. Author manuscript; available in PMC: 2017 Jul 31.

Published in final edited form as: Hosp Pediatr. 2017 Jan 10;7(2):70–78. doi: 10.1542/hpeds.2016-0051

Table 2.

Adjusted relative differences in total costs with 95% confidence intervals, compared to hospital costs for privately-insured English speakers.

Preferred language	Insurance type	Main analysis^a (n=19,249)	Stratified analysis^b		Sensitivity analysis^c (n=19,249)

			LOS <3 days (n=11,122)	LOS ≥3 days (n= 8127)
English	Public	0.93 (0.91, 0.96)^*	0.97 (0.94, 1.01)	0.98 (0.93, 1.04)	0.99 (0.94, 1.04)

Spanish	Private	0.79 (0.67, 0.93)^*	0.94 (0.80, 1.12)	0.59 (0.34, 1.00)^**	0.59 (0.44, 0.79)^*
Spanish	Public	1.34 (1.12, 1.59)^*	1.08 (0.91, 1.30)	1.75 (1.01, 3.02)^*	1.75 (1.30, 2.35)^*

Other languages	Private	1.05 (0.95, 1.17)	1.01 (0.87, 1.18)	1.11 (0.91, 1.37)	1.14 (0.94, 1.37)
Other languages	Public	0.95 (0.84, 1.07)	0.94 (0.80, 1.11)	1.01 (0.80, 1.28)	0.99 (0.80, 1.23)

Based on a generalized linear model with log link, gamma family, and clustered on individual, controlling for length of stay (LOS), race/ethnicity, distance from hospital, medical complexity, asthma diagnosis, age category, insurance type, preferred language, and the interaction between insurance and language

Adjusting for same potential covariates as main analysis, and stratified by LOS ≥3 days

Identical to main analysis, but not controlling for LOS

P < .05

^**

P < .055