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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