Fig. 4

Self-efficacy versus top latent clinical components from PLSR model. Corresponds to a partial least squares regression of the outcome, degree of self-efficacy (outcome labelled as SelfEf). Input variables (black text) are abbreviated as in Fig. 1, but SelfEf appears as red text, since it is the outcome in this model. Inputs contributing unique explanatory value to an outcome are located on outermost circles, suggesting that child body mass index and distance travelled to receive care at the CF center are the primary predictors of adherence to aerosolized medication