Journal of Cancer Prevention

eISSN 2288-3657
pISSN 2288-3649

Survival time, cumulative survival probability and log-rank test for the study population according to patient related characteristics during six-year of follow-up (Kaplan–Meier method) of colorectal cancer patients in TASH Oncology Department

Variable Category Median survival (mo) (95% CI) 1-year survival 2-year survival 3-year survival 4-year survival 5-year survival Overall survival Log-rank test (P-value)
Sex Male 30.4 (26.1-34.8) 91.7 62.8 38.5 26.9 20.6 13.7 0.023
Female 38.3 (36.5-52.8) 89.3 72.7 60.2 39.2 25.2 25.2
Age (yr) < 40 38.0 (30.5-54.3) 91.5 71.5 54.1 44.7 27.4 22.0 < 0.001
40-49 36.1 (26.7-39.1) 95.1 74.5 44.5 20.9 0 0
50-59 41.8 (33.1-47.2) 93.2 73.5 60.3 28.7 28.7 0
60-69 24.4 (19.0-28.5) 85.1 48.9 22.8 22.8 0 0
≥ 70 22.3 (15.5-30.7) 81.0 34.2 11.4 0 0 0
Family history Yes 30.7 (23.8-52.8) 92.2 66.8 39.7 31.7 23.8 0 0.86
No 35.5 (30.4-37.6) 90.5 67.5 48.0 30.6 22.5 18.7
Residence Urban 34.7 (26.9-36.8) 90.0 63.1 45.0 28.1 19.3 19.3 0.073
Rural 36.7 (31.2-37.1) 92.1 75.8 51.4 34.6 25.9 17.3
Marital status Single 42.0 (36.5-54.3) 95.6 81.9 67.2 45.2 9.0 0 0.0002
Married 36.1 (28.9-40.3) 91.2 68.1 45.0 33.0 26.4 26.1
Widowed 29.3 (17.0-37.6) 80.3 53.6 28.7 19.2 0 0
Divorced 24.4 (18.5-31.2) 86.7 47.7 10.5 0 0 0
Insurance Free paid 36.5 (29.8-44.6) 92.2 71.7 50.5 33.2 14.2 0 0.187
Paid 31.3 (27.0-36.8) 89.2 63.5 43.9 30.0 18.9 18.9
Smoking status Yes 23.3 (20.4-25.9) 86.7 47.6 19.9 13.4 0 0 < 0.001
No 38.3 (36.1-45.3) 92.0 74.2 57.4 38.5 23.1 27.7
Alcohol Yes 25.6 (22.6-30.7) 89.5 54.1 32.1 17.7 6.3 0 < 0.001
consumption No 40.3 (36.1-52.8) 91.5 76.1 57.3 41.8 28.1 28.1
Body mass index < 18.5 31.3 (25.2-45.3) 92.9 64.3 47.4 14.8 0 0.99
(kg/m2) 18.5-24.9 34.8 (29.3-37.1) 90.7 68.5 46.5 30.9 19.2 19.2
25.0-29.9 36.6 (17.8-…) 84.4 72.4 30.9 0 0 0
≥ 30.0
Comorbidity Yes 23.2 (18.3-25.9) 87.0 45.3 21.7 8.2 2.7 0 < 0.001
No 44.6 (36.8-52.8) 92.2 77.3 60.9 43.7 30.8 30.8

The total number of 621 subjects were selected from patients registered between January 1, 2013 and December 30, 2017 with follow-up until December 30, 2018. Values are presented as percent only. TASH, Tikur Anbessa Specialized Hospital.

Journal of Cancer Prevention 2020;25:38~47 https://doi.org/10.15430/JCP.2020.25.1.38
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