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Table 2 Pre-matching and after matching clinical characteristics of MPLC and single lung cancer main lesions in the sublobar group

From: Sublobar resection versus lobectomy in the treatment of synchronous multiple primary lung cancer

Factors

Pre-matching

After matching

sMPLC

(n=76)

SLC

(n=415)

X2/t

P

sMPLC

(n=75)

SLC

(n=75)

x2/t

P

Age, y ± SD

57.0±10.7

57.3±12.0

-0.22

0.892

62.0±7.4

60.8±9.9

0.79

0.432

Sex, n (%)

 Male

22 (28.9%)

137 (33.0%)

0.49

0.486

28 (43.1%)

23 (35.4%)

0.81

0.369

 Female

54 (71.1%)

278 (67.0%)

2.26

0.150

37 (56.9%)

42 (64.6%)

3.33

0.504

Main tumor staging

 IA

72 (96.6%)

401 (97.3%)

0.262

0.793

51 (78.5%)

57 (87.7%)

0.67

0.507

 IB

0 (0%)

2 (0%)

  

3 (4.6%)

1 (1.5%)

  

 IIA

1 (1.3%)

4 (0%)

  

3 (4.6%)

3 (4.6%)

  

 IIB

0 (0%)

1 (0%)

  

2 (3.1%)

2 (3.1%)

  

 IIIA

3 (4.0%)

7 (2.7%)

  

6 (9.2%)

2 (3.1%)

  

 Tumor size (mm)

12.1±7.6

11.8±9.3

  

22.0±12.5

20.4±15.3

  
  1. SLC single lung cancer