Table 2.

Association between undergoing surgery 56-84 days or 85-112 days, compared to <56 days, on post-operative and long-term outcomes.

	56-84 days		85-112 days
	Estimatea	p-value	Estimatea	p-value
5-year mortality, HR (95% CI)	1.08 (1.02, 1.14)	0.01	1.10 (1.00, 1.21)	0.06
Post-operative events, OR (95% CI)
30-day unplanned readmission	0.90 (0.74, 1.10)	0.31	0.86 (0.61, 1.22)	0.41
30-day mortality	1.30 (1.02, 1.65)	0.03	1.37 (0.94, 2.00)	0.10
90-day mortality	1.20 (1.02, 1.41)	0.03	1.56 (1.22, 2.00)	0.0004
LOS after surgery, CIE (95% CI)	0.56 (0.07, 1.06)	0.03	0.81 (−0.06, 1.68)	0.07

Abbreviations: LOS, length of stay; CIE, change in estimate (linear regression); CI, confidence interval; OR, odds ratio (logistic regression); HR, hazard ratio (Cox proportional hazards regression)

^aCompared to patients who underwent surgery <56 days after nCRT; adjusted for year of diagnosis, patient age, gender, race/ethnicity, primary insurance type, Charlson-Deyo comorbidity score, median residential income, residential education level, cancer histology, clinical T, and clinical N status

^bFollow-up started 4 months after diagnosis to account for treatment duration