Table 3. Hierarchical analysis^* evaluating the impact of primary payer status on the outcomes after aneurysmal subarachnoid hemorrhage, utilizing patients with private insurance as the reference.

Outcome	Medicare		Medicaid		Uninsured
	OR [95% CI]	p	OR [95% CI]	p	OR [95% CI]	p
In-hospital Mortality	1.23 [1.14, 1.34]	<0.001	1.23 [1.14, 1.34]	<0.001	1.49 [1.36, 1.63]	<0.001
Non-routine Discharge	1.62 [1.48, 1.76]	<0.001	1.08 [1.002, 1.16]	0.044	0.53 [0.49, 0.58]	<0.001
	Coef. [95% CI]	p	Coef. [95% CI]	p	Coef. [95% CI]	p
Length of Stay	0.80 [−0.046, 1.65]	0.064	6.00 [4.76, 7.23]	<0.001	0.64 [−0.22, 1.49]	0.144

^*The independent variables included as covariates in regression analyses were patient age, sex, race, comorbidities, median household income of the patient’s zip code, hospital region, hospital location, teaching status, procedural volume, the presence of intracerebral hemorrhage, the performance of a ventriculostomy, year of admission, and aneurysm treatment modality (clipping or coiling).