Table 2: Obesity and oncologic outcomes after CRC surgery.

StudyStudy typePopulation Obese versus nonobese CRC patientsConclusion

Healy et al. 2010 [19]Retrospective cohortBritish414No difference, 5-year survival 60% both groupsClass I obese CRC patients have similar survival rates compared to nonobese CRC patients

Sinicrope et al. 2010 [23]Randomized controlled TrialAmerican4,381Survival difference, Class I obese women HR 1.24 versus nonobese, womenOverall CRC survival is influenced by BMI and Gender.
Survival difference, Class II/III obese men HR 1.35 versus nonobese men

Ballian et al. 2010 [24]Retrospective cohortAmerican254Similar disease-free survival rates at 2 years postop (85% for obese and 76% for nonobese)
Obese rectal cancer patients have similar disease-free survival rates compared to nonobese rectal cancer patients

Singh et al. 2011 [25]Retrospective cohortBritish234Similar disease recurrence rates (8% for both obese and nonobese patients)Obese CRC patients have similar disease recurrence rates compared to nonobese CRC patients

Yamamoto et al. 2012 [26]Retrospective cohortJapanese273Similar recurrence-free survival and overall survival after 72 monthsObese CRC patients have similar survival rates compared to nonobese CRC patients