Table 3 Univariable and multivariable analyses for lymph node metastasis

Age

1.00 (0.98–1.01)

0.764

Female vs. Male

0.60 (0.44–0.83)

0.002

0.85 (0.56–1.28)

0.432

Smoking

1.74 (1.20–2.52)

0.003

1.14 (0.70–1.86)

0.606

ASA score

 P2 vs. P1

0.80 (0.57–1.12)

0.199

 P3 vs. P1

1.04 (0.61–1.77)

0.888

Hypertension

0.90 (0.64–1.26)

0.532

Diabetes

1.79 (1.15–2.78)

0.009

1.30 (0.80–2.13)

0.295

Coronary heart disease

1.11 (0.58–2.13)

0.746

Chronic respiratory diseases

1.21 (0.54–2.70)

0.651

Tumor location

0.788

 RUL

Reference

 RLL

1.23 (0.77–1.96)

 RML

1.19 (0.65–2.18)

 LUL

0.92 (0.60–1.43)

 LLL

1.14 (0.72–1.81)

Solid size

5.24 (4.02–6.84)

< 0.001

3.44 (2.53–4.68)

< 0.001

SN vs. PSN

9.91 (6.44–15.25)

< 0.001

4.25 (2.64–6.83)

< 0.001

Evaluated lymph nodes

1.09 (1.06–1.13)

< 0.001

1.07 (1.04–1.11)

< 0.001

Histological types

0.100

0.463

 ADC

Reference

Reference

 Others

2.59 (1.10–6.10)

0.030

1.63 (0.64–4.18)

0.309

 SCC

1.48 (0.61–3.56)

0.384

1.36 (0.45–2.96)

0.565

EGFR

0.86 (0.52–1.44)

0.575

ALK fusion

1.09 (0.13–9.18)

0.934

ROS1 fusion

0 (0-Inf)

0.999