Table 1 Clinical characteristics of patients with stage I NSCLC before PSM
Variable | PNB (n = 40) | BB (n = 48) | Non-biopsy (n = 345) | P-value* | P-value# |
|---|---|---|---|---|---|
Gender | |||||
Female | 20(50.0) | 10(20.8) | 170(49.3) | 0.931 | < 0.001 |
Male | 20(50.0) | 38(79.2) | 175(50.7) | ||
Age | 62.88 ± 8.890 | 63.52 ± 8.119 | 62.14 ± 8.052 | 0.589 | 0.267 |
Smoking history | |||||
No | 27(67.5) | 14(29.2) | 204(59.1) | 0.306 | < 0.001 |
Yes | 13(32.5) | 34(70.8) | 141(40.9) | ||
Tumor location | |||||
Peripheral | 37(92.5) | 9(18.8) | 319(92.5) | 1.000$ | < 0.001 |
Central | 3(7.5) | 39(81.3) | 26(7.5) | ||
Scope of surgery | |||||
Lobectomy | 39(97.5) | 47(97.9) | 333(96.5) | 1.000$ | 1.000$ |
Sublobar resection | 1(2.5) | 1(2.1) | 12(3.5) | ||
Pathological type | |||||
Adenocarcinoma | 33(82.5) | 8(16.7) | 295(85.5) | 0.173$ | < 0.001$ |
Squamous carcinoma | 5(12.5) | 37(77.1) | 46(13.3) | ||
Other | 2(5.0) | 3(6.3) | 4(1.2) | ||
Staging | |||||
Stage Ia | 18(57.1) | 30(62.5) | 197(57.1) | 0.145 | 0.478 |
Stage Ib | 22(42.9) | 18(37.5) | 148(42.9) | ||
Maximum tumor diameter | 2.26 ± 0.90 | 2.34 ± 1.18 | 2.16 ± 0.80 | 0.434 | 0.160 |
Postoperative adjuvant therapy | |||||
No | 20(50.0) | 30(62.5) | 254(73.6) | 0.002 | 0.107 |
Yes | 20(50.0) | 18(37.5) | 91(26.4) | ||
STAS | |||||
No | 24(60.0) | 27(56.2) | 206(59.7) | 0.972 | 0.648 |
Yes | 16(40.0) | 21(43.8) | 139(40.3) | ||
STAS degree | |||||
None | 24(60.0) | 27(56.2) | 206(59.7) | 0.191$ | 0.324$ |
Limited | 0(0.0) | 1(2.1) | 24(7.0) | ||
Extensive | 16(40.0) | 20(41.7) | 115(33.3) | ||