. Author manuscript; available in PMC: 2017 Aug 1.

Published in final edited form as: J Pediatr Urol. 2016 Apr 16;12(4):232.e1–232.e6. doi: 10.1016/j.jpurol.2016.03.014

Table 3.

Bivariate/multivariate analysis of LOS and cost for MIS UNC

Economic outcomes^a	Unadjusted RR (95% CI)	Adjusted RR^b (95% CI) value^b	p
LOS	0.74 (0.62–0.89)	0.80 (0.66–0.97)	0.02
Cost	1.47 (1.15–1.87)	1.40 (1.09–1.80)	0.01

Using open UNC as reference.

After adjusting for age, gender, insurance, year, comorbidity, teaching status, hospital region, and hospital bedsize.