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Table 2 The correlation between PDV and factors with P < 0.1 from continuous variables

From: Predictive factors for pleural drainage volume after uniportal video-assisted thoracic surgery lobectomy for non-small cell lung cancer: a single-institution retrospective study

Factors

Mean ± SD or median (IQR)

Correlation coefficient

P value

Age (years)

60 (53–65)

0.245

< 0.001

BMI (kg/m2)

24.01 ± 3.34

0.096

0.045

Operation time (min)

132 (108–164)

0.127

0.008

FEV1% (%)

96.2 ± 16.7

− 0.229

< 0.001

DLCO% (%)

89.1 ± 16.8

− 0.089

0.063

LVFS (%)

32.5 ± 2.3

− 0.090

0.059

LVEF (%)

61.5 ± 2.8

− 0.139

0.003

TP (g/l)

68.85 ± 4.92

− 0.105

0.028

ALB (g/l)

40.63 ± 3.44

− 0.085

0.076

CRE (μmol/l)

64.20 ± 13.67

0.083

0.081

APTT (s)

27.32 ± 3.36

0.089

0.063

PT (s)

10.75 ± 0.83

0.081

0.089

INR

0.96 ± 0.06

0.081

0.091

WBC (109/l)

5.87 ± 1.49

0.091

0.056

  1. PDV pleural drainage volume, IQR interquartile range, BMI body mass index, FEV1% forced expiratory volume in 1 s % predicted, DLCO% carbon monoxide lung diffusion capacity % predicted, LVFS left ventricular fractional shortening, LVEF left ventricular ejection fraction, TP serum total protein, ALB serum albumin, CRE serum creatinine, PT prothrombin time, APTT activated partial thromboplastin time, INR international normalized ratio, WBC white blood cell count