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. Author manuscript; available in PMC: 2010 Dec 14.
Published in final edited form as: Arthritis Rheum. 2009 Dec 15;61(12):1674–1676. doi: 10.1002/art.24947

Table 1.

Association between differences in patient willingness and worry under high and low volition conditions

Model R R2 Adjusted R2 Std. Error of
the Estimate		 R2 Change F Change P value for
F Change
Order, risk format, video .14 .02 −.003 2.36 .019 .87 .460
Order, risk format, video,
gender, education, age		 .27 .07 .028 2.32 .052 2.43 .068
Order, risk format, video,
gender, education, age,
difference in worry 		.37 .14 .092 2.25 .067 10.07 .002

In this model the dependent variable is the difference in willingness to take the medication associated with the rare risk of an adverse event under high and low volition conditions. The predictor, difference in worry, is entered into the model after the six covariates.