Table 1. Demographic data among patients undergoing mechanical thrombectomy procedures.

Frequency of mechanical thrombectomy -- with respect to race, population density, median wealth of zipcode, and expected payer -- among all stroke patients

Group	Thrombectomy procedures (% of stroke patients)	Pairwise p-value when compared to all other subgroups within category
Ethnicity
White	1691 (0.26%)	<0.001
Black	181 (0.18%)	<0.001
Hispanic	176 (0.37%)	<0.001
Asian/Pacific Islander	70 (0.39%)	<0.001
Native American	10 (0.17%)	<0.001
other	69 (0.31%)	<0.001
Population Density
Central counties with >1 million population	955 (0.33%)	<0.001
Fringe counties with >1million population	670 (0.28%)	<0.001
Counties with 250K to 1 million	280 (0.15%)	<0.001
Counties with 50K to 250K	239 (0.25%)	<0.001
Micropolitan counties	306 (0.22%)	<0.001
Non-micropolitan/metropolitan counties	181 (0.21%)	<0.001
Median wealth of zipcode
< $39,000	824 (0.27%)	<0.001*
$39,000 to 47,999	722 (0.24%)	<0.001*
$48,000 to 62,999	536 (0.22%)	<0.001
≥ $63,000	604 (0.29%)	<0.001
Expected payer
Medicare	1463 (0.19%)	<0.001
Medicaid	218 (0.40%)	<0.001
Private	859 (0.44%)	<0.001
Self-pay	142 (0.47%)	<0.001
No charge	5 (0.15%)	<0.001
Other	62 (0.30%)	<0.001

^*: <$39,000 vs $39,000 to 47,999, p= 1.000