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Table 4 Risk factors associated with OS

From: Anatomic distribution, clinical features, and survival data of 87 cases primary gastrointestinal lymphoma

Item Case number Expected average survival time Univariate analysis Multivariate analysis
OS P value HR P value
1 year 3 year    
Gender
 Male 31 79.4 79 75 0.564   
 Female 33 89.4 85 79    
Age
 <60 years 37 87.5 83 80 0.216   
 ≥60 years 27 77.9 80 71    
Location
 Stomach 45 96.5 89 84 0.03 Not significant  
 Intestines 19 34.9 62 50    
Size
 <5 cm 34 97.3 82 79 0.142   
 ≥5 cm 30 70.8 82 74    
Clinical stages
 I + II 55 95.5 89 87 0.003 2.576 (1.024 3.809) 0.001
 III + IV 9 20.0 38 0    
Source of cells
 Source of B cells 57 94.7 89 85 0.006 3.119 (1.524 6.384) 0.002
  MALT 35 100.9 94 91    
  DLBCL 22 85.0 81 74    
 Source of T cells 5 14.6 36 0    
  EATL 5 14.6 36 0    
Treatment methods
 Surgery alone 22 80.9 81 72 0.604   
 Surgery combined other treatment 27 90.5 88 83    
 Non-operation 15 49.1 73 73