Table 5.

Sensitivity analyses of teaching practice programs across hospital volume categories^*

	Residency teaching vs. Non-teaching		Fellowship teaching vs. Non-teaching
	OR (95% CI)	P	OR (95% CI)	P
Intraoperative complications
Low HV	1.22 (0.88–1.68)	0.2	3.16 (1.35–7.37)	0.008
Intermediate HV	1.37 (1.02–1.85)	0.04	1.20 (0.52–2.78)	0.7
High HV	1.03 (0.72–1.48)	0.9	0.69 (0.42–1.13)	0.1
Postoperative complications
Low HV	1.06 (0.94–1.19)	0.3	1.16 (0.71–1.87)	0.6
Intermediate HV	0.93 (0.83–1.04)	0.2	0.53 (0.34–0.80)	0.003
High HV	0.96 (0.83–1.10)	0.5	0.73 (0.61–0.88)	0.001
pLOS
Low HV	0.99 (0.90–1.07)	0.7	0.54 (0.36–0.82)	0.004
Intermediate HV	0.98 (0.89–1.08)	0.7	0.67 (0.49–0.93)	0.02
High HV	0.79 (0.68–0.91)	0.002	0.73 (0.61–0.87)	0.001

^*Models for prediction of in-hospital mortality were not performed due to insufficient number of events observed for each subgroup.

HV: hospital volume, OR: odds ratio, CI: confidence interval, pLOS: prolonged length of stay

All models adjusted for patient age, year of surgery, race, hospital region, hospital location, comorbidities, insurance status, and RP approach.