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Table 2 Prognostic factors for T1 PAAD patients. HR: hazard ratio. CI: confidence interval

From: Tumor location as an indicator of survival in T1 resectable pancreatic ductal adenocarcinoma: a propensity score-matched analysis

  Univariate analysis   Multivariate analysis
     95%CI       95%CI
Standard error Wald chi-square P HR Down Up   Standard error Wald chi-square P HR Down Up
Year of diagnosis Year of diagnosis       
 2004–2008 Reference 2004–2008 Reference
 2009–2014 0.12 18.96 < 0.001 0.60 0.47 0.75 2009–2014 0.12 18.62 < 0.001 0.60 0.47 0.76
Race Race
 White Reference  White       
 Yellow 0.22 0.99 0.32 0.81 0.53 1.23  Yellow       
 Black 0.18 0.07 0.79 1.05 0.73 1.51  Black       
 Others 0.71 0.43 0.51 0.63 0.16 2.53  Others       
Age 0.01 0.11 0.74 1.00 0.99 1.01 Age       
Gender Gender
 Male Reference  Male       
 Female 0.12 1.66 0.20 0.86 0.68 1.08  Female       
Marital status Marital status
 Married Reference   Married       
 Single 0.23 2.50 0.11 0.70 0.45 1.09  Single       
 Divorced 0.21 0.11 0.74 0.93 0.62 1.41  Divorced       
 Widowed 0.16 1.22 0.27 1.19 0.87 1.62  Widowed       
 Unknown 0.34 0.14 0.71 0.88 0.45 1.72  Unknown       
Size 0.02 8.89 0.003 1.05 1.02 1.08 Size       
N stage N stage
 N0 Reference  N0 Reference
 N1 0.13 26.95 < 0.001 1.92 1.50 2.45  N1 0.13 17.52 < 0.001 1.71 1.33 2.19
 N2 0.23 12.17 < 0.001 2.22 1.42 3.47  N2 0.23 11.28 0.001 2.17 1.38 3.40
Site Site       
 Head Reference  Head Reference
 Body/Tail 0.15 8.55 0.003 0.65 0.49 0.87  Body/Tail 0.15 6.18 0.01 0.69 0.52 0.93
Pathology grade Pathology grade
 Grade 1 Reference  Grade 1 Reference
 Grade 2 0.17 1.96 0.16 1.28 0.91 1.79  Grade 2 0.18 1.17 0.28 1.21 0.86 1.70
 Grade 3 0.19 9.06 0.003 1.79 1.23 2.62  Grade 3 0.20 7.19 0.01 1.70 1.15 2.50
 Grade 4 0.60 0.85 0.36 1.73 0.54 5.60  Grade 4 0.60 0.72 0.40 1.66 0.51 5.37
 Unknown 0.28 0.42 0.52 1.20 0.69 2.09  Unknown 0.28 0.55 0.46 1.23 0.71 2.15