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Table 4 Multivariate model for overall survival for chemotherapy cohort (n = 4102)

From: Sidedness is prognostic in locoregional colon cancer: an analysis of 9509 Australian patients

Characteristic

Stage II (n = 1631)

Stage III (n = 2441)

Multivariate

Multivariate

HR (95% CI)

HR (95% CI)

Sided

Left

1

1

Right

0.86 (0.68–1.09)

1.29 (1.11–1.50)

Age

≤60

1

1

61–70

1.90 (1.20–2.99)

1.21 (0.94–1.54)

71–80

2.97 (1.92–4.58)

1.81 (1.43–2.30)

>80

5.92 (3.82–9.19)

2.00 (1.54–2.60)

Grade

Well/mod differentiated

1

1

Poorly Differentiated

1.43 (1.08–1.90)

1.49 (1.26–1.75)

TNM stage

IIIa

1

1

IIIb

2.20 (1.71–2.82)a

1.79 (1.33–2.43)

IIIc

-

3.86 (2.84–5.24)

Sex

Male

1

1

Female

0.85 (0.68–1.07)

0.94 (0.82–1.10)

CCI

0

1

1

1–2

1.42 (1.09–1.52)

1.15 (0.96–1.38)

3–4

1.60 (1.12–2.28)

1.20 (0.94–1.53)

5

2.31 (1.45–3.69)

1.83 (1.36–2.46)

Year Diagnosed

2006–2009

1

1

2010–2013

0.99 (0.79–1.26)

1.00 (0.86–1.17)

Adjuvant Chemotherapy

Nil

1

1

Fluorouracil monotherapy

0.79 (0.51–1.10)b

0.48 (0.40–0.57)

Oxaliplatin doublet

-

0.38 (0.27–0.42)

  1. HR Hazard Ratio, CI confidence interval, CCI Charlson Comorbity index
  2. aIIa vs IIb/IIc, bchemotherapy vs no chemotherapy