56 (0.32–0.92)

0.029

Fibula flap

11.21 (2.07–208.60)

0.023

Ischemia time (min)

1.02 (1.00–1.04)

0.048

Operative time (h)

1.46 (1.03–2.15)

0.041

Intraoperative IV fluids (mL.kg⁻¹.h⁻¹)

1.05 (0.86–1.25)

0.632

Total pneumopathies

2.40 (1.04–5.59)

0.033