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Table 1 Preoperative demographics, tumor characteristics, and operative details

From: Parenchymal preserving anatomic resections result in less pulmonary function loss in patients with Stage I non-small cell lung cancer

  1-2 Segments 3-5 Segments Pvalue
(n = 77) (n = 82)
Male sex 33 (42.9%) 42 (51.2%) 0.341
Age 69 ± 9 69 ± 10 0.818
Tumor size 1.9 ± 0.9 2.9 ± 1.9 <0.001
Tumor location    
 Right upper lobe 27 (35.1%) 28 (34.1%) 1
 Right middle lobe 9 (11.7%)   
 Right lower lobe 9 (11.7%) 20 (24.4%) 0.042
 Left upper lobe 27 (35.1%) 12 (14.6%) 0.003
 Left lower lobe 5 (6.5%) 22 (26.8%) <0.001
Approach    0.257
 Thoracotomy 27 (35.1%) 37 (45.1%)  
 VATS 50 (64.9%) 45 (54.9%)  
Mean # of segments resected 1.4 ± 0.5 4.0 ± 0.8 <0.001