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Table 3 The results of comparison of mean age in different groups with t-test

From: Epidemiology and cost analysis for patients with oral cancer in a university hospital in China

  ± S p n
Gender    
male 55.06 ± 17.15 0.598 280
female 54.08 ± 16.26   176
Rural/Urban    
Rural 48.56 ± 16.79 0.000 82
Urban 55.94 ± 16.54   374
Stage    
I,II 54.51 ± 16.31 0.823 238
III,IV 54.87 ± 17.35   218