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Table 3 Median and 75th percentile of time to diagnosis of non-urgent colorectal cancer patients (n = 7198)

From: Factors associated with mode of colorectal cancer detection and time to diagnosis: a population level study

Factors Time to diagnosis (days)
Median 75th percentile p-valuea
Overall 79 206  
Patient and clinical factors
 Age at diagnosis
   < 50 81 177 <.0001
  50–59 74 158  
  60–69 69 172  
  70–79 82 223  
  ≥ 80 105 286  
 Residential zones
  Calgary 78 196 0.275
  Central 84 227  
  Edmonton 80 208  
  North 78 223  
  South 74 194  
 Median annual household income
  < $45389 80.5 234 0.0035
  $45389 - $59119 87 219  
  $59119 - $80148 77 196  
  ≥ $80148 74 177  
  Missing 74 278  
 Anatomic site
  Colon 87 227 <.0001
  Rectum 70 171.5  
 Stage at diagnosis
  I 90 206 0.0007
  II 78 212  
  III 78 211  
  IV 70 196.5  
 Charlson comorbidity score
  0 70 164 <.0001
  1 88 219  
  ≥ 2 147 322  
 Gastrointestinal comorbidities
  Yes 88 195 0.0039
  No 76 210  
Healthcare utilization factors
 UPC index
  < 3 primary care visits 50 112 <.0001
  Low (<50%) 90 231  
  Medium (50%–80%) 87 223  
  High (>80%) 73 181.5  
 Visits to any physician
  0–1 38 76 <.0001
  2 71 151  
  3 125 276  
  4 189 348  
  ≥ 5 287 436  
 GP visits
  0–1 56 127 <.0001
  2 104 245  
  ≥ 3 226 384  
 GI specialist visits
  0 64 160 <.0001
  1 102 245  
  ≥ 2 224.5 413  
 non-GI specialist visits
  0 76 194 <.0001
  ≥ 1 201 358  
 Endoscopies
  0 97 271 <.0001
  1 71 176  
  ≥ 2 129 285  
 Diagnostic imaging tests
  0 61 135 <.0001
  1 84 226  
  2 125 290  
  ≥ 3 183 302  
 Method of detection
  Screen-detected 74 183 0.0002
  Symptomatic 84 223  
  1. aKruskal-Wallis test was used to compare medians across the groups