Table 2.
Parameter | β Estimate | Standard Error of β | Wald 95% CI | Pb | |
---|---|---|---|---|---|
Intercept | 31.62 | 2.29 | 27.14 | 36.11 | <.0001 |
Age (years) | |||||
<65 | −5.65 | 2.82 | −11.16 | −0.13 | 0.045 |
≥65 | reference | 0 | 0 | 0 | . |
Household Income ($k/year)a | |||||
<50 | −6.81 | 2.82 | −12.35 | −1.28 | 0.016 |
≥50 | reference | 0 | 0 | 0 | . |
Scale | 10.58 | 0.98 | 8.82 | 12.69 |
Abbreviations: CI=confidence interval
Median household income by County (2016 U.S. Census data)
p-values derived from linear regression