Abstract
BackgroundThe National Accreditation Program for Rectal Cancer (NAPRC) recommends definitive treatment of rectal cancer commence within 60 days from diagnosis. This study aimed to assess predictors of >60 days delay between diagnosis and definitive surgery of rectal cancer and the impact on survival and short-term outcomes. MethodsRetrospective cohort analysis of patients with stage I-III rectal adenocarcinoma who underwent proctectomy without preoperative neoadjuvant treatment from the National Cancer Database (2015–2019). Based on the time interval between diagnosis and definitive surgery, patients were divided into timely non-adherent (>60 days) and timely-adherent (≤60 days) groups. Multivariate analysis determined predictors of delayed definitive surgery. Results9479 patients (57.5 % males; mean age: 63.7 years) had a 41-day median time between diagnosis and definitive surgery. Non-adherence was noted in 27.9 % of patients. Independent predictors of non-adherence were male sex (Odds ratio [OR]: 1.25; p < 0.001), Black (OR: 1.65; p < 0.001) or Asian (OR: 1.33; p = 0.014) race, Charlson score 2 (OR: 1.33; p = 0.005) or 3 (OR: 1.55; p < 0.001), urban residence (OR: 1.21; p = 0.003), abdominoperineal resection (OR: 1.69; p < 0.001), pelvic exenteration (OR: 1.7; p = 0.002), and robotic-assisted surgery (OR: 1.22; p = 0.001). Medicare (OR: 0.725; p = 0.003) and private insurance (OR: 0.711; p < 0.001) were associated with better adherence. 30-day and 90-day mortality, unplanned readmission, and overall survival were similar. ConclusionsMale Black or Asian patients with high Charlson scores, and undergoing abdominoperineal resection, pelvic exenteration, and robotic-assisted surgery were more likely non-adherent with NAPRC standards with >60 days delay before definitive surgery for rectal cancer. Hopefully, recognition for these reasons for delay of definitive surgery will lead to an improvement in adherence to the standards.
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