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Table 4 Univariate analysis of overall survival in all 171 patients (log-rank test)

From: Video-assisted thoracic surgery (VATS) as a safe alternative for the resection of pulmonary metastases: a retrospective cohort study

  n 1-year* 3-year 5-year 10-year p-value†
Age (in years)       0.03†
   ≤53 88 88.6 (76) 74.2 (57) 68.8 (42) 54.1 (10)  
   > 53 83 88 (73) 62.8 (45) 51.7 (26) 42.8 (4)  
Sex       0.31
   Female 71 85.9 (60) 73.8 (45) 64.6 (31) 51.8 (9)  
   Male 100 90 (89) 65 (57) 57.7 (37) 44.4 (5)  
Race       0.20
   Caucasian 140 88.6 (124) 66.4 (81) 59.1 (55) 44.4 (11)  
   non-Caucasian 31 87.1 (25) 79.8 (21) 68.4 (13) 68.4 (3)  
PTT       0.02†
   Carcinoma 87 93.1 (79) 74.8 (58) 69.2 (41) 57.3 (7)  
   Sarcoma 84 83.3 (70) 62.5 (44) 51.4 (27) 39.2 (7)  
DFI-1       0.79
   < 1 years 34 76.5 (26) 61.1 (16) 57.3 (14) 52.9 (2)  
   1 to 5 years 92 90.2 (81) 70.3 (5)4 60.3 (34) 50 (7)  
   > 5 years 45 93.3 (42) 71.1 (32) 63.5 (20) 44.5 (5)  
Laterality       0.40
   Unilateral 124 91.1 (112) 72.4 (76) 63.3 (49) 46.4 (7)  
   Bilateral 47 80.9 (37) 58.8 (26) 53.5 (19) 49 (7)  
Magnitude       0.17
   Wedge 118 88.1 (102) 70 (71) 63.8 (56) 51.9 (12)  
   All other 53 88.7 (47) 65.8 (31) 53.7 (12) 36.9 (2)  
Number of lesions       0.64
   Single 48 91.7 (44) 71.8 (31) 66.9 (24) 47.8 (2)  
   2–5 94 89.4 (82) 68 (53) 58.5 (32) 44 (6)  
   > 5 29 79.3 (23) 65.5 (18) 56.4 (12) 56.4 (6)  
Neoadjuvant       0.10
   No 99 85.9 (84) 62.9 (55) 54.4 (36) 46.4 (7)  
   Yes 72 91.7 (65) 76.6 (47) 69.3 (32) 51.3 (7)  
Procedure       0.24
   OPEN 135 87.4 (117) 67.9 (88) 58.8 (61) 45.8 (14)  
   VATS 36 91.7 (32) 69.6 (14) 69.6 (7) 69.6 (0)  
  1. *All survival rates are expressed as % (number at risk), unless specified otherwise.
  2. † Two-tailed p-value < 0.05 considered statistically significant.