Technical Appendix: The Model for Health Insurance Coverage

Dependent variable: Uninsured Adults 19-64 without Dependents
                    2009-2010 data for 49 states except MA

All variables are proportions and measured as "logits."
                coefficient   std. error   t-ratio   p-value 
  -----------------------------------------------------------
  const           1.22691     0.347772      3.528    0.0010   ***
  lgt_U3          0.728698    0.0918831     7.931    5.94e-10 ***
  lgt_Extr+Cons   0.280012    0.0747943     3.744    0.0005   ***
  lgt_UnPriv     −0.164442    0.0460793    −3.569    0.0009   ***
  lgt_NotEng      0.119194    0.0296539     4.020    0.0002   ***
  lgt_McCain      0.217339    0.0810080     2.683    0.0103   **

S.E. of regression   0.141875   Adjusted R-squared   0.726246

The predictors include:

U(3) – the state’s U(3) unemployment rate;
Extr+Cons – the proportion of the state’s workforce in mining, logging, and construction;
UnPriv – the proportion of the state’s private workforce that is unionized;
NotEng – the proportion of the state’s citizens who have no English language skills;
McCain – the proportion of the state’s 2008 Presidential vote won by Republican John McCain

Sources:
U(3) – Bureau of Labor Statistics, Alternative Measures of Labor Underutilization for States, 2010;
Extr+Cons – Bureau of the Census, Table 631. Employees in Nonfarm Establishments–States: 2010
UnPriv – Barry Hirsch and David Macpherson, Union Membership and Coverage Database from the CPS
NotEng – Census Bureau, Table 4A.  Population 5 Years and Over Speaking a Language Other Than English at Home by English-Speaking Ability by State: 2007; percent responding “not at all” to speaking ability;
McCain – David Leap, Atlas of U.S. Presidential Elections, Results for 2008