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Table 1 Baseline demographic and clinical characteristics

From: Supraclavicular lymph node incisional biopsies have no influence on the prognosis of advanced non-small cell lung cancer patients: a retrospective study

Characteristics Excisional biopsy Incisional biopsy Total P value
(n = 163) (n = 39) (n = 202)
Sex     0.003
 Male 92 (56.4%) 32 (82.1%) 124 (61.4%)  
 Female 71 (43.6%) 7 (17.9%) 78 (38.6%)  
Age     0.922
 Median 58 (26–85) 58 (29–75) 58 (26–85)  
 <65 110 (67.5%) 26 (66.7%) 136 (67.3%)  
 ≥65 53 (32.5%) 13 (33.3%) 66 (32.7%)  
Smoking status     0.008
 Never-smoker 93 (57.1%) 13 (33.3%) 106(52.5%)  
 Current/ever-smoker 70(42.9%) 26(66.7%) 96 (47.5%)  
ECOG PS     1.000a
 PS 0–1 143 (87.7%) 35 (89.7%) 178 (88.1%)  
 PS ≥2 20 (12.3%) 4 (10.3%) 24 (11.9%)  
Histology     0.747
 Adenocarcinoma 138 (84.7%) 31 (79.5%) 169 (83.7%)  
 Squamous 13 (8.0%) 4 (10.3%) 17 (8.4%)  
 Large cell 7 (4.3%) 2 (5.1%) 9 (4.5%)  
 Other NSCLC 5 (3.1%) 2 (5.1%) 7 (3.5%)  
Stage     0.448
 IIIB 29 (17.8%) 9 (23.1%) 38 (18.8%)  
 IV 134 (82.2%) 30 (76.9%) 164 (81.2%)  
LN size     <0.001
 Mean size 18.6 mm 25.9 mm 20.0 mm  
 >2 cm 34 (20.9%) 23 (59.0%) 57 (28.2%)  
 ≤2 cm 129 (79.1%) 16 (41.0%) 145 (71.8%)  
LN site     0.107
 Unilateral 132 (81.0%) 27 (69.2%) 159 (78.7%)  
 Bilateral 31 (19.0%) 12 (30.8%) 43 (21.3%)  
LN number     0.109
 Single 77 (47.2%) 24 (61.5%) 101 (50.0%)  
 Multiple 86 (52.8%) 15 (38.5%) 101 (50.0%)  
Fixed LN     <0.001
 Fixed 119 (73.0%) 6 (15.4%) 125 (61.9%)  
 Unfixed 44 (27.0%) 33 (84.6%) 77 (38.1%)  
Systemic treatment     0.141
 Yes 127 (77.9%) 26 (66.7%) 153 (75.7%)  
 No 36 (22.1%) 13 (33.3%) 49 (24.3%)  
  1. ECOG PS Eastern Cooperative Oncology Group performance status, LN lymph node
  2. aFisher’s exact test