Table 4.

Linear regression results for log of real cost (premiums) per employed worker: U.S., 1992–2007

^aRegression #1 omitted the all-cases covariate, regression #2 omitted the interest rate covariate, regression #3 omitted the Dow Jones Industrial Average covariate, and regression #4 included all covariates.

^bThe sample size was 16 for each regression. The statistical significance of the entire regression (F-statistic) for all regressions was p<0.0001.

^cThe covariate did not enter regression.

NA = not applicable