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. 2015 Jun 11;17(6):e143. doi: 10.2196/jmir.4333

Table 2.

Multivariate coefficient of determination (R 2 ) results.

Endogenous construct R 2 Control variable effects

With control variables Without control variables ∆R 2 ƒ2 Effects
Compliance 0.347 0.333 0.014 0.021 Small
Patient-physician concordance 0.519 0.486 0.033 0.069 Small
Perceived information asymmetry 0.645 0.577 0.068 0.192 Medium