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Table 2 The relationship between SPP1 expression level and different clinical and pathological features

From: Prognostic value of secreted phosphoprotein-1 in pleural effusion associated with non-small cell lung cancer

Characteristics Total Low-SPP1* High-SPP1 P
NO. % NO. % NO. %  
Gender        0.156
 Men 43 51 29 56 14 41.2  
 Women 42 49 22 44 20 58.8  
Age        0.854
 ≤60 31 36.5 19 37.3 12 35.3  
 >60 54 63.5 32 62.7 22 64.7  
Smoking History        0.318
 <20 52 61.2 29 56.9 23 67.6  
 ≥20 33 38.8 22 43.1 11 32.4  
Histology        0.072
 Adenocarcinoma 67 78.8 39 76.5 28 82.4  
 Squamous 13 15.3 11 21.6 2 5.9  
 Adenosquamous 1 1.2 0 0 1 2.9  
 Unknown 4 4.7 1 1.9 3 8.8  
Lymphatic Metastasis        0.164
 ≤N1 14 16.5 6 11.8 8 23.5  
 >N1 70 82.4 44 86.3 26 76.5  
 Unknown 1 1.1 1 1.9 0 0  
Metastasis organ        0.03
 0 27 34.4 21 42.4 6 21.6  
 ≥1 53 57.3 28 50.8 25 67.6  
 Unknown 5 8.3 2 6.8 3 10.8  
  1. *SPP1: secreted phosphoprotein-1.