Table 4 Univariate analysis of perioperative factors and mortality within one year after lung resection surgery

Aetiology (neoplastic)

2.96 (0.69–12.70)

Age (years)

1 (0.97–1.03)

Pack-years

1 (0.98–1.02)

 Segmentectomy

(Reference)

 Lobectomy

0.43 (0.13–1.44)

 Bi-lobectomy

3.15 (1.09–9.07)

 Pneumonectomy

1.73 (0.46–6.54)

Video-assisted thoracoscopy technique

0.48 (0.2–1.16)

Hypertension

1.24 (0.52–3)

Coronary artery disease

3.18 (0.43–23.73)

Diabetes mellitus

1.01 (0.3–3.42)

Previous radiotherapy

1.69 (0.57–5.03)

Previous chemotherapy

2.56 (1.03–6.33)

  < 4

2.17 (0.73–6.41)

  ≥ 4

(Reference)

Time of surgery

1.14 (0.86–1.51)

Length of hospital stay

1.02 (1–1.04)

Length of ICU stay

1.17 (1.08–1.26)

 Low (< 5) (reference)

 Moderate (6–10)

1.11 (0.32–3.82)

 High (11 to 15)

19.07 (2.36–153.93)

 Very high (> 15)

12.88 (2.85–58.22)

ACP score

0.61 (0.08–4.56)

Intraoperative arrhythmias

3.97 (1.54–10.25)

Intraoperative haemodynamic changes

3.63 (1.54–8.55)

Intraoperative blood transfusion

3.29 (1.28–8.49)

  < 0.16 ng/ml

(Reference)

 0.16–0.31 ng/ml

2.19 (0.8–6.05)

  ≥ 0.32 ng/ml

5.15 (1.73–15.33)

  < 0.16 ng/ml

(Reference)

 0.16–0.31 ng/ml

2.92 (1.06–8.05)

  ≥ 0.32 ng/ml

8.17 (2.74–24.33)

  < 0.16 ng/ml

(Reference)

 0.16–0.31 ng/ml

2.43 (0.91–6.54)

  ≥ 0.32 ng/ml

6.31 (2.11–18.85)

Elevated troponin (≥0.16 ng/ml) for at least 1 day

4.71 (1.58–13.99)