Table 1 Pre-matching and after matching clinical characteristics of MPLC and single lung cancer main lesions in the lobectomy group
From: Sublobar resection versus lobectomy in the treatment of synchronous multiple primary lung cancer
Factors | Pre-matching | After matching | ||||||
|---|---|---|---|---|---|---|---|---|
sMPLC (n = 65) | SLC (n = 729) | x2/t | P | sMPLC (n = 65) | SLC (n = 65) | x2/t | P | |
Age, years ± SD | 62.0±7.4 | 61.3±9.8 | 0.54 | 0.494 | 57.0±10.7 | 57.3±12.0 | -0.22 | 0.892 |
Sex, n (%) | ||||||||
 Male | 28 (43.1%) | 371 (50.9%) | 1.46 | 0.227 | 22 (28.9%) | 137 (33.0%) | 0.49 | 0.486 |
 Female | 37 (56.9%) | 358 (49.1%) | 0.99 | 0.912 | 54 (71.1%) | 278 (67.0%) | 2.263 | 0.150 |
Main tumor staging | ||||||||
 IA | 51 (78.5%) | 551 (75.6%) | 0.67 | 0.516 | 72 (96.6%) | 401 (97.3%) | 0.262 | 0.793 |
 IB | 3 (4.6%) | 46 (6.3%) | 0 (0%) | 2 (0%) |  | |||
 IIA | 3 (4.6%) | 25 (3.4%) | 1 (1.3%) | 4 (0%) |  | |||
 IIB | 2 (3.1%) | 35 (4.8%) | 0 (0%) | 1 (0%) |  | |||
 IIIA | 6 (9.2%) | 72 (9.9%) | 3 (4.0%) | 7 (2.7%) |  | |||
 Tumor size (mm) | 22.0±12.5 | 23.3±14.8 | 12.1±7.6 | 11.8±9.3 |  | |||