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Table 6 Multivariate competing risks regression analysis for risk of death from CRC, for stage D CRC

From: Sociodemographic disparities in survival from colorectal cancer in South Australia: a population-wide data linkage study

Covariates   No. CRC deaths/total Stage D (n = 649)
HR 95 % CI p-value
Site Colon 400/438 1.00 - -
Rectum 185/211 0.71 0.58-0.87 0.001
Stage dukes A   - - -
B   - - -
C   - - -
Grade Low 8/10 1.00 - -
Intermediate 314/358 1.25 0.53-2.94 0.605
High 143/155 2.04 0.86-4.83 0.105
Unknown 120/126 2.26 0.94-5.42 0.067
Age group 50-59 126/143 1.00 - -
60-69 185/205 1.15 0.90-1.47 0.254
70-79 274/301 1.15 0.90-1.46 0.261
Sex Female 237/263 1.00 - -
Male 348/386 1.11 0.92-1.33 0.295
Private Insurance No 334/360 1.00 - -
Yes 251/289 0.80 0.67-0.96 0.016
Comorbidity None 361/396 1.00 - -
One (not severe) 106/126 0.87 0.68-1.11 0.259
Multiple / severe 118/127 1.13 0.87-1.45 0.364
SES quintile Low 166/182 1.00 - -
Low-mid 116/129 0.85 0.65-1.11 0.231
Middle 104/113 1.07 0.81-1.41 0.622
Mid-high 107/113 1.15 0.90-1.48 0.259
High 92/112 0.65 0.47-0.89 0.007
Residence Urban 429/478 1.00 - -
Outer urban 48/55 1.00 0.74-1.34 0.975
Rural 71/77 1.05 0.79-1.41 0.724
Remote 37/39 0.91 0.67-1.23 0.553
Surgerya No 189/199 1.00 - -
Yes 396/450 0.58 0.46-0.72 0.000
Radiotherapya No 485/540 1.00 - -
Yes 100/109 1.25 0.98-1.58 0.068
Chemotherapya No 233/258 1.00 - -
Yes 352/391 0.62 0.51-1.04 0.000
Diagnosis year (continuous) 585/649 0.99 0.94-1.04 0.619
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