Table 1.

Referral Rates by Patient Characteristics

	N	Percentage Referred	χ²	P Value
Age group			33.91	.001
Under 18	62,027	6.73
18 to 64	163,359	10.82
65+	25,854	7.24
Gender			8.02	.022
Female	152,269	9.11
Male	98,967	9.95
Race			62.81	0.002
White	169,020	9.86
African American	12,370	9.07
Latino	6,241	8.27
Asian	15,739	7.91
Unknown	17,312	9.24