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Table 1 Patient Characteristics

From: Racial differences in treatment and survival in older patients with diffuse large B-cell lymphoma (DLBCL)

   Overall
Freq
% Treatment
Freq
% No Treatment
Freq
% P Value
Total   7,048 100 5,887 83.5 1,161 16.5  
Age         
  66-69 985 14.0 889 15.1 96 8.3  
  70-74 1,576 22.4 1,384 23.5 192 16.5 < 0.0001
  75-79 1,742 24.7 1,497 25.4 245 21.1  
  ≥ 80 2,745 38.9 2,117 36.0 628 54.1  
  Median Age 77 72-82 77 72-82 80 75-86  
Gender         
  Male 3,228 45.8 2,685 45.6 543 46.8 < 0.01
  Female 3,820 54.2 3,202 54.4 618 53.2  
Race         
  Black 240 3.4 171 2.9 59 5.1  
  Other 632 9.0 489 8.3 110 9.5 0.01
  White 6,176 87.6 5,184 88.1 992 85.4  
Stage at diagnosis         
  I 2,182 31.0 1,838 31.2 344 29.6  
  II 1,330 18.9 1,158 19.7 172 14.8  
  III 1,009 14.3 866 14.7 143 12.3 < 0.0001
  IV 2,044 28.4 1,661 28.2 383 33.0  
  unknown 483 6.9 364 6.2 119 10.2  
Histology        0.0  
  Centroblastic 6,902 97.9 5,773 98.1 1,129 97.2 0.07
  Immunoblastic 146 2.1 114 1.9 32 2.8  
Lymph node site         
  Extranodal 4,218 59.8 3,486 59.2 732 63.0 < 0.0001
  Nodal 2,347 33.3 2,037 34.6 310 26.7  
  Unkown 483 6.9 364 6.2 119 10.2  
NCI Comorbidity Index         
  0 4,075 57.8 3,458 58.7 617 53.1 < 0.0001
  1 1,729 24.5 1,453 24.7 276 23.8  
  2 707 10.0 579 9.8 128 11.0  
  ≥ 3 537 7.6 397 6.7 140 12.1  
Year of diagnosis         
  2001 1,300 18.4 1,065 18.1 235 20.2  
  2002 1,395 19.8 1,160 19.7 235 20.2 < 0.01
  2003 1,445 20.5 1,237 21.0 208 17.9  
  2004 1,465 20.8 1,230 20.9 235 20.2  
  2005 1,443 20.5 1,195 20.3 248 21.4  
SEER region         
  CT 435 6.2 365 6.2 70 6.0  
  Detroit 482 6.8 409 6.9 73 6.3  
  HI 84 1.2 70 1.2 14 1.2  
  IA 526 7.5 453 7.7 73 6.3  
  NM 166 2.4 133 2.3 33 2.8  
  Seattle 397 5.6 331 5.6 66 5.7 < 0.01
  UT 253 3.6 206 3.5 47 4.0  
  Atlanta 184 2.6 NS NS NS NS  
  Rural GA 20 0.3 NS NS NS NS  
  KY 614 8.7 496 8.4 118 10.2  
  LA 506 7.2 419 7.1 87 7.5  
  NJ 1,223 17.4 1,045 17.8 178 15.3  
  CA 2,158 30.6 1,788 30.4 370 31.9  
Percent of 25+ year olds in census tract with some college         0.87
  0-< 25% 2,535 36.0 2,127 36.1 408 35.1  
  ≥ 25% 4,513 64.0 3,760 63.9 753 64.9  
Urban vs.rural         
  Big Metro 3,867 54.9 3,256 55.3 611 52.6  
  Metro 2,071 29.4 1,708 29.0 363 31.3 0.33
  Urban 410 5.8 342 5.8 68 5.9  
  Less Urban 570 8.1 470 8.0 100 8.6  
  Rural 130 1.8 111 1.9 19 1.6  
Percent living in poverty in census tract         
  Missing 38 0.5 NS NS NS NS  
  0-< 5% 2,311 32.8 NS NS NS NS 0.05
  5-< 7% 978 13.9 811 13.8 167 14.4  
  7-< 12% 1,552 22.0 1306 22.2 246 21.2  
  ≥ 12% 2,169 30.8 1762 29.9 407 35.1  
Other conditions         
  Anemia 652 9.3 501 8.5 151 13.0 < 0.0001
  Neutropenia 14 0.2 NS NS NS NS 0.65
  Thrombocytopenia 43 0.6 NS NS NS NS 0.52
  Cardiovascular disease 849 12.0 659 11.2 190 16.4 < 0.0001
  1. Treatment consisted of chemo-immunotherapy, radiation therapy, or both
  2. NS: Not shown due to at least one cell in the characteristic with < 11 observations