Table 4.

Number of EDs per 100,000 Population (95% CI) by Income According to Percentage With Poor Education in FIPS Code

Median Household Income, US$	Low Percentage With Poor Education (0%–5.2%)	Medium Percentage With Poor Education (5.2%–10.5%)	High Percentage With Poor Education (>10.5%)
$20,001–$30,000	2.54 (0.59–10.95)	1.59 (0.39–6.45)	1.47 (0.33–6.60)
$30,001–$40,000	1.52 (0.88–2.62)	0.95 (0.60–1.50)	0.88 (0.53–1.47)
$40,001–$50,000	0.85 (0.48–1.49)	0.53 (0.37–0.76)	0.49 (0.30–0.81)
$50,001–$60,000	0.83 (0.42–1.65)	0.52 (0.36–0.76)	0.48 (0.27–0.86)
$60,001–$70,000	0.32 (0.13–0.78)	0.20 (0.08–0.50)	0.19 (0.07–0.50)
$70,001–$80,000	0.62 (0.25–1.56)	0.39 (0.18–0.82)	0.36 (0.15–0.84)

“Poor education” refers to percentage of people age 25 or older with less than 9 years of education.

FIPS = Federal Information Processing Standard.