1. Tsochatzis EA, Bosch J, Burroughs AK. Liver cirrhosis. Lancet. 2014; 383:1749–1761. PMID:
24480518.
2. Han EC, Ryoo SB, Park JW, Yi JW, Oh HK, Choe EK, et al. Oncologic and surgical outcomes in colorectal cancer patients with liver cirrhosis: a propensity-matched study. PLoS One. 2017; 12:e0178920. PMID:
28586376.
3. Friedman LS. Surgery in the patient with liver disease. Trans Am Clin Climatol Assoc. 2010; 121:192–204. PMID:
20697561.
4. Nguyen GC, Correia AJ, Thuluvath PJ. The impact of cirrhosis and portal hypertension on mortality following colorectal surgery: a nationwide, population-based study. Dis Colon Rectum. 2009; 52:1367–1374. PMID:
19617746.
5. Lopez-Delgado JC, Ballus J, Esteve F, Betancur-Zambrano NL, Corral-Velez V, Manez R, et al. Outcomes of abdominal surgery in patients with liver cirrhosis. World J Gastroenterol. 2016; 22:2657–2667. PMID:
26973406.
6. Ziser A, Plevak DJ, Wiesner RH, Rakela J, Offord KP, Brown DL. Morbidity and mortality in cirrhotic patients undergoing anesthesia and surgery. Anesthesiology. 1999; 90:42–53. PMID:
9915311.
7. Bray F, Ferlay J, Soerjomataram I, Siegel RL, Torre LA, Jemal A. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2018; 68:394–424. PMID:
30207593.
8. Baek Y, Yi M. Factors influencing quality of life during chemotherapy for colorectal cancer patients in South Korea. J Korean Acad Nurs. 2015; 45:604–612. PMID:
26364535.
9. Sorensen HT, Friis S, Olsen JH, Thulstrup AM, Mellemkjaer L, Linet M, et al. Risk of liver and other types of cancer in patients with cirrhosis: a nationwide cohort study in Denmark. Hepatology. 1998; 28:921–925. PMID:
9755226.
10. Lee YH, Han K, Ko SH, Ko KS, Lee KU. Taskforce Team of Diabetes Fact Sheet of the Korean Diabetes Association. Data analytic process of a nationwide population-based study using national health information database established by national health insurance service. Diabetes Metab J. 2016; 40:79–82. PMID:
26912157.
11. Quan H, Sundararajan V, Halfon P, Fong A, Burnand B, Luthi JC, et al. Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data. Med Care. 2005; 43:1130–1139. PMID:
16224307.
12. R Core Team. R: A language and environment for statistical computing. Vienna: R Foundation for Statistical Computing;2013. Available online at
https://www.R-project.org/.
13. An J, Won S, Lutz SM, Hecker J, Lange C. Effect of population stratification on SNP-by-environment interaction. Genet Epidemiol. 2019; 43:1046–1055. PMID:
31429121.
14. Singal AG, Pillai A, Tiro J. Early detection, curative treatment, and survival rates for hepatocellular carcinoma surveillance in patients with cirrhosis: a meta-analysis. PLoS Med. 2014; 11:e1001624. PMID:
24691105.
15. Bruix J, Reig M, Sherman M. Evidence-based diagnosis, staging, and treatment of patients with hepatocellular carcinoma. Gastroenterology. 2016; 150:835–853. PMID:
26795574.
16. Shim JI, Kim Y, Han MA, Lee HY, Choi KS, Jun JK, et al. Results of colorectal cancer screening of the national cancer screening program in Korea, 2008. Cancer Res Treat. 2010; 42:191–198. PMID:
21253320.
17. Csikesz NG, Nguyen LN, Tseng JF, Shah SA. Nationwide volume and mortality after elective surgery in cirrhotic patients. J Am Coll Surg. 2009; 208:96–103. PMID:
19228510.
18. Wu CC, Hsu TW, Chang CM, Yu CH, Lee CC. Age-adjusted Charlson comorbidity index scores as predictor of survival in colorectal cancer patients who underwent surgical resection and chemoradiation. Medicine (Baltimore). 2015; 94:e431. PMID:
25590852.
19. Chang CM, Yin WY, Wei CK, Wu CC, Su YC, Yu CH, et al. Adjusted age-adjusted Charlson comorbidity index score as a risk measure of perioperative mortality before cancer surgery. PLoS One. 2016; 11:e0148076. PMID:
26848761.
20. Laor A, Tal S, Guller V, Zbar AP, Mavor E. The Charlson Comorbidity Index (CCI) as a mortality predictor after surgery in elderly patients. Am Surg. 2016; 82:22–27. PMID:
26802847.
21. Utsunomiya T, Saitsu H, Saku M, Yoshida K, Matsumata T, Shimada M, et al. Rare occurrence of colorectal cancer metastasis in livers infected with hepatitis B or C virus. Am J Surg. 1999; 177:279–281. PMID:
10326842.
22. Song E, Chen J, Ou Q, Su F. Rare occurrence of metastatic colorectal cancers in livers with replicative hepatitis B infection. Am J Surg. 2001; 181:529–533. PMID:
11513779.
23. Schrag D, Cramer LD, Bach PB, Begg CB. Age and adjuvant chemotherapy use after surgery for stage III colon cancer. J Natl Cancer Inst. 2001; 93:850–857. PMID:
11390534.