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Table 4 Proportion and odds ratios of patients with stage III colon cancer not offered chemotherapy

From: The effect of comorbidity on the use of adjuvant chemotherapy and survival from colon cancer: a retrospective cohort study

   total (n, %) not offered chemo Crude odds ratio 95% confidence intervals Adjusted odds ratio* 95% confidence intervals
Sex Female 103 (29, 28%) 1.0   1.0  
  Male 86 (31, 36%) 1.4 0.8–2.7 1.8 0.9–3.9
Age 25–54 yrs 33 (4, 12%) 1.0   1.0  
  55–64 yrs 50 (10, 20%) 1.8 0.5–6.4 1.4 0.4–5.1
  65–74 yrs 55 (14, 26%) 2.5 0.7–8.3 1.2 0.3–4.5
  75+ yrs 51 (32, 63%) 12.2 3.7–40.1 8.7 2.3–32.4
Ethnicity Non-Maori 105 (31, 30%) 1.0   1.0  
  Maori 84 (29, 35%) 1.3 0.7–2.3 1.5 0.7–3.4
Charlson comorbidity index O 97 (15, 16%) 1.0   1.0  
  1–2 76 (32, 42%) 4.0 2.0–8.1 3.2 1.4–7.1
  3+ 16 (13, 81%) 23.7 6.0–93.3 20.1 4.2–95.6
  1. *adjusted for all listed variables