Table 2 Results of univariable/multivariable logistic regression analysis and predictors of atrial fibrillation

MSAS score

 ≤ 1.89

Ref

Ref

 >1.89

1.42 (0.83 ~ 2.42)

0.59 (0.18 ~ 1.92)

NRS2002 score

 No nutritional risk

Ref

Ref

 Nutritional risk

1.72 (0.81 ~ 3.68)

3.85 (0.86 ~ 17.31)

SGA score

 Adequate nutrition

Ref

Ref

 Malnutrition

1.94 (0.95 ~ 3.96)

3.5 (1.16 ~ 10.58)

 Age

1 (0.94 ~ 1.05)

1 (0.94 ~ 1.07)

Gender

 Female

Ref

Ref

 Male

0.89 (0.44 ~ 1.8)

1.04 (0.46 ~ 2.35)

 FEV1/FVC%

1.01 (0.99 ~ 1.03)

1.02 (1 ~ 1.04)

Diabetes mellitus

 No

Ref

Ref

 Yes

0.86 (0.41 ~ 1.8)

1.22 (0.51 ~ 2.89)

Hypertension

 No

Ref

Ref

 Yes

1.04 (0.43 ~ 2.55)

0.76 (0.26 ~ 2.19)

Smoking

 No

Ref

Ref

 Yes

1.25 (0.61 ~ 2.56)

2.8 (0.5 ~ 15.56)

Drinking

 No

Ref

Ref

 Yes

1.14 (0.55 ~ 2.37)

0.53 (0.1 ~ 2.97)

 Pre-albumin

0.99 (0.98 ~ 1.01)

0.99 (0.97 ~ 1.01)

pT stage

 pT1

Ref

Ref

 pT2

2.05 (0.81 ~ 5.19)

2.78 (0.91 ~ 8.47)

 pT3

1.29 (0.54 ~ 3.11)

2.24 (0.76 ~ 6.61)

pN stage

 pN0

Ref

Ref

 pN1

0.64 (0.24 ~ 1.73)

0.53 (0.17 ~ 1.61)

 pN2

1.5 (0.54 ~ 4.14)

1.71 (0.51 ~ 5.71)

 pN3

0.35 (0.04 ~ 2.91)

0.29 (0.03 ~ 2.9)

 Surgical duration

1.01 (0.96 ~ 1.06)

1.05 (0.99 ~ 1.13)

 Intraoperative blood loss

1.03 (0.98 ~ 1.07)

1.02 (0.97 ~ 1.07)

Coronary heart disease

 No

Ref

Ref

 Yes

1.14 (0.54 ~ 2.41)

1.06 (0.44 ~ 2.54)

 Preoperative BNP

0.99 (0.94 ~ 1.04)

0.97 (0.91 ~ 1.04)

Pulmonary infection

 No

Ref

Ref

 Yes

2.81 (0.89 ~ 8.9)

4.9 (1.16 ~ 20.75)

 Length of stay

1.04 (0.99 ~ 1.1)

1.04 (0.98 ~ 1.1)