Table 4. Subgroup analyses investigating the impact of primary payer on the outcomes after aneurysmal subarachnoid hemorrhage in patients who underwent microsurgical clipping.

	PrivateInsurance	Medicare			Medicaid			Uninsured
	%	%	OR[95% CI]	p	%	OR[95% CI]	p	%	OR[95% CI]	p
In-hospital Mortality	10.5	19.3	1.36[1.16, 1.58]	<0.001	12.3	1.18[1.02, 1.36]	0.025	13.4	1.09[0.88, 1.36]	0.438
Non-routine Discharge	59.2	84.4	1.50[1.32, 1.71]	<0.001	57.8	1.03[0.93, 1.14]	0.632	42.5	0.30[0.25, 0.35]	<0.001
	Days	Days	Coef. [95% CI]	p	Days	Coef. [95% CI]	p	Days	Coef. [95% CI]	p
Length of Stay	19±13	23±15	0.13[−1.30, 1.56]	0.857	26±24	7.63[5.38, 9.87]	<0.001	20±15	2.93[0.49, 5.36]	0.018

^*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, and year of admission.