Regression models evaluating prior year (2009) predictors of subsequent year (2010) costs.

Each model had only the single independent variable in the first column, controlling for age, gender and mental health diagnosis. t indicates the strength of the association and the p value the statistical significance. R2 is the explained variance, that is, the extent to which the prior year variables predict subsequent year costs; the higher the R2, the greater the explanatory or predictive power. Regression models evaluating prior year (2009) predictors of subsequent year (2010) costs.