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Table 2 Characteristics of the colorectal patients in the Shanghai Pudong New Area during 2002–2016, by subgroups categorized according to time and age at diagnosis

From: The impact of screening on the survival of colorectal cancer in Shanghai, China: a population based study

 Diagnosed before program introductionDiagnosed after program introductionP valueDiagnosed before program introduction, 50–74 yrsDiagnosed after program introduction, 50–74 yrsP value
(n)(n) (n)(n) 
Gender
 Male6,7063,492< 0.0014,0342,229< 0.001
 Female5,8312,563 3,1861,455
Age
  ≤ 655,0102,430> 0.0503,8452,061< 0.050
  > 657,5273,625 3,3751,623
Sub region
 Rural7,0643,638< 0.0014,0762,195< 0.050
 Urban5,4732,417 3,1441,489
Level of treatment hospital
 Secondary4,6682,561< 0.0012,4621,358< 0.050
 Tertiary7,8693,494 4,7582,326
TNM stage
 I + II3,3171,727< 0.0502,1351,161< 0.050
 III + IV4,1491,927 2,4641,183
 Unknown5,0712,401 2,6211,340