Multivariable Model Predicting Preventable Hospitalization (PH) Costs Controlling For Other Factors^a,^b

Variable	Comparison	Ratio Estimate	p value
Race/Ethnicity	Chinese vs. Whites	0.99 [0.88, 1.11]	0.82
	Filipino vs. Whites	0.99 [0.93, 1.05]	0.73
	Hawaiian vs. Whites	1.06 [1.00, 1.12]	0.06
	Japanese vs. Whites	1.06 [1.00, 1.12]	0.07
	Other Asian vs. Whites	0.96 [0.87, 1.07]	0.50
	Other PI vs. Whites	0.91 [0.82, 1.01]	0.07
	Others vs. Whites	0.96 [0.90, 1.03]	0.27
	Samoan vs. Whites	0.95 [0.79, 1.13]	0.54
PH Type	DM Uncontrolled vs. CHF	0.58 [0.51, 0.67]	<.0001
	DM short-term vs. CHF	0.87 [0.82, 0.93]	<.0001
	DM long-term vs. CHF	1.05 [1.00, 1.09]	0.04
	DM extremity vs. CHF	2.21 [2.04, 2.39]	<.0001
	Hypertension vs. CHF	0.75 [0.70, 0.79]	<.0001
	Angina vs. CHF	0.61 [0.56, 0.66]	<.0001
Insurance	DOD vs. Private	1.25 [1.14, 1.38]	<.0001
	Medicare vs. Private	1.12 [1.08, 1.16]	<.0001
	Medicaid vs. Private	1.11 [1.07, 1.15]	<.0001
	Others vs. Private	1.07 [1.00, 1.13]	0.05
Age Group	50–64 vs. <50	1.12 [1.07, 1.17]	<.0001
	65–79 vs. <50	1.06 [1.00, 1.12]	0.03
	80+ vs. <50	1.02 [0.96, 1.09]	0.54
Gender	Female vs. Male	1.04 [1.02, 1.06]	0.0007
Island	Maui vs. Oahu	1.38 [1.16, 1.64]	0.0002
	Hawaii vs. Oahu	1.17 [1.03, 1.31]	0.01
	Kauai vs. Oahu	1.27 [1.04, 1.54]	0.02
	Others vs. Oahu	1.32 [1.06, 1.65]	0.01
Substance Use	Substance use vs. No	1.06 [1.02, 1.11]	0.005
Charlson Comorbidity Index	CCI	1.04 [1.04, 1.05]	<.0001

^aAlso controlling for hospital and interactions for race/ethnicity with age group and with preventable hospitalization type.

^bGamma regression with log link was used for multivariable analysis.